A Bolt alternative that signs your code: SPOE vs BoltBolt is a good builder. Here is what SPOE does differently, what Bolt's own pages say, and where Bolt may suit you better.SPOE

Free to start. 50 credits when you sign up and a daily top-up to 30, no card. A build on the default models costs about 10 to 30 credits.

Paying. No subscription. Credit packs from A$19 for 5,000 credits, used as you go, at each model's own price.

Your code. Export a ZIP, or link a GitHub repo once: every version lands there as a commit, and commits made in the repo come back in.

Export, for good. Your first payment of any size unlocks export permanently, whether or not you ever pay again. Locked or not, the code is always visible and copyable in the editor.

Proof. Every export carries an Ed25519-signed provenance manifest and the verifier that checks it, offline or at spoe.ai/verify, in your browser.

Runs without us. An export is a Next.js, Fastify and Postgres project that starts with docker compose up and has no SPOE dependency inside. CI proves that on every commit.

Safety. Every change is reviewed by a second model from a different model family before it lands. A flagged change waits for you.

Privacy. Models run on Venice's private inference, which keeps no copy of prompts or outputs. Chats, bots and images stay in your browser.

Hosting. Publish to <name>.spoe.dev, or to a domain of your own with automatic HTTPS.

Bolt

Free plan. 300,000 tokens a day, up to 1 million a month. Free hosting shows Bolt branding. (source)

Paying. Pro from $25 a month, which adds custom domain support. (source)

Bolt may suit you better if you want to work in many frameworks and see the app run inside your browser tab as it is written.Read from Bolt's own pages on 2026-10-10. Prices and plans change; follow the links for theirs today.Also compare: SPOE vs Lovable · SPOE vs Base44 · SPOE vs v0App ideas · Compare builders · Verify an export · Developer API · Start freeThis page needs JavaScript to run the app itself. Everything above is a plain description of it.