# CrownSide — Mechanical Watch Companion

> Mechanical Watch Companion (iPhone/iPad app by Zhang Linghua.)

- Source: https://appshunter.io/ios/app/crownside/id6761770522 (this page in markdown: same URL + `.md`)
- Developer: [Zhang Linghua](https://appshunter.io/developer/1681446318)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.2 · 1 MB
- Languages: English, Japanese
- Released: 2026-04-13
- Data updated: 2026-06-27
- User reviews in markdown: https://appshunter.io/ios/app/crownside/id6761770522/reviews.md

## What is CrownSide?

CrownSide is the watch journal built for enthusiasts who care about the details. Whether you own one cherished piece or a growing collection, CrownSide helps you track every wear, every service, and every tick — all in one place.

Your Collection, Organized

- Add each watch with a photo, brand, model, serial number, purchase date, and personal notes. Everything you need to know about a watch is always a tap away.

Daily Wear Log

- Record which watch you wore each day — swipe right on a watch to log it in one motion. Browse your wear history on an interactive calendar and see yearly summaries with per-watch streaks — a personal diary of time on the wrist.

Accuracy Tracking

- Measure your watch's timekeeping performance over time. Log offset readings, filter by winding position, visualize drift on a scrollable chart, and see seconds-per-day rate for each entry. Know exactly how your movement is performing.

Maintenance History

- Keep a complete service record for every watch. Log overhauls and repairs with dates and notes, so you always know when a watch last saw a watchmaker.

Private by Default

- No account. No subscription. Your data lives on your device.

Export & Import

- Back up your watches or move them between devices with a single JSON export. Your data is always yours.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Tall Cappuccino | $4.99 | one-time |
| Espresso | $0.99 | one-time |
| Venti Macchiato | $9.99 | one-time |
| Short Latte | $1.99 | one-time |



## Version history (last 2 releases)

### 1.2 — 2026-04-23

- Swipe to log — swipe right on any watch to record today's wear in one motion
- Japanese language support
- Today's wear hint — a floating badge on the watch list shows which watches you've worn today
- Position filter — filter accuracy measurements by winding position (dial up, crown up, etc.)
- s/day drift per measurement — each accuracy entry now shows the calculated seconds-per-day rate
- Polished animations and smoother scrolling throughout
- Various UI refinements and bug fixes

### 1.0 — 2026-04-13

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-27.*