# Timer45 App — Interval, Tabata, Exercise

> Interval, Tabata, and exercise timer with multiple list management and Apple Watch support. (iPhone/iPad app by Chang Woo Son.)

- Source: https://appshunter.io/ios/app/timer45-app/id1219208204 (this page in markdown: same URL + `.md`)
- Developer: [Chang Woo Son](https://appshunter.io/developer/1148001782)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 4.50/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 10.0 · 58 MB
- Languages: English, Japanese, Korean
- Released: 2017-04-10
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/timer45-app/id1219208204/reviews.md

## What is Timer45 App?

Simple yet sensible timer app.
Tired of many Timer apps so far? This app will give you satisfaction :)

Characteristic
- Simple start / end
: Press the button at the bottom of the main screen. It's easy to get started.

- Sensational design
: Please come to the main screen with simple yet sophisticated design.

- Manage many Timer lists
: You can create multiple timer lists. Use multiple lists alternately.
: The topmost item is automatically selected on the main screen.

- Detailed notification settings
: It is possible to repeat setting in days and weeks.

- Optimal settings for interval movements
: You can set set, exercise time, and break time respectively.
: Repeat as many times as set.

- Apple Watch support
You can also enjoy the timer in Apple Watch.

- Various theme support
: In addition to Original theme, enjoy Dark and White theme (iOS 10.3 or later)

- Health Kit support
: It works with the calories of Apple's health function.

## Key features

- Simple start/end button
- Sophisticated design
- Multiple timer list management
- Detailed notification settings
- Interval movement optimization
- Apple Watch support
- Health Kit integration


## Frequently asked questions about Timer45 App

### What is Timer45 App?

Timer45 App is a simple yet sophisticated interval, Tabata, and exercise timer. It allows users to manage multiple timer lists, set detailed notifications, and optimize settings for interval movements.

### Does Timer45 App support Apple Watch?

Yes, Timer45 App supports Apple Watch, allowing users to enjoy the timer directly on their wrist.

### How does Timer45 App integrate with Health Kit?

Timer45 App integrates with Apple's Health Kit to work with calorie data, providing a more comprehensive view of your workout's impact.

### What are the theme options in Timer45 App?

Timer45 App offers various theme support, including Original, Dark, and White themes, compatible with iOS 10.3 or later.

### Is Timer45 App free to use?

Yes, Timer45 App is available for free on the App Store.

### What is the update frequency for Timer45 App?

The latest version of Timer45 App is 3.1.0, last updated on January 28, 2019. While the last update was in 2019, the app remains functional for its core purpose.

### What devices is Timer45 App compatible with?

Timer45 App is compatible with iPhone, iPad, iPod, and Apple Watch devices.

### What is the age rating for Timer45 App?

Timer45 App has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 1 release)

### 3.1.0 — 2019-01-28

We will introduce you to a variety of new features including new interfaces soon.
A new version will be available over the next few weeks, so please wait a moment!

## Apps similar to Timer45 App

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [ProtoFit: Timer for Workouts](https://appshunter.io/ios/app/protofit-timer-for-workouts/id1533252185) | 5.0 (7) | Free | Health & Fitness |
| [Interval Timer Pro+](https://appshunter.io/ios/app/interval-timer-pro-plus/id1559020398) | 1.0 (1) | Free | Health & Fitness |
| [GymFit - Interval Tabata Timer](https://appshunter.io/ios/app/gymfit-interval-tabata-timer/id1263610072) | 4.6 (17) | Free | Health & Fitness |
| [Tabata HIIT Workouts timer app](https://appshunter.io/ios/app/tabata-hiit-workouts-timer-app/id1644082144) | 2.0 (2) | Free | Health & Fitness |
| [Calisthenics Coachy](https://appshunter.io/ios/app/calisthenics-coachy/id1534754095) | 4.8 (133) | Free | Health & Fitness |
| [Interval Timer - Intervallo](https://appshunter.io/ios/app/interval-timer-intervallo/id1537302534) | 5.0 (3) | Free | Health & Fitness |

## More apps by Chang Woo Son

- [AD-Planner - Beautiful Todo](https://appshunter.io/ios/app/ad-planner-beautiful-todo/id1202880947)
- [AD-Review: Movie & Book Review](https://appshunter.io/ios/app/ad-review-movie-and-book-review/id1231913394)
- [Moop](https://appshunter.io/ios/app/moop/id1464896856)
- [Commuter Pass](https://appshunter.io/ios/app/commuter-pass/id1484471171)
- [Affiliate Master](https://appshunter.io/ios/app/affiliate-master/id1502381236)

All apps by Chang Woo Son: https://appshunter.io/developer/1148001782

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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 2026-06-10.*