S3 Clock vs Flip Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S3 Clock
This app offers a customizable and ad-free idle clock experience. It features a smart, lightweight display with options for color, date/time formatting, orientation, and animation. Designed for accessibility, it promises a stable and private user environment.
- Ad-free experience
- Customizable color and formatting
- Selectable orientation
- Toggleable animation
- Lightweight and stable performance
- Accessibility friendly
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The concept of the app is to provide an idle clock with a smart and configurable display. More important with guarantee free, no Ads, no data collection, and running in stable, lightweight environment. Additional Support: - Customized color, date & time formatting and styling - Auto and 4 selectable orientation - Toggleable animation - Accessibility friendly - Upcoming artworks, stay tuned! End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Flip Clock
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Your flip clock, reimagined. One screen. Three modes. Zero clutter. A large flip-digit clock that shows time like a retro split-flap display. Swipe left for Pomodoro timer, right for stopwatch. No menus, no tabs, no distractions. FREE FEATURES (forever): • Full-screen flip clock with 12/24-hour display • Optional seconds display — card or mini style • Date and weekday at a glance • Stopwatch with start/pause/reset • Pomodoro timer with customizable duration • 2 alarms • 1 countdown event • Monthly calendar view • Cycle tracker with predictions • Portrait and landscape support • Screen always-on option • English and Chinese PREMIUM (one-time, no subscription): • Multiple color themes • Flip animation styles and sound effects • Custom app icons • Unlimited alarms with repeat rules • Unlimited countdown events with categories • Calendar integration with alarms and countdowns • Week view in calendar • Cycle tracker Face ID lock, reminders, data export Most clock apps bury you in menus or lock features behind subscriptions. SimpleClock gives you the essentials free forever, with a single one-time purchase for power users. 100% offline. No account. No data collection. Your time. Your device. Simple.
Screenshots
Verdict
The clearest difference is update cadence: Flip Clock at monthly against S3 Clock's every 14 months. On price, ads, in-app purchases and device support 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. S3 Clock sells 2 in-app purchases, starting at $0.99 per year and Flip Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
S3 Clock ships an update every 14 months, Flip Clock monthly. The most recent releases landed on September 9, 2026 and August 11, 2026 respectively.
| Parameter | S3 Clock | Flip Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 14 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Nosneb Tech | 磊 刘 |
In-app purchases
S3 Clock
- Yearly Donation$0.991 Year
- One Time Donation$0.99
Flip Clock
- SimpleClock Pro Edition$2.99









