---
title: "CrownSide - Reviews, Revenue and Downloads in Japan | Apple App Store"
description: "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 e"
---

# CrownSide — Japan

![CrownSide App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/64/d4/93/64d49301-0b95-1bbc-9cac-a8597f466795/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png)

**Developer:** [Unknown](https://apptail.io/developer/unknown-orIvXb)
**Category:** Lifestyle
**Rating:** 5.0/5 (1 ratings)
**Price:** Free
**Bundle ID:** com.lhzhang.ios.CrownSide
**Store:** Apple App Store
**Country:** Japan
**Version:** 1.2 (released 2026-04-23)
**Original Release:** 2026-04-13
**Languages:** English, Japanese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id6761770522)
**AppTail Page:** [https://apptail.io/app/crownside-gMsz/japan](https://apptail.io/app/crownside-gMsz/japan)

## CrownSide Description
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.

## CrownSide Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/be/a6/17/bea61765-bb56-16b5-d493-a4ee45c35862/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_19.57.35.png/1284x2778.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/83/eb/d4/83ebd45c-096c-3d8d-d981-5b3b23178657/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_20.00.03.png/1284x2778.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/de/b4/ad/deb4adee-ddf8-1feb-5bed-ecf2d0a0bb36/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_19.58.15.png/1284x2778.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ec/a0/5f/eca05fef-9600-8f24-9b11-1c0d2a0cdfb5/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_19.57.45.png/1284x2778.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/df/b8/71/dfb87176-def7-444f-b025-4a778ba2a5f7/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_19.59.11.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/88/5a/83/885a83f2-e647-876a-b448-55d8846b6be4/Simulator_Screenshot_-_iPhone_14_Plus_-_2026-04-17_at_19.59.57.png/1284x2778.png)

## CrownSide Rating Breakdown in Japan
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)






## CrownSide Available In
- [Japan](https://apptail.io/app/crownside-gMsz/japan)
- [Azerbaijan](https://apptail.io/app/crownside-gMsz/azerbaijan)
- [Nigeria](https://apptail.io/app/crownside-gMsz/nigeria)

---

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