Freebuff review: free and ad-funded, but not "free tokens"
Freebuff's own pages describe a free, ad-funded coding agent with desktop, CLI, web, cloud and chat products. Access is counted in sessions and Freebucks. An Android app exists; iOS is listed as coming soon.
Facts checked October 13, 2026
Freebuff describes itself as a free coding agent funded by ads. Access is counted in daily sessions and Freebucks, not in free tokens. There is an Android app on Google Play, and iOS is listed as coming soon. This is a documentation review, not a hands-on test.
What the pages say it is
Freebuff's own pages call it "the only 100% free powerful coding agent" and say "$0 forever, funded by ads." The repository README lists five products: Desktop (parallel agents run locally), CLI (installed with npm install -g freebuff), Web (full-stack apps), Cloud (agents on a GitHub repository) and Chat (research). It says Freebuff is built on Codebuff, an open multi-agent framework. Sources: homepage, README.
The homepage offers desktop downloads for macOS (Apple silicon and Intel), Windows (64-bit, Arm64 and older PCs) and Linux AppImage (x86_64 and Arm64). The README adds that Desktop can run locally installed Claude Code and Codex agents with your existing provider account. Those models are separate from Freebuff's included catalog.
What "free" means in the fine print
The README does not say free tokens. It says text ads support access to the included models and that access is counted in daily sessions. For limited access it states an allowance of 25 Freebucks a day, or 20 on a VPN or proxy. Five models are listed as unmetered at full access: GLM 5.3 Flash, DeepSeek V4.1 Flash, MiMo 2.6 Flash, Solar Mini 4 and Solar Pro 4. Other models draw on daily sessions, and some are limited to paid plans or to certain regions. Referrals and bounties earn extra sessions on top of the free daily allowance.
That is the README as I read it on October 13. It also says availability and limits depend on access tier, product and current capacity, so any number here can go stale quickly. Source: README.
PC and mobile: Android yes, iOS not yet
Desktop covers three operating systems, and there is a terminal CLI. Mobile exists too. An earlier version of this review said I found no native mobile app. That was out of date. The App Builder page has a Download for mobile menu, and its Android entry links to a Google Play listing titled "Freebuff: AI Coding Agent", marked as containing ads and as updated October 9, 2026.
The listing describes AI chat and cloud coding sessions against your own GitHub repositories. That is a different job from Desktop's local parallel agents. The iOS entry in the same menu reads "Coming soon", and I found no App Store listing. The Play description says "your iPhone and iPad", which I read as a slip in the listing, not as evidence of an iOS app. I did not install the app. Its developer-provided data safety section says no data is shared with third parties and that app activity and app info and performance data may be collected.
Data, ads and a stealth model
The README says prompts, messages, agent traces, code, files and repository data are used to provide Freebuff, and that prompts and messages may be analyzed to personalize ads. Separately uploaded files and connected repositories are not given to advertising providers, though restricted partners may evaluate connected Cloud repositories. Models or features labeled as possibly using data for AI training may keep submissions to develop and improve AI models.
One beta model, Space Bunny Alpha, is described as a stealth model from an anonymous provider that retains prompts. The README also says models may still be served from a quantized Q8_0 build. The launch post says ads are small text ads shown between agent turns, not inside generated code (launch post). Read the privacy policy before pointing any agent at private code.
Where the sources disagree
First, the launch post (updated October 9) names an older model list and describes limited mode as one model with six one-hour sessions a day. The README names a newer catalog and Freebucks. I treat the README as current and the launch post as partly out of date.
Second, the license. The GitHub page shows Apache License 2.0, while the npm package page shows MIT, and its repository field points to a different repository name. I am not picking one answer. Check the LICENSE file of the exact thing you install.
My assessment
Analysis, not a test result: as documented, the offer is real. It is a free tier funded by ads, with several models that do not count against a daily limit. The trade is data and ads, not money. For public or throwaway projects that trade looks reasonable. For private repositories the data terms matter more than the price, and the limited-access mode used in other regions or on a VPN is much narrower than the full one.
I did not run Freebuff, so I say nothing about the quality of its code or the speed of its agents.
Invite link
This is an invite/referral link: https://freebuff.com/?ref=ref-9a42be85-c404-44cc-b80d-5015ec4a6856. If you sign up through it, this blog may earn extra sessions, since the README says referrals earn extra sessions. I did not test how an invite is credited. The product also works without it: freebuff.com.