# One Timer - One Tap Timer — Ultra-fast multi-timer launch.

> Simple, one-tap multi-timer for various everyday timing needs. (iPhone/iPad app by DAIKI YUASA.)

- Source: https://appshunter.io/ios/app/one-timer-one-tap-timer/id6472574013 (this page in markdown: same URL + `.md`)
- Developer: [DAIKI YUASA](https://appshunter.io/developer/1632691655)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 39 MB
- Languages: American English
- Released: 2023-12-14
- Data updated: 2026-08-22
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/one-timer-one-tap-timer/id6472574013/reviews.md

## What is One Timer?

One Timer is a simple timer created by a developer who really wanted it.

You want to time your family's instant noodles for 3 minutes and 5 minutes at the same time, but you can't do it quickly. You want to boil eggs for 8 and a half minutes while measuring pasta for 6 minutes, but you can't do it. You want to open the app and start it immediately with one tap.

We've solved those everyday problems for you and me.

--- This tool is useful in scenarios like below ---
- As a timer for HIIT (High-Intensity Interval Training)
- As a Pomodoro timer for study sessions
- As a stopwatch to calculate working hours for freelance or contract work
- For managing stamina in multiple social-network game apps

--- Customizable Color Settings ---
You can set the background and text colors using RGB values, allowing for free changes to any color.
This feature enables you to boost motivation by changing to your favorite colors.

--- How to use ---
- Tap the desired time from the list on the left to start the timer.
- You can quickly add another timer without switching screens by long-pressing the list.
- For example, you can start multiple timers simultaneously by long-pressing 3 minutes and 5 minutes.
- Notification when it goes into the background.

--- PREMIUM Plan ---
- No Ads
- Unlimited Custom Timers

--- Links ---
https://40yd.app/one_timer_terms
https://40yd.app/one_timer_policy

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| PREMIUM | $1.99 | per month |

**One-time purchases**

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


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/one-timer-one-tap-timer/id6472574013/reviews.md

### 5/5 — 最高です

*2026-05-21*

ソシャゲのスタミナ回復通知に使っています。
他のアプリのアラーム機能を使っていましたが、タイマー形式でスヌーズがあるものを探してこちらのアプリにたどり着きました！
イベントを頑張って走れそうです。
ウィジェットがあれば課金したいです。

### 5/5 — 使いやすい

*2025-01-31*

素敵なアプリありがとうございます。
・複数のタイマーをリスト管理できる
・すっきりとした画面構成
など一目見て気に入りました。

可能でしたら、アラーム音の種類が選べるようになれば嬉しいです。

眠る前や読書、静かな場所で集中して作業するなどの、穏やかな時にも使用できたらめちゃくちゃ助かると思いまして。

やさしめのアラーム音や流水音、1回だけ軽い音が鳴る…などがあればそういうシーンでも活用できるので、追加ご検討いただけますと幸いです。

## Frequently asked questions about One Timer

### How many timers can One Timer run at once?

The free version of One Timer allows for multiple timers to run simultaneously. The PREMIUM plan offers unlimited custom timers, suggesting the free version may have a practical limit on custom timers but still supports concurrent basic timers.

### Does One Timer have ads?

No, One Timer is ad-free. The PREMIUM plan specifically mentions 'No Ads', indicating the base free experience is also without advertisements.

### What is the cost of the PREMIUM plan for One Timer?

The PREMIUM plan for One Timer is available for $1.99 per month. This plan removes ads and provides unlimited custom timers.

### Can I use One Timer offline?

The provided description does not explicitly state offline functionality. However, as a timer application, it is highly likely to function without an internet connection for its core timing features.

### How often is One Timer updated?

One Timer was last updated on December 18, 2025, with version 1.3.0. This indicates a recent update, suggesting active development and maintenance.

### What devices does One Timer support?

One Timer currently supports iPhones. Information regarding Android compatibility is not provided in the current data.

### What is the age rating for One Timer?

One Timer has an age rating of 4+. This means it is suitable for children aged 4 and above.

### How do I start multiple timers quickly in One Timer?

You can start multiple timers simultaneously by long-pressing the desired time from the list. For instance, long-pressing both 3 minutes and 5 minutes will start both timers at once.

## Version history (last 5 releases)

### 1.3.0 — 2025-12-18

- Now all features are free.

### 1.2.9 — 2024-05-28

- Minor performance improvements

### 1.2.8 — 2024-03-20

- Internal performance improvements.

### 1.2.7 — 2024-03-01

- Internal performance improvements.

### 1.2.5 — 2024-02-07

- Performance improvements.

## Apps similar to One Timer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Min & Sec Timer](https://appshunter.io/ios/app/min-and-sec-timer/id1583602831) | 4.8 (13) | Free | Utilities |
| [Timer of Time](https://appshunter.io/ios/app/timer-of-time/id1532347050) | 5.0 (1) | Free | Utilities |
| [One Tap Timer](https://appshunter.io/ios/app/one-tap-timer/id6474214326) | — | Free | Utilities |
| [MinSec - Multi Timer](https://appshunter.io/ios/app/minsec-multi-timer/id6455493221) | 5.0 (1) | Free | Utilities |
| [Timer Holic](https://appshunter.io/ios/app/timer-holic/id1153908526) | 4.9 (14) | Free | Utilities |
| [Multi Timer - Visual Timer](https://appshunter.io/ios/app/multi-timer-visual-timer/id1609750176) | 4.7 (3) | Free | Utilities |

## More apps by DAIKI YUASA

- [CLABY - Simple Calc Workout](https://appshunter.io/ios/app/claby-simple-calc-workout/id1632691653)
- [Time Left - LIFE LEFT](https://appshunter.io/ios/app/time-left-life-left/id6444656317)
- [Simple Workout Tracker: MUSCLY](https://appshunter.io/ios/app/simple-workout-tracker-muscly/id6446846782)
- [Calorie Tracker: CalTrack](https://appshunter.io/ios/app/calorie-tracker-caltrack/id6450661751)
- [Simple Pomodoro Timer - Doro](https://appshunter.io/ios/app/simple-pomodoro-timer-doro/id6469151431)

All apps by DAIKI YUASA: https://appshunter.io/developer/1632691655

## Related topics

[simple onetap timer](https://appshunter.io/ios/topics/simple-onetap-timer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*