Pocket Watch Box
For pocket watch curators
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn your iPhone into an acoustic timegrapher. Catalog every pocket watch with the depth a serious collector deserves — by sound, by sight, by data.
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 collector who couldn't find a tool that respected
the craft. Every detail exists because a real collector wanted it.
Terms: https://lineocean.com/pocketwatchbox/
Privacy: https://lineocean.com/pocketwatchbox/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Fumihiro Kawasaki, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Fumihiro Kawasaki
- Size
- 40.8 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Curator · Yearly $29.99
- Curator · Monthly $4.99
- Copyright
- © Fumihiro Kawasaki