Opnbx Alternatives

Opnbx is a tool many people choose for good reasons. It works well for specific tasks, particularly in areas like lead generation. If that is your main goal, you might find it does the job effectively. It has clear strengths in its focused approach.

However, some users find it has a steep learning curve and limited integrations. These points might slow your team down. So, we analyzed the best Opnbx alternatives from G2 reviews to help you choose. We will cover their pros and cons. Let's get started.

Explore 11x For Your Sales Team

If you want to add digital workers to your sales efforts, look at 11x. The platform offers autonomous agents designed to manage different sales functions. This approach may fit well with your team's objectives and workflow.

11x is a GTM platform where AI agents autonomously manage the sales process. One agent, Alice, finds prospects, handles outreach via email and LinkedIn, and updates the CRM.

Another agent, Julian, qualifies inbound leads and books meetings. The platform unifies functions like data enrichment, outreach, and email warmup, removing the need for separate point solutions.

Opnbx Alternatives

Here is a detailed breakdown of popular Opnbx alternatives. We compare each tool's pricing, main features, and specific advantages and drawbacks to help you find the right fit.

1) Outreach

Outreach is an AI-powered sales execution platform. It uses AI agents and data-driven workflows for pipeline development. The system organizes business books and sends relevant outbound communication to increase qualified leads. It also provides automatic account research and personalization to support these efforts.

Outreach's Main Features

• Deploys AI agents for each stage of the revenue cycle, including prospecting, deal management, and retention.
• Provides AI-driven rep coaching through meeting summaries and analytics via Kaia, with deep-linked call moments for managers.
• Surfaces risks, next steps, and recent activity on any account or deal with its Smart Account and Smart Deal Assist features.
• Detects topics and analyzes buyer sentiment across meetings, calls, and emails to provide deeper insights.

How Outreach Compares To Opnbx

Average Review score: 4.3/5 stars based on 3,479 G2 reviews.

• Outreach covers the full revenue cycle with its AI agents, from prospecting to retention. This provides a broader scope compared to Opnbx, which focuses more on lead generation.
• The tool provides more integration options than Opnbx. This allows for a smoother connection with your existing sales and marketing software stack.
• It includes an AI coaching feature called Kaia. This feature analyzes calls and meetings to provide reps with actionable feedback, an area not covered by Opnbx.
• Outreach offers Smart Deal Assist to identify risks and suggest next steps within a deal. This gives a more detailed level of deal management support than Opnbx.

Outreach's Limitations Compared To Opnbx

• Outreach provides a wide range of features for the full sales cycle. This sometimes makes it more complex to use for specific tasks compared to a more focused tool like Opnbx.

• Some users report that the platform sometimes loads slowly. This can interrupt workflow, an issue that might be less common with a more specialized application.

• While the tool offers many integrations, some users mention occasional sync issues with their CRM. This can create data discrepancies between the connected platforms.

Pricing and Cost-Effectiveness

Outreach does not publicly list its pricing, as it is tailored to specific business needs. For the most accurate and up-to-date information, we recommend visiting the company’s official website to request a quote based on your team's requirements.

2) Salesloft

Salesloft is a Revenue Orchestration Platform that aligns sales engagement, AI insights, and deal management in a single workflow. It uses AI agents to find buyer signals and automate tasks. This process helps teams build a more qualified pipeline and shorten deal cycles.

The platform turns prospects into profit through guided cadences and AI chat agents. These tools support pipeline creation and coverage for sales teams.

Salesloft's Main Features

• The Rhythm feature uses an AI prioritization engine to recommend the right actions at the right moments.
• Its Drift function deploys AI chat agents to engage website visitors with real-time, personalized conversations.
• A Forecast module combines real-time deal data, AI, and seller input for more accurate forecasting.
• Conversation Intelligence provides insights from recorded calls for data-driven coaching and performance improvement.

How Salesloft Compares To Opnbx

Average Review score: 4.5/5 stars based on 4,145 G2 reviews.

• Salesloft's Rhythm feature uses an AI engine to guide reps on their next best action. This provides a more structured workflow compared to Opnbx, which focuses on lead generation tools.
• It deploys AI chat agents to engage website visitors in real-time. This adds an inbound qualification channel different from Opnbx's outbound-focused approach.
• The platform includes a Forecast module that uses AI and seller data for more accurate predictions. This offers a deal management capability that Opnbx does not have.
• Salesloft provides Conversation Intelligence to analyze recorded calls for coaching insights. This gives managers a data-driven tool for team improvement, a feature not available in Opnbx.

