Kairos vs RandomTimer
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Kairos
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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.
RandomTimer
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Random Timer is a countdown timer that runs for a time you set, or picks a random length within a range you choose. You can also hide the clock so you don't know when it will end. Two modes ⢠Basic: enter hours and minutes and count down. ⢠Random: set a minimum and maximum, and the timer picks a length between them in whole minutes. You don't have to know what it picked until it goes off. Hide the time Turn on "Hide current time" before you start, or tap to hide and show the remaining time while it runs. When hidden, the display shows only --:--:--. When time is up If the app is open when time runs out, sound and vibration repeat until you tap Stop. If you've left the app, on iOS 26 or later a system alarm rings if you've given alarm permission; otherwise you get a single notification. Pause, resume and stop anytime. The countdown keeps running even if you close the app, and reopening it shows the time left. Your last mode, times and hide setting are remembered. Good to know ⢠Times are set in hours and minutes (no seconds). ⢠Available in English, Korean, Japanese, Simplified Chinese, Spanish, French, German, Portuguese, Russian and Hindi. ⢠A banner ad shows at the bottom of the screen, and a full-screen ad appears every 10th launch. Each time your total timer use passes another 2 hours, an ad plays when you next start a timer; if you close that ad before it finishes, the timer won't start. ⢠Tap Subscribe to start a monthly auto-renewing subscription that removes all ads. Subscription details ⢠Subscribe (ad removal): 1-month auto-renewing subscription ⢠Payment is charged to your Apple ID account. ⢠It renews automatically unless you cancel at least 24 hours before the current period ends. ⢠Manage or cancel it in Settings > Apple ID > Subscriptions. ⢠Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ⢠Privacy Policy: https://timer.vnamu.com/privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Kairos at none against RandomTimer's 1. Kairos also leads on ads (none vs shown) and update cadence (every 4 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. RandomTimer sells 1 in-app purchase, starting at $0.99 per month. Kairos asks for nothing beyond the download.
Kairos ships an update every 4 days, RandomTimer every 3 weeks. Both last shipped on October 31, 2026.
| Parameter | Kairos | RandomTimer |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days ā better | Every 3 weeks |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 36 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Benno Kohrs | WanYeol Park |
In-app purchases
Kairos
No in-app purchases
RandomTimer
- remove_ads$0.991 Month
Questions
Is Kairos free?
Is RandomTimer free?
Do Kairos or RandomTimer have ads?
Which is updated more often, Kairos or RandomTimer?
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