Big Colorful Timer vs Kairos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big Colorful Timer
A large, vibrant timer designed for full-screen display, perfect for social gatherings and game nights. It features a loud alarm and vibration to ensure you never miss a time limit.
- Full-screen display
- Large, bold visuals
- Loud alarm sound
- Vibration alerts
- Ideal for social events
Read full descriptionHide full description
This timer is big, bold, and colorful. It fills the entire screen and is ideal for game nights and social events. The alarm sound is loud and the phone vibrates so you're sure to know when time's up!
Kairos
Read full descriptionHide full description
Most timers tell you exactly when they end. Kairos does not. Set a minimum and maximum duration, start the timer, and Kairos chooses a random moment in between. You know the range. You do not know the exact finish. That simple twist makes Kairos useful anywhere timing should stay unpredictable. USE KAIROS FOR - Meditation: sit without watching the clock - Exercise: hold effort without bracing for the last seconds - Study sessions: add flexible focus or break intervals - Interval training: Auto Repeat randomises every set so you never anticipate the next round - Party games: perfect for Hot Potato, Musical Chairs, and other pass-it-fast games FEATURES - Random timer between your chosen minimum and maximum - Clean countdown interface designed for iPhone - Hide Time Display for a more focused, less predictable experience - Auto Repeat, Overtime, and Auto Stop modes after the timer ends - Label your timers for quick recognition in Recents - Choice of built-in alarm sounds - Haptic feedback when time is up - Recents for quickly restarting favorite timer setups - Light, Dark, and System theme - No ads or sign-up required Kairos is built for the moments when exact timing gets in the way and a little uncertainty makes the experience better.
Screenshots
Verdict
The clearest difference is update cadence: Kairos at every 4 days against Big Colorful Timer's every 2 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. Neither carries in-app purchases, so what you see is what you pay.
Big Colorful Timer ships an update every 2 months, Kairos every 4 days. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.
| Parameter | Big Colorful Timer | Kairos |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Hockey Labs, Inc. | Benno Kohrs |
In-app purchases
Big Colorful Timer
No in-app purchases
Kairos
No in-app purchases
Questions
Is Big Colorful Timer free?
Is Kairos free?
Do Big Colorful Timer or Kairos have ads?
Which is updated more often, Big Colorful Timer or Kairos?
Other comparisons















