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Android Apps > Health & Fitness > Complex Timer
Complex Timer icon

Complex Timer

by deslomator · Health & Fitness · Free
On Google Play since December 2016 · Data updated 2026-10-25
Google Play

Complex Timer is made and published by deslomator. AppBrain is an independent app data site and isn't affiliated with deslomator. The app name, icon, screenshots and description belong to deslomator and are shown as published on Google Play.

AppBrain's verdict

EstablishedWell rated
Rating on Google Play
4.44
649 ratings
Installs
76 thousand
Last updated
March 25, 2025
Ads
No ads
Size
1.75 MB

Complex Timer has 76 thousand installs. Users rate it well: 4.4 stars from 649 ratings.

User feedback

Ratings and reviews on Google Play

Comments on Complex Timer for Android

★★★★★ Ryan Zerbe · Jul 15, 2020
Awesome simple app. I use this for a couch to 5k program. I had to add them all manually, but exactly what I was looking for. I use GPS and HR from another app, so just the timers is what I needed. If there was one thing I'd like is to add another warning timer. You only get 1, and I use that for around halfway marks in my runs, but for longer runs, being able to add more say every quarter would be cool.
★☆☆☆☆ Jin Wu · Nov 5, 2020
This timer is completely useless because it doesn't make any sounds! Who would stare at the timer screen when working?
★★☆☆☆ Peter Yates · Jul 24, 2026
For some reason it doesn't even try to request storage permissions to access notification sounds on this Oppo. It's almost useless to me without the custom sounds. The timer is good but the sounds are bad.
★★☆☆☆ Ursh anabi · Nov 12, 2024
I used to love this timer, nothing else like it. But now that it has "sets" it's effectively broken as you can't move activities around as the "set" doesn't go with it as you move the activity and the app won't let you run it without it being set perfectly. But you also can't delete sets, so if you add an activity then delete it there is a set left over

Google Play Rating history and histogram

520
34
17
17
60

Store listing

By deslomator, from Google Play

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

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Screenshots by deslomator, from the Google Play listing
Description by deslomator Written by the developer, not by AppBrain. Click to read.
Create custom countdown patterns exactly the way you like.

After trying several apps and failing to find one that suited all my needs, I decided to write Complex Timer.
Initially developed for sport climbing training: intermittend dead-hangs, fingerboard, or strength-endurance methods, it is very useful if you perform sport training methods like HIIT (high intensity interval training), cross fit, cross training, running, tabata, etc.., Also to control your pauses at work, while studying or rehearsing an exam and for cooking.

Features:
- Full German translation, credit goes to Thomas Grittner and Stefan Weber
- Russian translation
- Backup and restore your sessions
- Copy a session to use it as a template for a new one
- Group countdowns that repeat several times
- Nest a group inside another one to create complex patterns
- Move countdowns or whole groups up/down or even inside/outside groups
- Copy countdowns or groups to save time
- Goup and countdown descriptions are customizable
- Set the type of alarm that will be played before a countdown starts, so that you know if a pause or a work segment comes next
- Set an alarm to warn you before the time is up
- Choose among 9 different colors for each countdown
- Skip any particular repetition(s)
- Choose whether the session will pause when a countdown ends
- Skip backward/forward while running a session
- Keep the screen on while running a session
- See the complete session in list form to have a visual reference of what it's going to look like, and use it to skip to any particular countdown
- Run, pause and reset the session from the lockscreen notification
- Receive an alarm that indicates the whole session has ended
- Maximize the counter for better readability and use basic control gestures
- Custom notifications: choose your own sounds from your device's storage, or mute any of them
- Custom relative volume: when listening to music while using the app, you can lower the notifications volume relative to the music volume
- The total work time for each Session is displayed in the main screen
- Option to vibrate instead of/in addition to playing a sound. Good for very noisy or very quiet environments
- Add random variation to any Countdown inside the limits you establish.
- Navigate to any desired Countdown using a Seek Bar.
- Skip back/forward to any moment in the current Countdown, even while running, using a Seek Bar
- Mute the nofications while running a Session
- Use text-to-speech to know how much time is left or hear the next Countdown description in your own language (contact me if you want your language to be supported)
- Share one or more Sessions with other users via email, instant messaging, etc.
- Choose between showing the elapsed time or the remaining time for each interval.

Permissions: it needs Storage permission if you want to backup and restore your sessions.

Recent changes:
Compatibility with latest Android versions. Some bugs fixed.
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
8
App size
1.75 MB
Needs Android
4.1+
Content rating
Everyone

Technologies used by Complex Timer

9 permissions · 8 libraries
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
0.24-20250325_103100
Launched
December 2016
  • Mar 25, 2025UpdateVersion 0.24-20250325_103100
  • Mar 19, 2025UpdateVersion 0.24-20250319_174418
  • Jun 20, 2023UpdateVersion 0.24-20230620_133655
  • May 29, 2023UpdateVersion 0.24-20230529_194801
  • Jul 24, 2021Installs50,000+ installs
Show all changes Show fewer

Alternatives

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Installs

Tracked by AppBrain
Last 30 days
180
Play install range
50+ thousand
Launched
December 2016

Installs over time

Complex Timer has been installed 76 thousand times. Over the past 30 days, it has been installed 180 times.

Rankings

Google Play top charts

Google Play Rankings for Complex Timer

This app is not ranked

About the app and developer

About Complex Timer

Complex Timer is a health & fitness app developed by deslomator.

Install Statistics

Complex Timer has been installed 76 thousand times. In the last 30 days, the app was installed 180 times.

User Ratings

Complex Timer is rated 4.44 out of 5 stars. The rating is based on 650 ratings.

App Information

Complex Timer is freely available from Google Play. The app size is 1.75 MB. The latest version available is 0.24-20250325_103100. The last update was on March 25, 2025.

Technical Requirements

Complex Timer requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since December 2016.

App Performance Report

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Developer information for deslomator

deslomator

mylittlerobotitos@gmail.com

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Frequently asked questions about Complex Timer

Is Complex Timer free?

Yes. Complex Timer is free on Google Play.

Is Complex Timer still available?

Yes. Complex Timer is on Google Play, and the last update we saw was on March 25, 2025.

Does Complex Timer contain ads?

No. Google Play does not list Complex Timer as containing ads.

What Android version does Complex Timer require?

Complex Timer runs on Android 4.1 and higher.

How large is Complex Timer?

Complex Timer is 1.75 MB.

Is Complex Timer suitable for children?

Google Play rates the content of Complex Timer as suitable for everyone.

How many times has Complex Timer been installed?

Google Play lists 50,000+ installs for Complex Timer.

How do people rate Complex Timer?

Complex Timer scores 4.44 out of 5 stars, from 649 ratings on Google Play.

Who made Complex Timer?

Complex Timer was developed by deslomator. It is listed in the health & fitness category on Google Play.

What are the best alternatives to Complex Timer?

People looking at Complex Timer also look at these health & fitness apps: Interval Timer: Tabata Timer, Timer Flow, Workout Timer - HIIT Tabata, Tabata Timer: Interval Timer, HIIT Timer: Tabata Workout.

Share Complex Timer

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Tabata Timer: HIIT Workout icon Tabata Timer: HIIT Workout
Interval Timer: HIIT & Tabata icon Interval Timer: HIIT & Tabata
Overview Alternatives History Reviews Rankings Technology
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