A useful trial ends with a saved record you can reload. Beamline's free sample includes the Settings screen, so you can evaluate it against your own app before buying the full system. There is no account requirement for the public CLI install.

Start with Try Beamline on your app in 30 minutes. It contains one copy-paste prompt for Claude Code, Codex or Cursor, the no-account install line, and the checklist the agent must run and report.

Give the trial a real job

Use a development profile in an app that already runs. The agent should reuse your current API and validation. If there is no backend, the prompt asks for a small local API backed by a file on disk. That is useful local persistence; it is not a claim that the app now has a production backend. The prompt explicitly excludes demo adapters and in-memory success messages as substitutes for saving.

Save a changed name. Read it from the API, then refresh and read the field.
Reject one real save. Storage stays unchanged, the draft stays visible, and Retry saves the same draft after recovery.
Delay, empty and fail the initial load. Loading, an actionable empty state, and error with Retry appear in the browser.
Check phone and keyboard use. At 390 px, fields and Save remain reachable. A keyboard-only edit and save also succeeds.
Apply a custom style. Radius, motion, brand and font change through the style CLI while stored settings remain.
Add Job title. The field passes through UI, API validation and storage, and survives a refresh.

The evaluation prompt also asks for final desktop and phone screenshots, versions, elapsed time and exact rerun steps. A production build is one check; the stored record and the browser operations supply the rest of the evidence.

Keep the decision small

If a check fails, use the specific recovery step in the pass checks. The data guide explains the save contract, and Customise explains how the app owns its style without editing library internals. Complete the trial before expanding it into more screens.

After that, the full system offers 200+ components and 50+ ready-made screens, including tables, charts, trading, AI and voice interfaces, and all nine looks, for the $49 launch price with lifetime updates. The catalog supplies those counts, rounded down to tens. You keep control of the backend and choose the next screen from the library.