Salesloft's Limitations Compared To Opnbx

• Salesloft covers the full sales process with many features. This can feel complex for teams who only need a focused lead generation tool like Opnbx.

• Some users report occasional issues with call quality or email syncing. This can interrupt daily outreach, a task where a specialized tool like Opnbx needs to be reliable.

• It can take about a month to implement the platform. This setup time is longer than for a more specialized tool like Opnbx, which may offer a faster start for teams.

Pricing and Cost-Effectiveness

Salesloft does not list its pricing publicly, as plans are customized for specific business needs. For the most accurate and up-to-date information, we recommend visiting Salesloft's official website to request a quote.

3) Apollo.io

Apollo.io is a sales intelligence platform with a database of contacts and companies. It helps sales teams find and connect with prospects. The platform offers data enrichment, lead scores, and analytics to support sales activities.

Users build prospect lists, launch email campaigns, and manage outreach from one place. This supports the lead generation process from discovery to first contact.

Apollo.io's Main Features

• Provides access to a database of contacts and companies to build targeted prospect lists.
• Enriches existing data to provide more complete profiles of contacts and companies.
• Scores leads to help sales teams prioritize outreach efforts on promising prospects.
• Offers tools to launch email campaigns and manage outreach from a single platform.

How Apollo.io Compares To Opnbx

Average Review score: 4.7/5 stars based on 8,904 G2 reviews.

• Apollo.io offers a built-in database of over 210 million contacts, which provides a wider pool for prospecting compared to Opnbx's lead generation focus.
• The platform unifies data, outreach, and analytics into a single system, offering a more integrated workflow than Opnbx's specialized lead generation tools.
• Its lead scoring feature helps teams prioritize outreach on the most promising prospects, providing a layer of qualification different from Opnbx's process.
• A free plan is available for a single user, allowing teams to test core functions. This provides an accessible entry point not publicly offered by Opnbx.

Apollo.io's Limitations Compared To Opnbx

• The platform's all-in-one nature can be complex for teams that only need a specialized lead generation tool. Opnbx, in comparison, offers a more focused experience for specific tasks.
• Some users report that contact data in the large database can sometimes be out of date. This may require extra verification steps, which is a different process compared to a more curated tool.
• Its wide range of features can make simple tasks more complicated than in Opnbx. Teams that want a direct lead generation process might find the workflow less straightforward.

Pricing and Cost-Effectiveness

Apollo.io offers transparent pricing with a free plan and paid tiers starting at $49 per user per month. This contrasts with Opnbx, which requires a custom quote, giving Apollo.io more cost predictability. For detailed information, check the pricing on Apollo.io's official website.

4) Reply.io

Reply.io is a sales engagement platform for multichannel outreach. It helps find prospects, verify contact information, and engage them through automated sequences. The system uses an AI assistant to book meetings, which supports sales teams as they build a qualified pipeline.

Reply.io's Main Features

• Deploys an AI SDR agent, Jason AI, for automated prospecting, message generation, reply handling, and meeting booking.
• Combines email, LinkedIn, calls, SMS, and WhatsApp into multichannel conditional sequences.
• Includes a deliverability toolkit with an email health checker, unlimited mailbox warm-up, and a Gmail API send option.
• Provides real-time B2B data search with access to over one billion contacts and intent signals.

How Reply.io Compares To Opnbx

Average Review score: 4.6/5 stars based on 1,458 G2 reviews.

• Reply.io supports multichannel outreach, including SMS and WhatsApp. This offers more communication channels than Opnbx's more focused approach.
• Its AI SDR agent, Jason AI, automates tasks from prospecting to booking meetings. This provides a broader range of automation compared to the lead generation functions in Opnbx.
• The platform includes an email deliverability toolkit with a health checker and warm-up features. This gives users more control over email performance than a standard outreach tool.
• Reply.io provides access to a B2B database with intent signals for prospecting. This is different from Opnbx, which does not offer a built-in contact database.

Reply.io's Limitations Compared To Opnbx

• Reply.io covers many sales tasks, which can make it complex. For teams that just need a simple lead generation tool, Opnbx offers a more focused and straightforward process.
• Its wide range of features can sometimes lead to performance issues in specific areas, like LinkedIn automation. A more specialized tool like Opnbx may offer more consistent performance for its core lead generation functions.
• The platform provides many integrations, but some users mention occasional sync issues. In comparison, Opnbx has fewer integrations, which can mean a more stable connection for the systems it does support.

