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Side-by-side comparison · Sales & Customer Support

Apollo.io vs Freshdesk 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

Freshdesk

3.8

From $19/agent/mo

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.

Pick it if: Small and mid-size businesses that handle customer questions by email, chat and phone and need a proper ticket system.

Best overall

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

Overview

AttributeApollo.ioFreshdeskRetell AI
In one lineB2B contact database with emails and phone numbers, plus sequences to reach them.Helpdesk for email, chat and phone support, with Freddy AI to answer and assist.AI phone agents that answer calls, book appointments and make outbound calls.
Pricing modelFreemiumPaidPaid
Starting price$49/seat/mo$19/agent/moAbout $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.ioFreshdeskRetell AI
Overall rating4.03.84.1Winner
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
4.0
4.5
Output qualityHow good the results are before you fix them.
3.0
3.5
4.5
Value for moneyWhat you get for the price, including the free plan.
4.0
3.5
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.ioFreshdeskRetell AI
Access & platform
Free plan Yes No No
Mobile app Yes Yes–
Desktop app– No–
Browser extension 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 Yes
Understands images–––
Makes images No No No
Makes video No No No
Writes code– No–
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.ioFreshdeskRetell AI
Plans

Free

Free

Founders testing outbound.

Growth

$19/agent/mo billed yearly

Small teams moving off a shared inbox.

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.

ProOur pick

$55/agent/mo billed yearly

Growing teams that need routing and deadlines.

Enterprise

Custom

High call volumes and compliance needs.

ProfessionalOur pick

$79/seat/mo billed yearly

Full-time reps.

Enterprise

$89/agent/mo billed yearly

Larger support teams with admin and security needs.

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.Growth is fine for a few agents answering email. Most growing teams end up on Pro for routing, SLAs and the option to add Copilot. Budget for extra AI Agent sessions once the first 500 are used.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.ioFreshdeskRetell AI
Standout features
  • Contact database
  • Email sequences
  • Chrome extension
  • Dialer and call recording
  • AI research and scoring
  • Enrichment
  • Ticketing and shared inbox
  • Freddy AI Agent
  • Freddy AI Copilot
  • Help centre and portal
  • Automations and SLAs
  • Reports
  • Phone agents
  • Flow builder
  • Appointment booking
  • Knowledge base
  • Batch calling
  • Call analysis

Pros and cons

AttributeApollo.ioFreshdeskRetell 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
  • Cheaper and quicker to set up than Zendesk
  • Clean, easy agent inbox that new staff pick up fast
  • Large marketplace of apps and integrations
  • AI agent included to start, without a separate contract
  • Public API for custom workflows
  • 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
  • 2026 price rise, and the free plan is now only a six-month program for one or two agents
  • Useful features like custom dashboards and smart routing are locked to Pro and above
  • Freddy AI costs add up: sessions billed in packs and Copilot priced per agent
  • AI agent needs tuning and handles multi-step conversations less well than Intercom
  • Mixed reviews of Freshworks support and billing when issues arise
  • 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.ioFreshdeskRetell AI
Best for
  • Finding business emails and phone numbers
  • Building B2B lead lists
  • Simple cold email sequences
  • Cheaper alternative to ZoomInfo
  • Turning a support inbox into tracked tickets
  • Building a help centre and customer portal
  • Deflecting repeat questions with an AI agent
  • Teams of 3 to 100 support agents
  • 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
  • Customer support teams
  • E-commerce stores
  • SaaS companies
  • IT and service desks
  • Small business owners
  • Clinics
  • Voice AI agencies
  • Customer service teams
  • Developers

Questions people ask

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

Retell AI scores highest overall in our ratings (Apollo.io 4.0/5, Freshdesk 3.8/5 and Retell AI 4.1/5). Apollo.io is best for finding business emails and phone numbers and Building B2B lead lists. Freshdesk is best for turning a support inbox into tracked tickets and building a help centre and customer portal. Retell AI is best for AI receptionist for a small business and booking appointments by phone.

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

Apollo.io: There's a free plan, and paid plans start at $49/seat/mo. Freshdesk: There's no free plan. Paid plans start at $19/agent/mo. Retell AI: There's no free plan. Paid plans start at About $0.07–$0.31/min.

Which is easier to use, Apollo.io, Freshdesk 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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