Riff is a free Chrome extension that drafts social media replies, posts and DMs on X, LinkedIn, Facebook and Instagram. Drafts are written on-device with Chrome's built-in Gemini Nano, so nothing leaves your device. No account, no API key.
How Riff compares with its closest alternatives
4 of the 5 closest alternatives have a free plan, as Riff does. Among the 5 that list a starting price, the cheapest is Sassbook Fiction Writer at $15 a month and the median is $29. 1 of the 5 offers an API, as Riff does. Riff offers a browser extension. Of the alternatives, 2 offer a browser extension. The alternatives were founded between 2006 and 2022. The alternatives with a known headquarters are in Australia and the United States.
Market position · Writing
How Riff compares in Writing
Riff has low opportunity and sits in the middle third of 329 live Writing tools on FalcoScan. Across Writing, the average opportunity score is 39.5 and the average saturation score 64.8. FalcoScan rates Riff's own market position as contested. 23 of the 329 operating Writing tools have hot momentum, and FalcoScan has recorded 20 shutdowns in the category.
The closest alternatives to Riff that are still running, matched on the AI capabilities, uses and audience they share, are Writecream, Kleo, Smartwriter AI, Sassbook Fiction Writer, and Hubspot AI.
Is Riff still running?
Yes. As of 2 November 2026, FalcoScan lists Riff as operating at riffreply.com.
Does Riff have an API?
Yes. Riff offers an API.
Who is Riff for?
Riff is built for marketers, founders, and creators.
How do I sign in to Riff?
Sign in on Riff's own website, riffreply.com. FalcoScan reviews Riff but does not run its accounts, so logins, passwords and billing are handled by Riff directly.