Compare · ReplyKit vs Zuiti
Zuiti is an open-source X reply extension where you bring your own AI key. ReplyKit runs on Claude Sonnet with nothing to set up. Which fits you.
Pick Zuiti if
You already have an API key, you want the code to be open source, and you are happy to copy and paste each reply.
Zuiti is an open-source Chrome extension for X: a button beside the reply box drafts a reply with your own API key for Gemini, OpenAI, Claude or DeepSeek, in eight styles.
Pick ReplyKit if
You want nothing to configure, three drafts per click typed straight into the reply box, help finding posts, and LinkedIn and Reddit too.
Add to Chrome, free| ReplyKit | Zuiti | |
|---|---|---|
| Core job | Find posts worth replying to, then draft three replies | Draft a reply to the post you are on |
| Setup | Install, no API key, no account to start | Add your own API key for the provider you pick |
| Model | Claude Sonnet on every plan, free included | Gemini, OpenAI, Claude or DeepSeek, with your key |
| Drafts per click | Three, each with a different angle | One, in the style you pick (eight styles, including a custom prompt) |
| Platforms | X, LinkedIn, Reddit | X |
| Into the composer | Inserted into X's reply box, ready to edit | Copy, then paste it yourself |
| Price | Free: 10 replies on your first day, then 3 a day without an account, 5 a day with a free sign-in. Pro: €6.99/month for 1,000 replies a month plus the Radar list. | The extension is free; you pay your AI provider for usage |
Our take
Written by the ReplyKit developer, so read it as such. Facts about Zuiti come from their own site. If something here is out of date, email contact@replykit.eu and it gets fixed.
Zuiti is a good pick for developers: open source, your own key, your own provider, and the data goes straight from your browser to that provider. If that is what you want, ReplyKit is not it.
ReplyKit is for people who want the reply without the setup. The prompt is tuned per platform against the usual AI tells, the drafts land in the reply box, and Radar tells you which posts are worth the reply in the first place.
Built by · One person
There is no company behind this, just one developer who reads every message. If ReplyKit does not fit how you work, a feature, a platform, a different style of reply, say so. Requests from users decide what ships next.
Prefer email? contact@replykit.eu
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