Color Timer vs OTB Clock
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Color Timer
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See how much time is left at a glance. Color Timer is a visual timer with a full screen countdown. As time passes, the colored area shrinks, giving you a clear sense of the time remaining. Set it on your desk for a study session, glance over while cooking, or keep your next presentation on time. A clear screen for your countdown Large numbers and vivid color fill the timer screen. There are no ads on the countdown screen and no full screen ads to wait through before starting. Keep the timer open and your screen stays awake while the countdown runs. Save it once. Start with one tap. Save your favorite timers with a name, duration and color, then start them directly from the home screen. Choose 1, 5, 10 or 25 minutes with quick duration buttons, reuse a recent duration, or set your own hours, minutes and seconds. Big numbers, in portrait or landscape Use your phone or tablet upright on your desk or sideways for a meeting, presentation or class. Choose from 18 color themes. Turn on the finishing-soon cue for a change in color and an on-screen message as time runs low. Pause, adjust and keep going Pause and resume, add a minute, or restart when you need to. Lock the controls to avoid accidental taps. Adding a minute to a running countdown leaves your saved timer's duration unchanged. Choose how your timer ends Preview and choose from 8 built-in alarm sounds. Switch sound and vibration on or off separately. In a quiet space, turn both off and use the visual display. Time for everyday moments โข Study and work: set aside time for one task. โข Cooking and tea: check the time with a quick glance while your hands are busy. โข Presentations, meetings and classes: share an easy-to-see countdown. โข Stretching and breaks: make room for a few minutes away from your desk. For a simple Pomodoro routine, start a 25-minute focus timer, then start a 5-minute timer for your break. No account is needed. The timer itself works offline. The app interface follows your device language, with Korean and English supported. Ads appear only on the home screen. Allow notifications to receive an end-of-timer alert while the app is in the background. Sounds and vibration depend on device capabilities and system settings.
OTB Clock
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OTB Clock is a precise chess clock for over-the-board games. Supports all standard time controls from bullet to classical. Features: - Bullet, Blitz, Rapid, and Classical presets - Fischer increment support - Move counter - Tap-to-switch interface - Screen stays on during games - Custom time control creation Premium unlocks all time control presets and custom time controls. Free users get 3-minute, 5-minute, and 10-minute presets. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://frexx.top/privacy Privacy Policy: https://frexx.top/otbclock/privacy.html Terms of Use: https://frexx.top/otbclock/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: Color Timer at none against OTB Clock's 1. Color Timer also leads on iOS requirement (15.0 vs 17.0). OTB Clock's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 5 months). On price and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. OTB Clock sells 1 in-app purchase, starting at $19.99 per year. Color Timer asks for nothing beyond the download.
Color Timer ships an update every 5 months, OTB Clock every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | Color Timer | OTB Clock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 2 weeks โ better |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPad |
| Requires iOS | 15.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 45 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Seulki Eom | ๆฐ ๅ |
In-app purchases
Color Timer
No in-app purchases
OTB Clock
- Premium โ Yearly3 Days trial$19.991 Year
Questions
Is Color Timer free?
Is OTB Clock free?
Do Color Timer or OTB Clock have ads?
Which is updated more often, Color Timer or OTB Clock?
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