# CusTimer vs One Timer

The clearest difference is rating: One Timer at 5.0 against CusTimer's 4.0. One Timer also leads on update cadence (every 4 days vs every 2 weeks). CusTimer's advantage is in-app purchases (none vs 4) and device support (3 vs 1). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. One Timer sells 4 in-app purchases, starting at $1.99 per month. CusTimer asks for nothing beyond the download.

One Timer holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

CusTimer ships an update every 2 weeks, One Timer every 4 days. Both last shipped on October 5, 2026.

## The numbers

| Metric | CusTimer | One Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/custimer/id1145514135/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one-timer-one-tap-timer/id6472574013/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 42 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Xiu Cheng](https://appshunter.io/developer/1072718085) | [DAIKI YUASA](https://appshunter.io/developer/1632691655) |

## What reviewers say

### CusTimer

[App page](https://appshunter.io/ios/app/custimer/id1145514135)

This highly customizable timer app offers speech reminders, second-by-second beeps, and custom "time's up" messages. It features a large display, elegant fonts, cool animations, and supports timer, stopwatch, and clock modes in four languages.

**Highlights:** Customizable timer settings, Speech reminders and messages, Second-by-second beep sounds, Countdown in last few seconds, Large, full-screen time display, Timer, Stopwatch, and Clock modes, Multi-language speech support

**Features:** macOS Compatibility

**In-app purchases:** none


### One Timer

[App page](https://appshunter.io/ios/app/one-timer-one-tap-timer/id6472574013)

Easily manage multiple timers simultaneously for everyday tasks like cooking or interval training. Quickly start timers with a single tap and customize their appearance with a wide range of colors. The app offers a premium plan for an ad-free experience and unlimited custom timers.

**Highlights:** Simultaneous multi-timer functionality, One-tap timer launch, Customizable color settings (RGB), Background notifications, HIIT and Pomodoro timer support, Stopwatch for work hours

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREMIUM | $1.99 | per month |
| Buy me a coffee | $1.99 | one-time |
| Buy me a burger | $3.99 | one-time |
| PREMIUM | $9.99 | one-time |


## Frequently asked questions

### Is CusTimer free?

CusTimer is free to download, with no in-app purchases.

### Is One Timer free?

One Timer is free to download, with in-app purchases available.

### Which has better reviews, CusTimer or One Timer?

One Timer is rated higher. CusTimer averages 4.0 out of 5 from 1 ratings, while One Timer averages 5.0 from 1 ratings.

### Do CusTimer or One Timer have ads?

Neither CusTimer nor One Timer shows ads.

### Which is updated more often, CusTimer or One Timer?

CusTimer ships an update every 2 weeks, and One Timer every 4 days. Most recently, CusTimer was updated on October 5, 2026 and One Timer on October 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*