# Plus AI vs Riff

> Plus AI: Create and edit presentations with AI directly inside PowerPoint and Google Slides
> Riff: Draft fresh replies, DMs and posts for X, LinkedIn, Facebook and Instagram on-device

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

## Verdict

Plus AI and Riff are both Productivity tools. Only Riff has a free plan or trial. Only Plus AI is available on Web and offers an API. Only Riff is available on Chrome Extension.

### Choose Plus AI if

- You want a tool built for Teams that already work in PowerPoint or Google Slides and want AI generation and editing without switching tools.
- Works inside PowerPoint and Google Slides, so decks stay in native, editable formats.
- Accepts documents (PDF, docx, text) as source material for decks.

### 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

| | Plus AI | Riff |
| --- | --- | --- |
| Pricing model | Free trial | Free |
| Free plan or trial | No | Yes |
| Starting price | $15 | $0 |

## Features

| Feature | Plus AI | Riff |
| --- | --- | --- |
| Remix | Yes | Not listed |
| Visuals | Yes | Not listed |
| Custom branding | Yes | Not listed |
| Multilingual output | Yes | Not listed |
| Native file output | Yes | Not listed |
| Presentation Agent API and MCP server | Yes | Not listed |
| Prompt-to-deck generation | Yes | Not listed |
| Slide editing | 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 | Plus AI | Riff |
| --- | --- | --- |
| Web | Yes | No |
| Windows | No | No |
| macOS | No | No |
| iOS | No | No |
| Android | No | No |
| API | Yes | No |
| Browser Extension | No | No |
| Chrome Extension | No | Yes |

## Plus AI strengths

- Works inside PowerPoint and Google Slides, so decks stay in native, editable formats.
- Accepts documents (PDF, docx, text) as source material for decks.
- Remix feature restyles existing slides rather than only generating new ones.
- Offers an API and MCP server for use from other AI tools and agents.
- Company reports SOC 2 Type II compliance.

## Plus AI limitations

- No permanent free tier; a credit card is required to start the 7-day trial.
- Credit-based limits (1,500 to 6,000 per month) mean heavy users may need a higher tier, and Max costs $240 per month.
- Custom slide masters are limited to the Enterprise plan.
- Requires PowerPoint or Google Slides; there is no standalone mobile app.

## 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 Plus AI better than Riff?**

It depends on your workflow. Plus AI is built for Teams that already work in PowerPoint or Google Slides and want AI generation and editing without switching tools. Riff is built for writing quick replies and comments on social posts.

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

Plus AI: Create and edit presentations with AI directly inside PowerPoint and Google Slides. Riff: Draft fresh replies, DMs and posts for X, LinkedIn, Facebook and Instagram on-device.

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

Riff has a free plan or trial; Plus AI is paid only.

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

Plus AI starts at $15 and Riff starts at $0. See the pricing table above for what each tier includes.