Pricing and Cost-Effectiveness

Reply.io provides transparent pricing with a free plan and paid tiers starting at $49 per user per month, offering more cost predictability than Opnbx's custom quote model. For detailed information, check the pricing on Reply.io's official website.

5) Lemlist

Lemlist is a sales engagement platform for personalized cold outreach. Sales teams use it to create campaigns with custom text, images, and videos. The tool automates multichannel sequences and follow-ups to connect with prospects. It also has an email warm-up feature to improve deliverability rates.

Lemlist's Main Features

• Creates personalized outreach with dynamic variables for text, images, and custom landing pages.
• Automates multichannel sequences that combine email, LinkedIn actions, WhatsApp messages, and calls.
• Includes a built-in email warm-up and deliverability tool called lemwarm to protect sender reputation.
• Provides access to a B2B database of over 450 million contacts with advanced filtering options.

How Lemlist Compares To Opnbx

Average Review score: 4.4/5 stars based on 276 G2 reviews.

• Lemlist allows for advanced personalization with custom images and videos in outreach emails. This offers a more dynamic approach compared to the standard campaigns in Opnbx.
• It supports multichannel outreach, including calls and WhatsApp messages, within its automated sequences. This provides more ways to connect with prospects than Opnbx's more focused process.
• The platform includes a built-in email warm-up tool to help protect sender reputation. This is a specialized feature for deliverability that Opnbx does not offer.
• Users get access to a B2B database of over 450 million contacts. This gives them a built-in source for prospecting, unlike Opnbx, which requires users to bring their own lead lists.

Lemlist's Limitations Compared To Opnbx

• Lemlist provides a wide range of features for sales engagement. This can make the platform complex for teams who only need a focused lead generation tool like Opnbx.
• Some users report technical issues, especially with data enrichment. A specialized tool like Opnbx may offer more consistent performance for its primary lead generation function.
• Its interface can feel unintuitive to some users because of its many features. In comparison, a tool with a narrower focus like Opnbx might offer a more straightforward workflow for specific tasks.

Pricing and Cost-Effectiveness

Lemlist offers transparent pricing with a free plan, an Email Pro plan at $55 per year, and a Multichannel Expert plan at $79 per month. This model provides more cost predictability than Opnbx, which requires a custom quote. For detailed information, check the pricing on Lemlist's official website.

Choose 11x For Your Sales Team

If your goal is to use digital workers for sales, consider 11x. Its autonomous agents manage prospecting, outreach, and CRM tasks. This lets your team focus on higher-value work. See how it fits your operations with a personalized demo.

Choose 11x For Your Sales Team

With 11x, we use AI to manage the sales process. Our agent Alice finds accounts, enriches data, and handles outreach, while Julian qualifies leads and books meetings. We combine data, outreach, and email warmup in one platform, replacing many tools in a traditional GTM stack.

Book a demo to see our platform in action.

6) Mailshake

Mailshake is a sales engagement platform for cold outreach. It helps sales teams connect with prospects through automated email sequences. The tool allows users to manage campaigns and follow-ups from one place. This process supports lead generation and helps build a consistent sales pipeline.

Mailshake's Main Features

• Uses an AI email writer, SHAKEspeare, to auto-generate and spin copy, subject lines, and A/B test variants.
• Includes an email deliverability suite with a domain setup assistant, free email warm-up, and a list cleaner to avoid spam folders.
• Provides a built-in data finder to search and purchase verified prospect email addresses by role, location, or company.
• Features a lead catcher that prioritizes highly engaged prospects in a dedicated queue for quick action.

How Mailshake Compares To Opnbx

Average Review score: 4.7/5 stars based on 326 G2 reviews.

• Mailshake includes an AI email writer to generate copy and test variants, offering a different approach to content creation than Opnbx.
• It offers a deliverability suite with an email warm-up tool, which gives users more control over sender reputation compared to Opnbx.
• The tool provides a built-in data finder to search for verified prospect emails, unlike Opnbx, which requires users to supply their own contact lists.
• A lead catcher feature prioritizes engaged prospects in a dedicated queue, providing a specific method for lead management not found in Opnbx.

