Subintervals

1.21.1

Inaki Arroyo

4.60

217 reviews

5,000+
Downloads

Free

The intervals.icu mobile app

Download from Google Play Also on the App Store

Subintervals is an independent Android companion app that turns your intervals.icu data into actionable training insights. It delivers detailed activity visuals and interactive graphs, with seamless sync to intervals.icu for up-to-date information, created by an enthusiast as a complementary tool to the official platform.

Pros & Cons

Strong 4.8 rating from 97 users
Active growth with 609 new downloads in the last 30 days
Seamless sync with intervals.icu for up-to-date data
Detailed, interval-focused visualisations and analytics
Internationalization with 8 languages

Does not include built-in workout timers or interval templates (e.g., timer, interval, HIIT)
Lacks explicit workouts/exercises or circuit tracking features

About Subintervals

Subintervals is a health & fitness app developed by Inaki Arroyo.

Download Statistics

Subintervals has been downloaded 9.9 thousand times. In the last 30 days, the app was downloaded 760 times.

User Ratings

Subintervals is rated 4.60 out of 5 stars. The rating is based on 220 ratings.

App Information

Subintervals is FREE to download. The APK download size is 95.77 MB. The latest version available is 1.21.1. The last update was on September 11, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play November 2024.

Description

Elevate Your Training with Subintervals

Subintervals transforms your intervals.icu data into actionable insights. This app brings your training activities, events, and performance metrics to life through detailed displays and interactive graphs. Customise and control your data for a tailored analysis, and seamlessly sync with intervals.icu for up-to-the-minute information.

Key Features:
- Detailed visualisation of activities and events.
- Dynamic, interactive graphs for performance tracking.
- Effortless sync with intervals.icu.

Please note that it is an independent application developed by an enthusiast keen on providing a complementary tool to the official platform.

Recent changes:
Improvements
- Activity details now include Splits, gear, and improved chart tooltips.
- Fullscreen maps add splits, elevation, and synced scrubbing.
- Activities now load older history as you scroll.
- Profile adds activity progress and wellness metrics.
- New Totals view for distance, time, elevation, sports, and zones.

Bug Fixes
- Fixed chat composer sizing and wrapping.
- Fixed chart scrubbing and Activities calendar empty states.

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More data about Subintervals

Price	Free to download
Total downloads	9.9 thousand
Recent downloads	760
Rating	4.60 based on 220 ratings
Ranking	Not ranked
Version	1.21.1
APK size	95.8 MB
Number of libraries	?
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Also available on the App Store

Subintervals

Inaki Arroyo Nebreda

5.0

Free

2 ratings

Alternative downloads for the Subintervals app

Subintervals compared with similar apps

Common keywords of similar apps

Activities Subintervals Data Events Performance Metrics Detailed Interactive Graphs Sync Splits Chart Elevation Scrubbing Fixed App Training Activity

Keywords missing from this app

Interval Timer Hiit Workout Tabata Workouts Time Timers Intensity Font Features Heart Rate Create High Free Seconds Simple Rest Color Fitness Screen Recent Exercise Display Intervals Custom Sound Pro Running Easy Gym Boxing Crossfit Session Set Background Circuit Gtii Tracking Advanced Sets Work Voice Music Device Share

Google Play Rating history and histogram

Rating history

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200

Downloads over time

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Subintervals has been downloaded 9.9 thousand times. Over the past 30 days, it averaged 25 downloads per day.

Changelog of Subintervals

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Developer information for Inaki Arroyo

Inaki Arroyo

subintervals@inakiarroyo.com

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Comments on Subintervals for Android

★★★★☆ Rene Rivera · Feb 2, 2026

It's a wonderful interface to intervals.icu. The stats and tracking are clear even on a tiny phone screen. Some things, like adding some activities is easier in this app than directly in Intervals. There are a few things I wish it had. I hope that over time they get added as the author is active and responsive in the Interval forums. There are some minor bugs, like discrepancy between Intervals and this on the profile. Which is why I'm giving it a 4, for now.

★★★★★ Gustavo Stocchero · Aug 20, 2026

The app displays information in a beautiful way and is a great companion to rhe intervals.icu website.

★★★★★ Christian Dietiker · Apr 27, 2026

Installed this app after Daily TSS stopped working. Works beautifully! It has definitively more features that I need (like the workout builder), and its interface is very user-friendly. Kudos for not showing any ads 👍

★☆☆☆☆ John Charnock · Feb 8, 2026

Won't show recent Strata data, something about privacy

★★☆☆☆ bobotea · Sep 20, 2025

For some reason my activities do not load and im not able to see data for them

★☆☆☆☆ Josh · Jun 6, 2026

Probably a nice app if the bottom button bar weren't hidden behind the android 3-button nav bar.

Google Play Rankings for Subintervals

This app is not ranked

Technologies used by Subintervals

14 permissions

Subscribe to see full permission and library details

Trust & Safety: The app requests a broad set of permissions including location (coarse and fine), network and internet access, storage (read/write), biometric usage, and in-app billing. It also references a dynamic receiver not exported. This level of permission access is common for apps that sync with an external platform and manage local data; users should review the privacy policy and permission usage to assess safety and privacy implications.

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Subintervals

The intervals.icu mobile app

Pros & Cons

About Subintervals

Download Statistics

User Ratings

App Information

Technical Requirements

More data about Subintervals

Also available on the App Store

Alternative downloads for the Subintervals app

Subintervals compared with similar apps

Common keywords of similar apps

Keywords missing from this app

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Alternatives without in-app purchases (16)

More from Inaki Arroyo

Google Play Rating history and histogram

Downloads over time

Changelog of Subintervals

Developer information for Inaki Arroyo

Share Subintervals

Comments on Subintervals for Android

Google Play Rankings for Subintervals

Technologies used by Subintervals