Pocket Watch Box

Turn your iPhone into an acoustic timegrapher. Catalog every pocket watch
with the depth a serious collector deserves — by sound, by sight, by data.

Pocket Watch Box is a private collection manager designed for enthusiasts
of mechanical pocket watches, antique stopwatches, and vintage chronographs.
Every detail — from the antique typography to the on-device acoustic
timegrapher — exists because a real collector wanted it.

— FEATURES —

CATALOG
• Up to 10 photos per timepiece, with subject-aware background cleanup
• Detailed specs: caliber, BPH, escapement, jewels, complications, case
• Purchase records, provenance, accessories
• Operating videos to capture each watch in motion

ACOUSTIC TIMEGRAPHER (Curator)
• Detect BPH, daily rate, beat error, and stability from your iPhone mic
• Live oscilloscope-style waveform visualization
• Autocorrelation-based detection for mechanical accuracy
• No external $5,000 machine required

LONG-TERM RATE TRACKING (Curator)
• Manual drift logs and acoustic readings on a single trend chart
• Catch slow degradation before your watch needs service

SERVICE & OH REMINDERS
• Track every overhaul, service, and component change
• Configurable reminders 30 days before each watch is due

ICLOUD SYNC (Curator)
• Quietly synced across all your Apple devices
• Stored only in your private iCloud — the developer cannot see it

COLLECTION INSIGHTS (Curator)
• Total value across multiple currencies
• Maker, era, condition, and operating-status breakdowns
• CSV export for permanent archival

— CURATOR PLAN —

Pocket Watch Box is free for up to 10 timepieces with banner ads. Become a
Curator to unlock unlimited timepieces, every diagnostic tool, iCloud sync,
collection statistics, exports, and an ad-free experience.

• Curator · Monthly (auto-renewable subscription)
• Curator · Yearly (auto-renewable subscription, best value)

Subscriptions automatically renew unless turned off at least 24 hours before
the end of the current period. Manage and cancel from your Apple ID
settings.

— PRIVACY-FIRST —

No accounts. No servers. No tracking. Your collection lives on your device
— and, optionally, in your private iCloud. Audio analyzed by the Acoustic
Timegrapher is processed entirely on-device and is never recorded or
transmitted.

— CRAFTED BY A COLLECTOR —

Built by a pocket watch