SimpleClock vs CrownSide
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleClock
A customizable clock app designed for studying, offering a clean interface with no ads or charges. Personalize the background, font, and text color, and utilize built-in stopwatch and timer functions. Widgets are now available for enhanced convenience.
- Customizable clock appearance
- No ads or charges
- Stopwatch function
- Timer function
- Widget support
- Dark mode support
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Widgets are now available! Dark mode support, no ads, no charges. All functions are free of charge. - A simple clock that is perfect for studying! - You can change the background photo, font, and color of the text to customize the clock to your liking. - Stopwatch function and timer function! - Widgets* are now available! * To use the widgets, you need a device with iOS 14 or later or iPadOS 14 or later. -------------------------------------------- If you have any problems, please contact us using the support form below or "Help" in the app. https://support.reoapp.com/form Privacy Policy https://support.reoapp.com/clock/en Support email address support[at]reoapp.com *Please replace [at] with @ when sending email. --------------------------------------------
CrownSide
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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.
Screenshots
Verdict
The clearest difference is device support: SimpleClock at 3 against CrownSide's 1. SimpleClock also leads on iOS requirement (15.0 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. SimpleClock sells 3 one-off in-app purchases and CrownSide sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SimpleClock ships an update every 2 weeks, CrownSide every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | SimpleClock | CrownSide |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 11 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Reo Shigeno | Zhang Linghua |
In-app purchases
SimpleClock
- Cheer for the developer$0.49
- Cheer for the developer$2.99
- Cheer for the developer$5.99
CrownSide
- Espresso$0.99
- Short Latte$1.99
- Tall Cappuccino$4.99
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- Venti Macchiato$9.99









