# Complex Timer

> Very flexible interval timer that allows many ways to customize your sessions.

Canonical page: [https://chrome-stats.com/d/com.deslomator.complextimer](https://chrome-stats.com/d/com.deslomator.complextimer)

## Overview

- **ID:** `com.deslomator.complextimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** deslomator
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 75,659
- **Rating:** 4.47 / 5 (695 ratings)
- **Version:** 0.24-20250319\_174418
- **Last updated:** 2025-03-25
- **First published:** 2016-12-15
- **Publisher country:** ES
- **Size:** 2.50 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.deslomator.complextimer)
- **Privacy policy:** [https://github.com/deslomator/ComplexTimer/blob/main/Privacy\_Policy.md](https://github.com/deslomator/ComplexTimer/blob/main/Privacy_Policy.md)

## Description

**Complex Timer** is a versatile interval timer designed to accommodate a wide range of activities including sports training like HIIT, climbing, cross training, running, as well as work breaks, study sessions, exams, and cooking. Unlike other apps, it allows you to create highly customizable countdown patterns with multiple nested groups and repetitions.

Key features include customizable alarms, multiple color options, backup and restore sessions, text-to-speech support, the ability to skip or rewind intervals, and detailed session views. It also supports multiple languages and offers control from lockscreen notifications. Perfect for fitness enthusiasts, students, and professionals who want flexible and detailed session timing control.

## Rankings

- #251,084 — Overall

## Permissions and access

### Permissions

- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.READ_MEDIA_IMAGES`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.deslomator.complextimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Users praise Complex Timer for its flexibility, customization, absence of ads, and simple design, making it ideal for workouts and productivity. Common issues include problems with the 'sets' functionality, annoying or malfunctioning alarm sounds, lack of screen timeout override during sessions, and occasional UI bugs like timer display freezing in multi-window modes. Despite some usability hurdles and feature requests (like additional warning timers or enhanced sound options), most users find it a powerful, reliable interval timer appreciating developer support and ongoing improvements.

### Pros

- Highly customizable and versatile interval timer.
- No ads or in-app purchases, free to use.
- Simple and clean user interface, easy to setup and use after some learning.
- Ability to import/export and share routines with others.
- Developer responsiveness and app stability improvements.

### Cons

- Difficulty with the new 'sets' feature—unable to move activities with sets and no option to delete sets.
- Inconvenient or annoying alarm sounds; custom sound files don't always play properly.
- Screen timeout not overridden during workouts, making it hard to track progress without screen turning off.
- Timer display freezes or doesn't update correctly in split screen or multi-window modes until tapped again.
- Some confusing or unintuitive UI features; steep learning curve without comprehensive tutorial or consistent interface updates.

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.deslomator.complextimer)