Freebuff

Freebuff is a coding agent that connects to a GitHub repository and works through it in a chat and project interface with file, terminal and changes panes. It runs in a browser, as a desktop application and from a terminal, with one account and one plan covering all three surfaces. The distinguishing claim is the business model: the free tier is funded by advertising rather than by a trial, so it includes real model usage without a card. Desktop builds cover Mac on Apple Silicon and Intel, Windows in 64 bit, Arm64 and an older PC variant, and Linux AppImages for x86_64 and Arm64. Usage is metered in a unit the vendor calls Freebucks. Each model carries a price for a one hour session with unlimited messages inside that hour, and the published model menu includes GLM 5.3 Flash, DeepSeek V4.1 Flash, MiMo 2.6 Pro, Gemini 3.8 Flash, Solar Pro 4 and Muse Spark 1.3. Allowances refill daily at midnight in a chosen reset timezone, do not roll over, and are topped up by a flexible monthly bonus. The Free plan is $0 per month with no card required, refills $1.50 of model usage daily and tops out at $46.50 of usage per month. Starter is $8 per month with $2.50 daily, a $3 monthly bonus and a $80.50 maximum. Plus is $25 per month with $4 daily, a $5 bonus and a $129 maximum. Pro is $60 per month with $6.50 daily, an $8 bonus and a $209.50 maximum. A yearly billing option is advertised as saving 22 percent. The product is in beta, and the vendor states that model costs and allowances may change, that fair use limits apply and a session may pause even with allowance remaining, and that monthly cancellation ends access immediately with no proration or refund.