OneHandClock vs Catty Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OneHandClock
Experience a unique approach to timekeeping with a minimalist, single-hand clock. Customize backgrounds with your photos or camera, and choose between 12 or 24-hour formats with 10-minute increments. A three-hand option with a smooth second hand is also available.
- Single-hand clock display
- 24-hour and 12-hour formats
- 10-minute scale divisions
- Optional second hand
- Customizable clock position and size
- Camera or photo backgrounds
- Character customization on dial
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This is a one needle clock. Let's feel the passage of calm time. - One-stitch clock -> 24-hour clock. The day-time is an upper half and the night-time is a lower half. -> 12-hour clock. -> The smallest scale division is 10 minutes. - Three-stitch clock - > The second hand is a clock which gains smoothly. - You can change the position and size of the clock. - You can choose a camera image or a photo as the background of the clock. - Please write a favorite character in a dial and make it your clock. - If it puts sideways, a status bar will not be displayed. - When continuing displaying in "Auto sleep"-off, we recommend you to connect with a power supply. There is a paid version "oneHandClock (Pro version)" that does not display advertisements.
Catty Timer
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For students who want to improve productivity and make full use of learning time, this is a perfect partner. This application aims to help you focus on, manage time effectively, and turn learning into an interesting and fascinating experience. We provide a built -in Pomodoro timer, which is a popular time management technology that helps you break down the learning time into a key interval. By alternating between learning and rest time, you can keep your attention while avoiding burnout. Let the learning cat use its cute knock on claws to guide you! We understand that each student has unique learning preferences. This is why we provide customized timers! Set your own learning and rest time to match your workflow. Whether you like a short and strong focus eruption, or longer and leisurely, we can meet your needs.
Screenshots
Verdict
The clearest difference is ads: Catty Timer at none against OneHandClock's shown. Catty Timer also leads on update cadence (daily vs every 26 months). OneHandClock's advantage is device support (3 vs 1). On price, in-app purchases and iOS requirement 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. Neither carries in-app purchases, so what you see is what you pay.
OneHandClock ships an update every 26 months, Catty Timer daily. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | OneHandClock | Catty Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (5 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 26 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Keietsu Yasuhara | 忆倩 刘 |
In-app purchases
OneHandClock
No in-app purchases
Catty Timer
No in-app purchases









