# Fin vs Plain

> Fin: AI customer agent that resolves support conversations across chat, email and voice, billed per outcome
> Plain: AI-powered support platform for B2B teams, unifying Slack, email and chat in one workspace

- Fin profile: https://finderatlas.com/tools/fin
- Plain profile: https://finderatlas.com/tools/plain
- Comparison page: https://finderatlas.com/compare/fin-vs-plain
- Last reviewed: November 2026

## Verdict

Fin is listed under Customer Support and Plain under Help Desk Software. Fin scores higher in FinderAtlas's editorial review (8.2 vs 7.9 out of 10), led by feature depth and value for money. Neither has a free plan.

### Choose Fin if

- You want a tool built for automating high-volume support conversations with usage-based pricing on Intercom or an existing helpdesk.
- Outcome-based pricing at $0.99 means no per-seat fee for Fin itself on non-Intercom helpdesks.
- Works with existing helpdesks (Salesforce, Zendesk, HubSpot, Freshdesk) as well as Intercom.

### Choose Plain if

- You want a tool built for Teams that support business customers through shared Slack or Teams channels and want AI triage, routing and an API-first setup.
- Built around B2B support, with Slack, Teams and Discord channels alongside email and chat.
- Ari and Sidekick AI agents are included from the entry plan.

## Pricing

| | Fin | Plain |
| --- | --- | --- |
| Pricing model | Free trial | Free trial |
| Free plan or trial | No | No |
| Starting price | $0.99 | $45 |

## Features

| Feature | Fin | Plain |
| --- | --- | --- |
| Fin Procedures | Yes | Not listed |
| Multi-channel support | Yes | Not listed |
| Four agent roles | Yes | Not listed |
| Proprietary models | Yes | Not listed |
| Self-managed configuration | Yes | Not listed |
| Testing and observability | Yes | Not listed |
| Fin Operator | Yes | Not listed |
| Data connectors and MCP | Yes | Not listed |
| Security and compliance | Yes | Not listed |
| Multichannel Inbox | Not listed | Yes |
| Ari AI Agent | Not listed | Yes |
| Sidekick | Not listed | Yes |
| Workflows | Not listed | Yes |
| Insights | Not listed | Yes |
| Bring Your Own Agents | Not listed | Yes |
| API | Limited | Yes |
| Help Center and Knowledge Base | Not listed | Yes |

## Platforms

| Platform | Fin | Plain |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | No | No |
| Android | No | No |
| API | Yes | Yes |
| Browser Extension | No | No |

## Fin strengths

- Outcome-based pricing at $0.99 means no per-seat fee for Fin itself on non-Intercom helpdesks.
- Works with existing helpdesks (Salesforce, Zendesk, HubSpot, Freshdesk) as well as Intercom.
- Procedures can take actions such as refunds and account updates, not only answer questions.
- 14-day free trial with unlimited outcomes and no credit card.
- Broad connector list plus MCP and REST API options.
- Simulations and regression testing let teams check changes before release.

## Fin limitations

- Costs scale with resolved volume, so spend is harder to predict than a flat subscription.
- Operator, CX Score and Monitors need the Pro add-on from $100 per month; Fin Voice is sales-only with custom pricing.
- The non-Intercom plan has a 50 outcome per month minimum.
- The Fin API Platform is limited to customers with $250k or more annual spend, and custom API integrations require a Professional or Enterprise plan.

## Plain strengths

- Built around B2B support, with Slack, Teams and Discord channels alongside email and chat.
- Ari and Sidekick AI agents are included from the entry plan.
- API-first design allows custom workflows and embedding.
- 7-day trial without a credit card, plus a 50% startup discount.
- Enterprise options include SSO, SCIM and HIPAA on the Frontier plan.

## Plain limitations

- No permanently free plan; paid plans start at $45 per user per month.
- AI usage is metered in credits (1,000 per month on Foundation), which makes costs harder to predict.
- Microsoft Teams and CRM integrations require the $99 Horizon plan.
- No iOS or Android app was found.

## FAQ

**Is Fin better than Plain?**

It depends on your workflow. Fin is built for automating high-volume support conversations with usage-based pricing on Intercom or an existing helpdesk. Plain is built for Teams that support business customers through shared Slack or Teams channels and want AI triage, routing and an API-first setup.

**What are the key feature differences between Fin and Plain?**

Fin: AI customer agent that resolves support conversations across chat, email and voice, billed per outcome. Plain: AI-powered support platform for B2B teams, unifying Slack, email and chat in one workspace.

**Does Fin or Plain have a free plan?**

Neither has a free plan. Both Fin and Plain are paid products.

**Which is cheaper, Fin or Plain?**

Fin starts at $0.99 and Plain starts at $45. See the pricing table above for what each tier includes.