# Fireply AI vs Riff

> Fireply AI: Managed AI agent that writes and posts replies on X in your own voice
> Riff: Draft fresh replies, DMs and posts for X, LinkedIn, Facebook and Instagram on-device

- Fireply AI profile: https://finderatlas.com/tools/fireply-ai
- Riff profile: https://finderatlas.com/tools/riff
- Comparison page: https://finderatlas.com/compare/fireply-ai-vs-riff
- Last reviewed: October 2026

## Verdict

Fireply AI is listed under Sales & Marketing AI and Riff under Productivity. Riff scores higher in FinderAtlas's editorial review (7.8 vs 7.5 out of 10). Both have a free plan or trial. Only Fireply AI is available on Web. Only Riff is available on Chrome Extension.

### Choose Fireply AI if

- You want a tool built for growing an X audience through steady replies on targeted accounts.
- Fully managed workflow: persona, targeting and posting are handled after about five minutes of onboarding.
- Uses X's contributor access, so no password or login is shared.

### Choose Riff if

- You want a tool built for writing quick replies and comments on social posts.
- Free, with no account, subscription or API key.
- Generation runs on-device with Gemini Nano, so text is not sent to a server.

## Pricing

| | Fireply AI | Riff |
| --- | --- | --- |
| Pricing model | Free trial | Free |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Fireply AI | Riff |
| --- | --- | --- |
| Persona from your posts | Yes | Not listed |
| X List targeting | Yes | Not listed |
| Context-aware replies | Yes | Not listed |
| Content rules | Yes | Not listed |
| Live data contexts | Yes | Not listed |
| Contributor-based posting | Yes | Not listed |
| Scheduling window | Yes | Not listed |
| Pause and revoke controls | Yes | Not listed |
| Affiliate program | Yes | Not listed |
| On-device AI | Not listed | Yes |
| Replies and comments | Not listed | Yes |
| DM replies and first messages | Not listed | Yes |
| Riff a post | Not listed | Yes |
| Dials | Not listed | Yes |
| Repurposing | Not listed | Yes |
| Voices and presets | Not listed | Yes |
| Never sends for you | Not listed | Yes |

## Platforms

| Platform | Fireply AI | Riff |
| --- | --- | --- |
| Web | Yes | No |
| Windows | No | No |
| macOS | No | No |
| iOS | No | No |
| Android | No | No |
| API | No | No |
| Browser Extension | No | No |
| Chrome Extension | No | Yes |

## Fireply AI strengths

- Fully managed workflow: persona, targeting and posting are handled after about five minutes of onboarding
- Uses X's contributor access, so no password or login is shared
- Editable persona and content rules give control over tone and topics
- Optional live data contexts suit crypto and market-related accounts
- Flat monthly pricing with a 40-reply trial that needs no card

## Fireply AI limitations

- Replies are posted by a separate contributor handle from Fireply-managed browser infrastructure, which sits in a gray area of X's automation rules
- No refunds for the current billing cycle once it has started
- Supports X only and has no public API or mobile app
- Young product with no independent user reviews found (Capterra shows none) and no named company or team on its site

## Riff strengths

- Free, with no account, subscription or API key
- Generation runs on-device with Gemini Nano, so text is not sent to a server
- Covers replies, DMs, posts and X threads in one side panel
- Never presses send, which keeps the user in control
- Dials for tone, pitch and length, plus a Fresh score to avoid repetitive openings

## Riff limitations

- Requires desktop Chrome 138 or newer and a one-time Gemini Nano download
- Output quality is limited by the small on-device model
- Chrome only; no Firefox, Safari or mobile support
- Very new, with few reviews on the Chrome Web Store

## FAQ

**Is Fireply AI better than Riff?**

It depends on your workflow. Fireply AI is built for growing an X audience through steady replies on targeted accounts. Riff is built for writing quick replies and comments on social posts.

**What are the key feature differences between Fireply AI and Riff?**

Fireply AI: Managed AI agent that writes and posts replies on X in your own voice. Riff: Draft fresh replies, DMs and posts for X, LinkedIn, Facebook and Instagram on-device.

**Does Fireply AI or Riff have a free plan?**

Yes, both do. Fireply AI is free trial and Riff is free, and each has a free plan or trial.

**Which is cheaper, Fireply AI or Riff?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.