Hyperbound vs Second Nature vs 100 Dials: price, fit, grounding

Hyperbound, Second Nature and 100 Dials all put a rep on a practice call with an AI buyer. They are built for different buyers and bought in different ways. Hyperbound is a voice-first roleplay platform with real-call scoring, sold per user by quote, strongest on languages, methodology scorecards and large revenue organisations. Second Nature is a video-avatar training platform for enterprise customer-facing teams, including insurance, telco and call centres, sold by demo with no self-serve option. 100 Dials does one thing, cold calls for SDR teams, at a published price of $79 per seat per month, with prospects built from the rep's own target accounts and a free trial that needs no sales call. An SDR floor of two to thirty reps that wants a realistic prospect this week can start 100 Dials today. A revenue org that needs 25 languages, LMS integration and every real call scored should look at Hyperbound. A team that pitches on video with slides should look at Second Nature.

Everything below was checked on each vendor's own website in October 2026. Where we say a price is not published, we mean it was not on the vendor's site on that date. We do not repeat the prices third-party blogs claim for these vendors, because the vendors have not confirmed them.

The comparison in one table

How each is priced, and what that tells you

Hyperbound's pricing page lists a free tier and two paid tiers named Practice and Perform. It says licences are priced per user, with volume discounts based on team size and additional savings for multi-year agreements. There is no number. Second Nature has no pricing page at all. Its demo page promises pricing options tailored to your specific use case, and its FAQ describes an enterprise package that includes five training sessions on setup, content and integration.

Quote-based pricing is how enterprise software is sold, and both products are built for deals where it makes sense: hundreds of seats, procurement, a security review. The words tell you who the product is for. "Multi-year agreements" and "enterprise package" are not aimed at a manager with eight SDRs and a quarter to fix.

100 Dials publishes two plans. Starter is $79 per seat per month and includes 40 calls. Team is $159 per seat per month and includes 100 calls. Annual billing takes 20% off. The trial is 10 calls over 14 days with a work email and no card. A manager can read the pricing page and have a rep on a call in the time it takes to book the other two demos.

What the prospect is built from

This is the row that decides whether reps improve. A rep who runs fifty calls against a generic persona gets fast at a generic call.

Hyperbound builds personas from an ideal customer profile or a prospect's LinkedIn profile, informed by what it describes as analysis of more than two million hours of B2B sales conversations. Its Perform tier also scores real calls, a different job from practice and one neither of the other two does.

Second Nature builds a roleplay from a text description or uploaded material such as a deck or a script. The emphasis is on the content the rep has to deliver, which fits a product launch, a certification or a compliance script.

100 Dials builds the prospect from the rep's real target accounts, and from the team's own call transcripts if you upload them. CSV exports from Gong, Chorus, Fireflies or a dialler are digested into the objections your market raises, in the phrasing it uses, and that digest goes into every persona and into the grader. Our enablement page explains the grounding. The point is that fifty repetitions are repetitions of the call the rep will make on Monday.

What a call feels like

Hyperbound is voice-first across cold, warm, discovery, demo and renewal scenarios. Second Nature is a video call with an avatar, screen sharing and slides, so a rep can practise a demo as well as a conversation. 100 Dials is a live voice cold call with a prospect that interrupts when the rep monologues and decides the outcome from its own closing words.

Difficulty is handled differently. Hyperbound sets it in free text when the persona is built. Second Nature offers persona mood and temperament. 100 Dials has three fixed levels with behavioural briefs: a friendly prospect with time, a busy inbound lead who pushes on timing and budget, and a senior buyer interrupted mid-task who challenges every claim and tries to end the call at least twice. Fixed levels matter to a manager because a seven at level three means the same thing for every rep. Free-text difficulty cannot promise that.

How calls are scored

Hyperbound's scorecards are custom and can follow MEDDPICC, MEDDIC, BANT, Challenger, Sandler or SPIN, which suits an enablement team standardising a methodology across AEs and SDRs. Second Nature evaluates each session on messaging, voice, tone and clarity and supports certifications, which suits content delivery.

100 Dials scores every call on the same six skills, weighted toward what books meetings: the reason for the call, objection handling and the close carry 20% each, the opener and discovery 15%, the value proposition 10%. Each score comes with a rationale quoting the rep's own words, plus statistics the model cannot fudge: talk ratio, longest monologue, questions asked, filler words and time to first objection. The rubric is fixed on purpose. A cold call is a narrow skill and a fixed yardstick is what makes two reps, or one rep a month apart, comparable. If the scorecard has to be MEDDPICC, pick Hyperbound.

Data, hosting and the EU question

All three say customer data is not used to train models. Hyperbound's trust centre lists SOC 2, ISO 27001, HIPAA and a GDPR data processing addendum with an EU subprocessor list. We found no statement of where data is hosted. Second Nature lists SOC 2, ISO 27001 and ISO 27701, and its FAQ says data is stored in a Google Cloud data centre in the Netherlands, though other pages mention Azure, so ask. 100 Dials hosts the database, authentication and file storage in the European Union, runs voice and scoring through providers under contract with no training on your data, deletes from subprocessors within 30 days, and offers a data processing agreement on request. Enterprise customers can pin processing to EU regions. 100 Dials does not advertise a SOC 2 report. If your security questionnaire requires one, that is a real gap today.

Where Hyperbound and Second Nature are the better choice

Hyperbound wins when the team sells in many languages, when the programme spans SDRs, AEs and customer success with different scorecards, when real calls should be scored against the same rubric as practice, or when you need SCORM and LMS integration. Second Nature wins when the people being trained are not SDRs: insurance agents, telco retention teams, anyone whose job is a scripted pitch or a demo on video.

100 Dials wins when the problem is specifically cold calls, the team is small enough that a quote process is more friction than the tool, you want prospects that sound like your market without a services engagement, and EU hosting is a requirement. It loses the moment you need video, languages or methodology scorecards.

So a head of enablement standardising 400 seats on MEDDPICC should shortlist Hyperbound and ask for Perform pricing in writing. A training lead rolling out a product pitch to 2,000 insurance agents should look at Second Nature. A sales manager with six to thirty SDRs should start a 100 Dials trial and judge it on day three: did the reps dial it without being told, and did two managers scoring the same call on paper land within a point of the tool.

Our buyer's guide to AI cold call practice software lists the four things that decide whether reps improve and the demo features that do not. Run any of the three against it before you sign.

The practice-and-feedback method these tools share has a research base, with real limits. We set it out, study by study, on the research page.