Health, home and travel decision
Luma
A capable technical user can build the core offline journaling and guided CBT flows in a few weeks, but reproducing cross‑device sync, App Store distribution polish, and the full commercial product experience (subscriptions, ongoing UX, brand/audience) is non‑trivial.
View on the App Store↗$1.99/mo
$24/yr
Per seat. Read off the official pricing page.
$100one-off70 h to build
$0/mo3 h/mo upkeep
On cash alone, building overtakes the subscription at 5 seats.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- User opens app → log a worry (text fields + metadata) → run the WorryTree problem‑solving flow (guided prompts) or use sensory practice (audio/timers) → save encrypted local journal entry → review history and simple stats.
What it still won’t have
- Cross‑device synced experience and the complexity of true end‑to‑end encrypted multi‑device sync
- App Store audience, reviews, and brand presence
- Polish and ongoing small‑team product iteration (UX tweaks driven by users)
- Built‑in community/blog integrations and any paid features tied to a central account service
What remains hard
- Product polish and ongoing maintenance
First-year cost
Keep paying
Paying is—cheaper in year one.
On cash alone, building overtakes the subscription at 5 seats.
Money you would actually spend
Time you would spend
—
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 single‑device iOS journaling app in SwiftUI + Combine using encrypted CoreData (SQLCipher) for local storage. Implement: (1) screens for adding a worry entry (title, context, severity), (2) a guided WorryTree/problem‑solving flow as stepwise forms with state saved to the encrypted store, (3) gratitude and uncertainty tracker screens, (4) audio playback for sensory practices with bundled assets, (5) App Store in‑app subscription plumbing (storekit) to gate premium features, (6) unit and UI tests, error handling, and basic analytics (privacy‑preserving). Out of scope: multi‑device E2E sync, server backend, account management. Include CI, automated tests, and handling of encryption key backup/restore instructions for users.
How we checked
How the score was reached
- Partly verdict base52
- Price verified on pricing page+3
- 3/3 assessment runs agreed+4
- Evidence score59
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 · 1
Every page the run actually retrieved.
- official productWorryTree: Anxiety Relief App - App Store
Integrity checks
What held up, and what did not.
