Health, home and travel decision
Sabbath Space
A basic Android-only app triggered by a Bluetooth/NFC tag is realistic for a single technical builder, but full parity with the paid product (especially iOS behavior and shipped hardware/fulfillment) is not achievable without vendor hardware, platform-level controls, or extra operations.
Visit website↗Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$100one-off100 h to build
$20/mo3 h/mo upkeep
No published price to break even against.
Open-source builds that already do this
Every project below is open source and already does this job today. Fork one, self-host it, or take the parts you need - the build prompt further down assumes an empty file, and this is the shortcut past that. Licences differ; check the one on each card before you ship. All Sabbath Space alternatives, with the arithmetic →
What a replacement has to do
- User taps a Bluetooth tag which the mobile app detects; the app enforces a restricted phone mode that blocks selected apps/notifications; user can configure which apps remain available.
What it still won’t have
- Official hardware manufacturing, fulfillment, and quality control
- Polish and cross-platform support (iOS parity) provided by vendor
- Integrated physical-device warranties and logistics
- Any proprietary firmware or closed integrations the vendor supplies (if any)
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Sabbath Space does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
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What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a minimal Android-first implementation using Kotlin, Firebase, and a small Node.js hosting tier: 1) Implement an Android app with an AccessibilityService and a local settings UI to choose allowed apps and enable/disable a 'locked' mode; 2) Add Bluetooth LE (and NFC fallback) tag pairing and detection to trigger lock/unlock; 3) Store user settings and simple usage events in Firebase (Auth optional, use anonymous or email login); 4) Provide a small Node/Express endpoint for analytics and a static Shopify or Netlify landing page for hardware orders; 5) Include error handling for Bluetooth failures, permission denial, and AccessibilityService stop/restart; write unit tests for core app logic and end-to-end tests for lock/unlock flows. Out of scope: iOS implementation, manufacturing or shipping workflows, and MDM-based enterprise controls.
How we checked
How the score was reached
- Partly verdict base52
- An open-source build was found+5
- 4 cited sources+3
- 3/3 assessment runs agreed+4
- Evidence score64
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 4
Every page the run actually retrieved.
- official productSabbath Space (home)
- official pricingSabbath Space Plans
- open sourcecurbox-app/curbox-android
- open sourcetanujnotes/Olauncher
Integrity checks
What held up, and what did not.
