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Side-by-side comparison · Sales & Customer Support

Gong vs Outreach vs Sierra

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

Best overall

Gong

4.0

Free to start

Outreach

3.7

Free to start

Sierra

3.9

Free to start

Comparing 3 tools, the maximum.

At a glance

Gong4.0
Best overallEasiest to use

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

Pick it if: Sales teams at growing and larger companies that want sequences, calls, deals and forecasting in one platform.

Pick it if: Large consumer brands that want an AI agent to handle a big share of their customer conversations end to end.

Overview

AttributeGongOutreachSierra
In one lineRecords and analyses sales calls and emails to coach reps and forecast deals.Sales engagement platform for sequences, calls, deals and forecasting, with AI agents.Builds and runs AI customer service agents for big brands, across chat, email and phone.
Pricing modelPaidPaidPaid
Starting priceSee websiteSee websiteSee website
Free plan No No No
Works with Claude Code Yes Yes No

Rating breakdown

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

AttributeGongOutreachSierra
Overall rating4.0Winner3.73.9
Ease of useHow quickly someone non-technical gets value from it.
4.0
3.5
3.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
5.0
4.5
4.5
Output qualityHow good the results are before you fix them.
4.5
4.0
4.5
Value for moneyWhat you get for the price, including the free plan.
2.5
3.0
3.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
3.5
4.5

Feature comparison

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

AttributeGongOutreachSierra
Access & platform
Free plan No No No
Mobile app Yes 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–––
Runs agents or automations Yes Yes Yes
Learns your brand or style–– Yes
Works in many languages Yes– Yes
Capabilities score8/ 177/ 177/ 17

Pricing

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

AttributeGongOutreachSierra
Plans

Platform fee

Custom (billed yearly)

Every Gong customer pays this, scaled to team size.

Amplify Essentials

Custom

Teams wanting call insights and coaching first.

EnterpriseOur pick

Custom

Large companies with high conversation volumes.

Per-user licenceOur pick

Custom per user (billed yearly)

Each rep or manager who records and reviews calls.

Amplify CoreOur pick

Custom

Teams building pipeline with outbound sequences.

Add-ons (Engage, Forecast, Enable)

Custom

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

Amplify Plus

Custom

Teams wanting outbound, calls and deal management together.

Amplify Pro

Custom

Larger sales orgs that forecast in Outreach.

Which plan to pickStart 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.Most teams buying for outbound should start at Core. Only move up to Plus or Pro if you will actually run deals and forecasts in Outreach rather than your CRM.There is one route: talk to Sierra's sales team. Agree clearly what counts as an outcome you pay for, and what setup and services cost, before you sign.

Key features

AttributeGongOutreachSierra
Standout features
  • Call recording and transcripts
  • Deal insights
  • AI summaries and follow-ups
  • Coaching
  • Forecasting
  • Ask anything
  • Sequences
  • Built-in dialer
  • AI agents
  • Deals and forecasting
  • CRM sync
  • Agent Studio
  • Ghostwriter
  • One agent, every channel
  • Connected to your systems
  • Insights and testing

Pros and cons

AttributeGongOutreachSierra
Pros
  • 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
  • Covers sequences, calls, deals and forecasting in one platform
  • Strong Salesforce and HubSpot sync
  • AI agents save reps research and writing time
  • Mature reporting for sales managers
  • Agents take real actions, not just answer questions
  • Covers voice as well as chat, SMS, WhatsApp and email
  • Outcome-based pricing means you pay for results, not seats
  • Proven at very large brands
Cons
  • 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
  • No public pricing, no free plan and yearly contracts
  • Setup and upkeep need a dedicated admin
  • Can feel heavy and cluttered for small teams
  • AI credits add another thing to budget and track
  • No public pricing; estimates put it out of reach for most small and mid-sized businesses
  • No trial or self-serve option, so you are committing to a sales process and a project
  • Few independent reviews to check claims against
  • You depend on Sierra's team for much of the build

Who each one is for

AttributeGongOutreachSierra
Best for
  • Coaching reps from real call recordings
  • Spotting at-risk deals early
  • Sales forecasting and pipeline reviews
  • Learning why deals are won or lost
  • Running outbound sequences across a sales team
  • Daily task lists for reps
  • Pipeline reviews and forecasting
  • AI-drafted, personalised sales emails
  • High-volume customer service at large brands
  • AI phone agents that take real actions
  • Returns, bookings and account changes
  • Saving cancellations and handling retention calls
You'll find it used by
  • Sales leaders
  • Account executives
  • Revenue operations
  • Customer success teams
  • Sales development reps
  • Account executives
  • Sales managers
  • Revenue operations
  • Enterprise support teams
  • Contact centres
  • Retail brands
  • Banks and insurers
  • Telcos

Questions people ask

Which is better, Gong, Outreach or Sierra?

Gong scores highest overall in our ratings (Gong 4.0/5, Outreach 3.7/5 and Sierra 3.9/5). Gong is best for coaching reps from real call recordings and spotting at-risk deals early. Outreach is best for running outbound sequences across a sales team and daily task lists for reps. Sierra is best for high-volume customer service at large brands and AI phone agents that take real actions.

Which is cheaper, Gong, Outreach or Sierra?

Gong: Pricing isn't published; check the vendor's site for a quote. Outreach: Pricing isn't published; check the vendor's site for a quote. Sierra: Pricing isn't published; check the vendor's site for a quote.

Which is easier to use, Gong, Outreach or Sierra?

Gong rates highest for ease of use in our scores. Sales leaders running a team of reps who want to coach from real calls and forecast deals more accurately.

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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