Relpin

Relpin is a platform for internal tools. Apps are real TypeScript/React or Python code. You edit them in the browser, next to a code editor, an AI assistant, live preview, a terminal, Python workflows on a canvas, and a Postgres database scoped to your organisation. Releases are content-addressed. Every publish is canonicalized, SHA-256 hashed and pinned to exact schema versions, so the build you tested is the build that ships. Promotion runs DEV to TEST to PROD behind approval gates. TEST needs one approval. PROD needs two, and whoever requested the release cannot approve it. Promotion fails closed if the schema has drifted since the plan. Each organisation gets its own Postgres database with row-level audit, not a shared one. Mutations, releases and deployments are recorded with the actor and the before/after values. Most app builders stop once the UI is generated. The part they skip is production data access with no environment separation, no approvals and no audit trail. That is the part Relpin covers. Open beta. Free plan, paid from EUR 29 per month. Runs in the browser, nothing to install.