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Side-by-side comparison · Sales & Customer Support

Apollo.io vs Gong vs Retell AI

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

Apollo.io

4.0

From $49/seat/mo

Gong

4.0

Free to start

Best overall

Retell AI

4.1

From About $0.07–$0.31/min

Comparing 3 tools, the maximum.

At a glance

Easiest to use

Pick it if: Founders, small sales teams and marketers who need to find B2B contacts and email them.

Gong4.0

Pick it if: Sales leaders running a team of reps who want to coach from real calls and forecast deals more accurately.

Best overall

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

Overview

AttributeApollo.ioGongRetell AI
In one lineB2B contact database with emails and phone numbers, plus sequences to reach them.Records and analyses sales calls and emails to coach reps and forecast deals.AI phone agents that answer calls, book appointments and make outbound calls.
Pricing modelFreemiumPaidPaid
Starting price$49/seat/moSee websiteAbout $0.07–$0.31/min
Free plan Yes No No
Works with Claude Code Yes Yes Yes

Rating breakdown

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

AttributeApollo.ioGongRetell AI
Overall rating4.04.04.1Winner
Ease of useHow quickly someone non-technical gets value from it.
4.5
4.0
3.5
FeaturesHow completely it covers its own job, and how well the pieces fit together.
4.5
5.0
4.5
Output qualityHow good the results are before you fix them.
3.0
4.5
4.5
Value for moneyWhat you get for the price, including the free plan.
4.0
2.5
4.0
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.

AttributeApollo.ioGongRetell AI
Access & platform
Free plan Yes No No
Mobile app Yes Yes–
Desktop app–––
Browser extension Yes Yes–
API access Yes 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–––
Runs agents or automations Yes Yes Yes
Learns your brand or style–––
Works in many languages– Yes Yes
Capabilities score8/ 178/ 177/ 17

Pricing

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

AttributeApollo.ioGongRetell AI
Plans

Free

Free

Founders testing outbound.

Platform fee

Custom (billed yearly)

Every Gong customer pays this, scaled to team size.

Pay as you goOur pick

About $0.07–$0.31/min

Most small businesses and agencies.

Basic

$49/seat/mo billed yearly

Individual sellers doing regular outbound.

Per-user licenceOur pick

Custom per user (billed yearly)

Each rep or manager who records and reviews calls.

Enterprise

Custom

High call volumes and compliance needs.

ProfessionalOur pick

$79/seat/mo billed yearly

Full-time reps.

Add-ons (Engage, Forecast, Enable)

Custom

Teams that want outreach, forecasting or coaching in Gong too.

Organization

$119/seat/mo billed yearly (min 3 seats)

Sales teams wanting advanced controls.

Which plan to pickStart on Free to check the data covers your market. Basic suits one person prospecting; Professional is worth it if you also call prospects or want AI scoring. Monthly billing costs noticeably more than the yearly prices shown.Start with the core licence for reps who run customer calls and add Forecast or Engage only once the team uses Gong daily. Push back on bundles and multi-year terms during negotiation.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.

Key features

AttributeApollo.ioGongRetell AI
Standout features
  • Contact database
  • Email sequences
  • Chrome extension
  • Dialer and call recording
  • AI research and scoring
  • Enrichment
  • Call recording and transcripts
  • Deal insights
  • AI summaries and follow-ups
  • Coaching
  • Forecasting
  • Ask anything
  • Phone agents
  • Flow builder
  • Appointment booking
  • Knowledge base
  • Batch calling
  • Call analysis

Pros and cons

AttributeApollo.ioGongRetell AI
Pros
  • Generous free plan for getting started
  • Database and outreach in one tool
  • Much cheaper than ZoomInfo
  • Easy to learn for non-technical users
  • Very accurate call analysis and deal warnings
  • Easy for reps: it records and summarises with no extra work
  • Strong coaching tools for managers
  • Wide range of integrations with CRMs and dialers
  • 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
Cons
  • Bounce rates and out-of-date contacts are common complaints
  • Weaker phone and contact data outside the US
  • Credits run out fast and do not roll over
  • Billing disputes and slow support on lower plans
  • Expensive, with a platform fee on top of per-user licences
  • No public pricing and pressure toward multi-year deals and bundles
  • Renewal price increases are a common complaint
  • Small teams often use only a fraction of the features they pay for
  • 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

Who each one is for

AttributeApollo.ioGongRetell AI
Best for
  • Finding business emails and phone numbers
  • Building B2B lead lists
  • Simple cold email sequences
  • Cheaper alternative to ZoomInfo
  • Coaching reps from real call recordings
  • Spotting at-risk deals early
  • Sales forecasting and pipeline reviews
  • Learning why deals are won or lost
  • AI receptionist for a small business
  • Booking appointments by phone
  • Answering after-hours and overflow calls
  • Outbound reminder and follow-up calls
You'll find it used by
  • Founders
  • Sales development reps
  • Account executives
  • Marketers
  • Recruiters
  • Sales leaders
  • Account executives
  • Revenue operations
  • Customer success teams
  • Small business owners
  • Clinics
  • Voice AI agencies
  • Customer service teams
  • Developers

Questions people ask

Which is better, Apollo.io, Gong or Retell AI?

Retell AI scores highest overall in our ratings (Apollo.io 4.0/5, Gong 4.0/5 and Retell AI 4.1/5). Apollo.io is best for finding business emails and phone numbers and Building B2B lead lists. Gong is best for coaching reps from real call recordings and spotting at-risk deals early. Retell AI is best for AI receptionist for a small business and booking appointments by phone.

Which is cheaper, Apollo.io, Gong or Retell AI?

Apollo.io: There's a free plan, and paid plans start at $49/seat/mo. Gong: Pricing isn't published; check the vendor's site for a quote. Retell AI: There's no free plan. Paid plans start at About $0.07–$0.31/min.

Which is easier to use, Apollo.io, Gong or Retell AI?

Apollo.io rates highest for ease of use in our scores. Founders, small sales teams and marketers who need to find B2B contacts and email them.

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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