Can AI replace Opal?
The visible screen-time control loop is buildable, but a credible replacement needs more than the first screen. Opal earns its keep through polish, OS integration, so expect a weekend or multi-day build and a narrower personal scope.
Replacing a paid app means you set it up and keep it running: hosting, updates and backups can be on you. What you give up.
01What it costs
Checked Aug 14, 2026 · source: opal.so.
| Plan | Monthly | Billed yearly | What you get |
|---|---|---|---|
| Free | Free | Free | 1 blocking rule; basic timers and soundscapes; Screen Time Score limited to today. |
| Pro | $19.99 | $8.33/mo | Unlimited blocking rules and the full Pro feature set. |
| Pro Lifetime | — | — | Lifetime Pro access. |
| Teams | — | — | Custom team administration and deployment; no public price or numeric limits. |
Hidden costs: Student pricing is up to 50% off. Direct Stripe purchases have a 30-day refund policy, while Opal cannot refund Apple-billed purchases. The public monthly-panel billing copy is contradictory.
02Could AI build it for you?
The core job: Build a local desktop utility that captures the essential screen-time control workflow with keyboard-first controls and local storage.
What a working version needs:
- macOS, Windows, or Linux development machine
- Node.js 22 and Rust toolchain
- Local filesystem access and OS permissions
Useful boundary case: the first 60 percent of Opal is approachable, but operating the last 40 percent is the real subscription.
03What you'd give up
- cross-device sync
- deep operating-system edge-case coverage
- polished shortcuts and accessibility
- vendor-maintained updates
Opal: People keep paying because a utility used dozens of times a day must be instant, predictable, and compatible with every OS update.
04Free and cheaper alternatives
Built-in Apple limits with passcodes and device sync; less stubborn, but genuinely free.
support.apple.com →The hardened blocker without the subscription: delays, limits, strict sessions, and cross-device apps.
screenzen.co →05The build prompt
The complete build prompt, plus 11 step-by-step prompts from research to launch, a design system file, a page-by-page spec, the data model and a launch checklist.
Get the Build Kit · $9 →One-time payment. Delivered on screen and by email.
06Free open-source starting points
- ActivityWatch: Local-first automatic time tracking with an extensible event model.
Prices change; confirm on the vendor's site before you decide.
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