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Side-by-side comparison · Sales & Customer Support

Hyperbound vs Retell AI vs ZoomInfo

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

Hyperbound

4.1

Free to start

Retell AI

4.1

From About $0.07–$0.31/min

ZoomInfo

3.6

Free to start

Comparing 3 tools, the maximum.

At a glance

Easiest to use

Pick it if: Sales managers and sales training teams onboarding and coaching reps on calls.

Best value

Pick it if: Service businesses and agencies that want an AI receptionist or phone agent without hiring developers.

Pick it if: Mid-size and large B2B sales and marketing teams with a budget for premium contact data.

Overview

AttributeHyperboundRetell AIZoomInfo
In one lineAI sales role-play: practise cold calls and objections with realistic AI buyers.AI phone agents that answer calls, book appointments and make outbound calls.Huge B2B contact database with an AI Copilot that tells your sales reps who to call next.
Pricing modelFreemiumPaidPaid
Starting priceFreeAbout $0.07–$0.31/minSee website
Free plan Yes No No
Works with Claude Code No Yes Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeHyperboundRetell AIZoomInfo
Overall rating4.14.13.6
Ease of useHow quickly someone non-technical gets value from it.
4.5
3.5
3.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.0
4.5
5.0
Output qualityHow good the results are before you fix them.
4.5
4.5
4.0
Value for moneyWhat you get for the price, including the free plan.
3.5
4.0
2.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.0
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeHyperboundRetell AIZoomInfo
Access & platform
Free plan Yes No No
Mobile app–– Yes
Desktop app–––
Browser extension Yes– Yes
API access– Yes Yes
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files– Yes–
Understands images–––
Makes images No No No
Makes video No No No
Writes code No– No
Runs agents or automations Yes Yes Yes
Learns your brand or style–––
Works in many languages– Yes–
Capabilities score6/ 177/ 177/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeHyperboundRetell AIZoomInfo
Plans

Free

Free

Trying AI role-play with a few reps.

Pay as you goOur pick

About $0.07–$0.31/min

Most small businesses and agencies.

Professional

Custom quote, yearly contract

Sales teams that mainly need contact data.

PracticeOur pick

Custom per user

Teams that want reps rehearsing on AI.

Enterprise

Custom

High call volumes and compliance needs.

Copilot AdvancedOur pick

Custom quote, yearly contract

Teams that want AI to tell them who to call.

Perform

Custom per user

Teams that also want real calls scored and coached.

Copilot Enterprise

Custom quote, yearly contract

Large sales organisations.

Which plan to pickRun the free role-plays with two or three reps first. If they keep using them, Practice covers rehearsal; only pay for Perform if you do not already have Gong or another call recorder.Start on pay as you go with the free credits, build one agent for your most common call and test it on your own phone. Talk to sales only once you run thousands of minutes a month.Ask for a trial first and check the data covers your market, especially outside the US. Copilot Advanced is where the AI and buying signals come in, which is most of the reason to pay ZoomInfo prices. Negotiate the renewal terms before you sign, and if your budget is under five figures, look at Apollo instead.

Key features

AttributeHyperboundRetell AIZoomInfo
Standout features
  • AI buyer role-plays
  • Custom personas
  • Scorecards
  • Real call scoring
  • Manager dashboards
  • Phone agents
  • Flow builder
  • Appointment booking
  • Knowledge base
  • Batch calling
  • Call analysis
  • Company and contact search
  • ZoomInfo Copilot
  • Buying signals
  • CRM enrichment
  • Chrome extension
  • Claude connector

Pros and cons

AttributeHyperboundRetell AIZoomInfo
Pros
  • Very realistic AI buyers that react to what you say
  • Useful free plan with ready-made role-plays
  • Clear scoring that shows reps what to fix
  • Saves managers hours of live role-play
  • Natural voices and quick responses
  • Visual builder makes it usable for non-developers
  • Pay per minute with no platform fee
  • Strong reviews from small businesses and agencies
  • Some of the deepest and most accurate B2B data, especially in the US
  • Buying signals show who is in the market right now
  • Copilot turns the data into ranked accounts and talking points
  • Native connector in Claude and other AI apps
  • Connects to every major CRM
Cons
  • No public pricing for team plans
  • Custom personas and scorecards take setup time
  • Built for sales teams, not individuals practising on their own
  • Per-minute cost varies a lot with your model and voice choices
  • Takes testing to handle real callers reliably
  • Some users want more voice and customisation options
  • No public pricing, and real contracts often run $30,000 a year or more
  • Yearly contracts only, with frequent complaints about renewals
  • Weaker data outside North America
  • Credits limit how many contacts you can export
  • Lots of features to learn before it pays off

Who each one is for

AttributeHyperboundRetell AIZoomInfo
Best for
  • Practising cold calls before going live
  • Onboarding new sales reps faster
  • Drilling objection handling
  • Scoring calls against a scorecard
  • AI receptionist for a small business
  • Booking appointments by phone
  • Answering after-hours and overflow calls
  • Outbound reminder and follow-up calls
  • Large B2B sales teams prospecting every day
  • Finding direct dials and mobile numbers for decision makers
  • Spotting companies that are ready to buy
  • Keeping a big CRM's data clean and up to date
You'll find it used by
  • Sales development reps
  • Account executives
  • Sales managers
  • Sales enablement teams
  • Small business owners
  • Clinics
  • Voice AI agencies
  • Customer service teams
  • Developers
  • Sales teams
  • Marketing teams
  • RevOps
  • Recruiters

Questions people ask

Which is better, Hyperbound, Retell AI or ZoomInfo?

They tie on our overall rating (Hyperbound 4.1/5, Retell AI 4.1/5 and ZoomInfo 3.6/5). Hyperbound is best for practising cold calls before going live and onboarding new sales reps faster. Retell AI is best for AI receptionist for a small business and booking appointments by phone. ZoomInfo is best for Large B2B sales teams prospecting every day and finding direct dials and mobile numbers for decision makers.

Which is cheaper, Hyperbound, Retell AI or ZoomInfo?

Hyperbound: It's free to use. Retell AI: There's no free plan. Paid plans start at About $0.07–$0.31/min. ZoomInfo: Pricing isn't published; check the vendor's site for a quote.

Which is easier to use, Hyperbound, Retell AI or ZoomInfo?

Hyperbound rates highest for ease of use in our scores. Sales managers and sales training teams onboarding and coaching reps on calls.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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