Side-by-side comparison · Sales & Customer Support
Ada vs Intercom 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.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Mid-sized and large businesses with high support volumes that want an AI agent on top of their existing helpdesk.
Pick it if: Online businesses and software companies with a support team that wants an AI agent to take the first pass at every question.
Pick it if: Large consumer brands that want an AI agent to handle a big share of their customer conversations end to end.
Overview
| Attribute | Ada | Intercom | Sierra |
|---|---|---|---|
| In one line | AI agents that resolve customer service requests across chat, email and phone. | Customer support inbox, help centre and chat, with the Fin AI agent answering first. | Builds and runs AI customer service agents for big brands, across chat, email and phone. |
| Pricing model | Paid | Paid | Paid |
| Starting price | See website | $0.99 per outcome | See 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.
| Attribute | Ada | Intercom | Sierra |
|---|---|---|---|
| Overall rating | 3.7 | 4.2Winner | 3.9 |
| Ease of useHow quickly someone non-technical gets value from it. | 3.5 | 4.0 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.0 | 5.0 | 4.5 |
| Output qualityHow good the results are before you fix them. | 4.0 | 4.5 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 3.0 | 3.0 | 3.0 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 4.5 | 4.5 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Ada | Intercom | Sierra |
|---|---|---|---|
| Access & platform | |||
| Free plan | No | No | No |
| Mobile app | – | Yes | – |
| Desktop app | – | – | – |
| Browser extension | – | – | – |
| 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 | Yes |
| Understands images | – | Yes | – |
| 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 | Yes | Yes | Yes |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 7/ 17 | 10/ 17 | 7/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Ada | Intercom | Sierra |
|---|---|---|---|
| Plans | CustomOur pick Custom Businesses with enough volume to justify an enterprise contract. | Fin on its own $0.99 per outcome, monthly minimum Teams happy with their current helpdesk who want the AI agent only. | EnterpriseOur pick Custom Large companies with high conversation volumes. |
Essential $29/seat/mo, plus $0.99 per Fin outcome Small teams starting out with live chat and an AI agent. | |||
AdvancedOur pick $85/seat/mo, plus $0.99 per Fin outcome Growing support teams that need automation and several inboxes. | |||
Expert $132/seat/mo, plus $0.99 per Fin outcome Larger teams with security and multi-brand needs. | |||
| Which plan to pick | There's only a custom quote. Ask whether you'll be charged per conversation or per resolution, since per-conversation pricing charges you even when the agent doesn't solve the problem. | Start the 14-day trial and see how many conversations Fin handles, because that number drives the bill more than seats do. Most teams with more than a couple of agents end up on Advanced for the workflows. If you already run Zendesk or Salesforce and like it, try Fin on its own first. | 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
| Attribute | Ada | Intercom | Sierra |
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Pros and cons
| Attribute | Ada | Intercom | Sierra |
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Who each one is for
| Attribute | Ada | Intercom | Sierra |
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Questions people ask
Which is better, Ada, Intercom or Sierra?
Intercom scores highest overall in our ratings (Ada 3.7/5, Intercom 4.2/5 and Sierra 3.9/5). Ada is best for automating common support conversations and AI support across chat, email and voice. Intercom is best for answering common customer questions automatically and website and in-app live chat. Sierra is best for high-volume customer service at large brands and AI phone agents that take real actions.
Which is cheaper, Ada, Intercom or Sierra?
Ada: Pricing isn't published; check the vendor's site for a quote. Intercom: There's no free plan. Paid plans start at $0.99 per outcome. Sierra: Pricing isn't published; check the vendor's site for a quote.
Which is easier to use, Ada, Intercom or Sierra?
Intercom rates highest for ease of use in our scores. Online businesses and software companies with a support team that wants an AI agent to take the first pass at every question.
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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