The free cloud alternative to Devin
Devin pioneered the autonomous cloud engineer — at ~$2,400/yr. Freebuff Cloud covers the cloud-sandbox-and-agent part for $0.
TL;DR
- Devin is the autonomous cloud engineer from Cognition — impressive, and ~$200/mo ($2,400/yr) at the tier where it is actually useful, with "ACU" metering on top.
- Freebuff Cloud gives you the same skeleton — a cloud sandbox, an agent that works in it, a live preview — for $0.
- It works on any GitHub repo, including private and team repos.
- Devin still wins on long, fully-managed autonomous jobs. Freebuff wins on cost, transparency, and in-the-loop work.
Devin earned the hype. "Hand the agent a task, walk away, come back to a PR" is a real workflow and Cognition nailed it. The problem is the bill: the tier where Devin is more than a demo runs about $2,400/yr, and then there are ACUs. Freebuff Cloud is the $0 version of the cloud-sandbox half of that equation.
What Devin costs once you actually use it#
Devin’s entry pricing exists to get you in the door; the plan people use for real work is the ~$200/mo tier, and the agent burns "ACUs" (Agent Compute Units) on top of the subscription. Long autonomous jobs are exactly where ACUs pile up, which is a slightly cruel irony: the feature you bought Devin for is the feature that costs the most to use.
| Feature | Freebuff | Devin (Cognition) |
|---|---|---|
| Price | $0 | ~$200/mo ($2,400/yr) |
| Cloud sandbox | Yes — any GitHub repo | Yes — Devin-managed |
| Metering | None | ACUs on top of subscription |
| Live preview URL | Yes, shareable | Devin Console (internal) |
| Opens PRs | Yes | Yes |
| Long multi-day autonomy | In-the-loop oriented | Devin’s specialty |
| Inspect / take over | Browser + terminal, live | Devin Console |
| Models | DeepSeek V4, Kimi K2.6, GLM 5.2, + more | Internal selection |
Where Devin still wins#
- Multi-day autonomous jobs. Devin’s scheduler, retries, and "let it run overnight" model are the best in class for genuinely long-horizon work.
- Fully managed. You do not need to think about infra, sandboxes, or previews — Devin owns the whole box.
- The Console. Watching Devin work is a polished experience, and the session replay is genuinely useful.
Where Freebuff Cloud wins#
- Cost. $0 vs $2,400/yr plus ACUs. For anything you sit in on (which is most cloud-sandbox work), that is hard to argue with.
- No ACU math. You will never pause a task because you are about to burn your monthly budget.
- Any repo + shareable preview. Connect a repo, send the preview link to a human who does not have Devin. That workflow is native here.
- Bring projects from Lovable / Bolt / Replit. Same GitHub repo, no rewrite.
The cloud agent without the ACU meter
Connect a repo to Freebuff Cloud — sandbox, agent, live preview, $0.
Try Freebuff Cloud free
