TimerZ vs Kairos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TimerZ
This utility app allows users to set multiple countdown timers simultaneously, with options for custom alarms, background operation, and history logging. It offers advanced features like chained timers and Dropbox integration for saving and loading data.
- Multiple simultaneous timers
- Background operation
- Customizable alarms and sounds
- Timer chaining and looping
- Activity history logging
- Dropbox integration
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Why did we create another timer app when there are already dozens in the App Store? Because “Timer Z is the Last Timer You’ll Ever Need”! It's simple to use yet full featured. For example, you can easily set a timer to give a 15 seconds warning before another alarming at 1 minute mark. Some unique features of Timer Z are: - A simple count down timer can be set and started with just 3 taps - Multiple timers can be set and can run simultaneously - The timer will fire even if the Timer Z app is running in the background - Each timer can be named and set to expire after a time interval, or at a specific point in time like an alarm - While a timer is running, it can show remaining time or elapsed time since start, either in full hour/min/sec or just seconds - Background graphics shows the percent of time remaining - A running timer can be paused and resumed to continue where it left off - When a timer expires, there is a choice of alarm sounds, vibration, or no sound at all - Optionally the alarm can continue to sound until acknowledged - Upon expiration, a timer can start another timer, including itself in a loop - Timer activity history is saved and can be emailed, great for record keeping - Timer data can be saved and loaded from a linked Dropbox account Whether you’re looking for a simple timer, or one with all the bells-and-whistles, Timer Z is the best choice! NOTE: this version is limited to 2 timers. Use the convenient in-app purchase of Pro feature to add an unlimited number of timers, and eliminate all advertisements. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Kairos at none against TimerZ's 2. Kairos also leads on update cadence (every 4 days vs every 3 months) and iOS requirement (15.1 vs 18.6). On price, ads 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. TimerZ sells 2 in-app purchases, starting at $0.99 per month. Kairos asks for nothing beyond the download.
TimerZ ships an update every 3 months, Kairos every 4 days. The most recent releases landed on July 9, 2026 and September 15, 2026 respectively.
| Parameter | TimerZ | Kairos |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (10 ratings) — better | — |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple TV — better | iPhone, iPod |
| Requires iOS | 18.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 65 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Squawk Studio, LLC | Benno Kohrs |
In-app purchases
TimerZ
- Pro Monthly$0.991 Month
- Timer Z Pro$4.99
Kairos
No in-app purchases