Mailshake's Limitations Compared To Opnbx

• Mailshake offers less customization for certain lead generation workflows. In comparison, a more focused tool like Opnbx may provide deeper control over specific campaign parameters.
• Some users report occasional sync issues with their CRM. This can create data discrepancies, an issue that might be less frequent with a tool that has fewer, but more stable, integrations.
• The platform covers many sales engagement functions. This can make its core lead generation process feel less specialized than Opnbx, which concentrates entirely on that one task.

Pricing and Cost-Effectiveness

Mailshake provides transparent pricing with plans at $29, $59, and $99 per month, offering clear cost predictability. This differs from Opnbx, which uses a custom quote model tailored to specific needs. For detailed plan information, visit Mailshake's official website.

7) Klenty

Klenty is a sales engagement platform. Teams use it to find buyers and connect with them through multi-channel sequences. The system supports outreach via email, calls, and LinkedIn to book meetings. It provides tools to execute outbound sales campaigns and manage prospect connections.

This approach helps sales teams build their pipeline and schedule appointments with potential customers.

Klenty's Main Features

• It offers a sales dialer with a parallel dialing function that calls up to five numbers at once, reaching up to 350 calls per hour.
• The platform deploys an AI inbound agent, SchedX, as a website chatbot to qualify leads and book meetings.
• An autonomous AI agent, SDRx, researches accounts, creates personalized outreach, and books meetings for outbound prospecting.
• It provides real-time coaching during cold calls using AI talk-track tables to enforce a consistent sales methodology.

How Klenty Compares To Opnbx

Average Review score: 4.6/5 stars based on 387 G2 reviews.

• Klenty offers a sales dialer with a parallel dialing function that calls up to five numbers at once. This provides a different approach to outreach compared to Opnbx's lead generation focus.
• It provides an AI inbound agent, SchedX, as a website chatbot. This adds an inbound lead qualification channel that Opnbx does not have.
• The platform includes an autonomous AI agent, SDRx, for outbound prospecting. This automates account research and outreach, offering a different level of automation than Opnbx.
• Klenty gives real-time coaching during cold calls with AI talk-track tables. This provides on-the-spot guidance for reps, a feature not available in Opnbx.

Klenty's Limitations Compared To Opnbx

• Klenty's platform covers many sales functions, which can feel complex for teams that only need a focused lead generation tool like Opnbx.
• Some users report occasional performance lag, which can happen with a multi-featured platform. A more specialized tool like Opnbx may offer a more consistently stable experience for its core task.
• The tool's reporting capabilities can feel general. In comparison, a focused platform like Opnbx might provide more granular metrics for its specific lead generation function.

Pricing and Cost-Effectiveness

Klenty provides transparent pricing with plans at $50, $70, and $100 per user per month. This model offers clear cost predictability, which differs from Opnbx's custom quote approach. For detailed plan information, visit Klenty's official website.

8) Mixmax

Mixmax is a sales engagement platform for businesses that use Gmail. It lets teams engage prospects and build pipeline from their inbox. The tool automates outreach, books meetings, and provides real-time alerts. Users create multi-channel sequences to connect with prospects and manage sales directly within Gmail.

Mixmax's Main Features

• Integrates with the email platform to manage workflows and tasks directly from the inbox.
• Tracks email open rates, link activity, and attachment engagement using its analytics tools.
• Provides email scheduling and content management with options for customization.
• Reports on workflow performance to support process repeatability and analysis.

How Mixmax Compares To Opnbx

Average Review score: 4.6/5 stars based on 1,433 G2 reviews.

• Mixmax integrates directly into Gmail, so users manage sales tasks from their inbox. This differs from Opnbx, which is a separate application that requires switching tabs.
• It allows for interactive elements like polls and surveys within emails. This offers a different way to engage prospects compared to the standard outreach functions in Opnbx.
• The platform has a quick setup that takes days. This is a faster implementation compared to Opnbx, which some users report has a steep learning curve.
• This tool provides detailed email analytics, like open rates and link activity, inside the user's workflow. This offers a more integrated way to monitor engagement than a separate platform.

Mixmax's Limitations Compared To Opnbx

• Mixmax operates primarily within Gmail, which is a limitation for teams that do not use Google Workspace. Opnbx, as a standalone application, is not dependent on a specific email client.
• The platform's focus on inbox workflow means it may lack some advanced, standalone lead generation features. In comparison, Opnbx sometimes offers more granular control over complex campaign automation.
• Some users find that while Mixmax is easy to use, it can be less powerful for highly specific outreach tasks. A more focused tool like Opnbx might provide deeper functionality for certain lead generation scenarios.

Pricing and Cost-Effectiveness

Mixmax provides transparent pricing with plans at $49 and $69 per user per month, offering clear cost predictability compared to Opnbx's custom quote model. For detailed plan information, visit Mixmax's official website.

9) Groove

Groove is a sales engagement platform that connects to a user's email and calendar. It helps sales teams automate tasks and manage multi-channel outreach. The system lets users execute campaigns, track prospect activity, and organize sales workflows to support lead generation.

Groove's Main Features

• Manages support tickets and cases from creation through the response workflow.
• Controls team permissions with user, role, and access management settings.
• Converts incoming emails into support tickets through an email-to-case communication channel.
• Includes productivity tools like internal notes, discussion features, and response templates.

How Groove Compares To Opnbx

Average Review score: 4.6/5 stars based on 193 G2 reviews.

• Groove includes a ticket management system to handle customer support cases. This is different from Opnbx, which focuses on lead generation campaigns.
• It converts incoming emails into support tickets automatically. This provides a structured support workflow, whereas Opnbx uses email for outreach sequences.
• The tool offers internal discussion features for team collaboration on specific cases. This contrasts with Opnbx's design for individual representative outreach.
• Groove provides user and role management to control team permissions for support tasks. This is more specific than the general user access in a lead generation tool like Opnbx.

Groove's Limitations Compared To Opnbx

• Groove focuses on customer support with features like ticket management, which is different from Opnbx's dedicated tools for lead generation.
• The platform is built to handle incoming support emails, so it does not have functions to create and automate outbound sales campaigns for prospecting.
• It lacks built-in tools for finding new contacts, so users who need to build lead lists may find this a key difference from a sales-focused tool.

Pricing and Cost-Effectiveness

Groove provides transparent pricing with plans at $15, $25, and $40 per user per month. This model offers clear cost predictability, which differs from Opnbx's custom quote approach. For detailed plan information, visit Groove's official website.

10) HubSpot Sales Hub

HubSpot Sales Hub is a sales software platform. It helps teams connect with prospects through automated emails and follow-up tasks. The system provides a complete view of leads for prospect selection. Teams can also create a sales content library and manage their pipeline on one platform.

HubSpot Sales Hub's Main Features

• Automates marketing processes and manages email campaigns.
• Manages sales opportunities and the overall pipeline.
• Provides case management tools for customer support.
• Includes social collaboration features for team interaction.

How HubSpot Sales Hub Compares To Opnbx

Average Review score: 4.4/5 stars based on 12,407 G2 reviews.

• HubSpot Sales Hub provides a complete sales platform with a built-in CRM. This offers a unified system to manage the entire sales cycle, which is different from Opnbx's focus on lead generation tasks.
• It includes marketing automation tools to manage email campaigns. This allows teams to nurture leads with automated workflows, a broader capability compared to Opnbx's outreach functions.
• The platform offers case management tools for customer support. This helps teams handle customer issues within the same system they use for sales, a feature not present in Opnbx.
• This tool provides detailed opportunity and pipeline management. It allows for a complete view of the sales funnel, offering more depth than the lead generation focus of Opnbx.

HubSpot Sales Hub's Limitations Compared To Opnbx

• HubSpot Sales Hub is an all-in-one platform. This can be complex for teams that only need a specialized lead generation tool, unlike the more focused approach of Opnbx.
• Some users report that the platform has limited customization for specific outreach campaigns. In contrast, a specialized tool like Opnbx may offer more granular control over certain lead generation parameters.
• The tool's wide range of features can sometimes make simple tasks feel complicated. In comparison, Opnbx provides a more direct workflow for teams focused only on lead generation.

Pricing and Cost-Effectiveness

HubSpot Sales Hub offers transparent pricing with plans at $20, $100, and $150 per seat per month. This provides clear cost predictability, unlike Opnbx's custom quote model. For detailed plan information, visit HubSpot's official website.

Which One Should You Go With?

Choosing the right Opnbx alternative depends on many variables specific to your business needs. This guide shared several options to help you compare features and find a suitable fit for your team.

If your goal is to add digital workers to your sales process, consider 11x. Its autonomous agents manage prospecting, outreach, and CRM updates. This approach allows your sales team to focus on closing deals and other high-value activities instead of manual tasks.