# Intrvl - Interval timer for multiple sports > Customizable interval timer for sports, tracking active time and calorie burn. (iPhone/iPad app by G Fuller.) - Source: https://appshunter.io/ios/app/intrvl-interval-timer-for-multiple-sports/id1241774277 (this page in markdown: same URL + `.md`) - Developer: [G Fuller](https://appshunter.io/developer/1067631846) - Category: Health & Fitness - Price: Free - Rating: 2.50/5 from 4 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 36 MB - Languages: English - Released: 2017-06-22 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/intrvl-interval-timer-for-multiple-sports/id1241774277/reviews.md ## What is Intrvl? Intrvl lets you track your workouts and save them to the Health app for any interval sport available. This gives accurate calorie tracking for your sport as, for example, boxing for 5 mins is very different to cycling. The settings screen allows you to customise - Interval time - Resting time (this could also be classed as 'low interval' time for HIIT) - Warm up time - Stretching time (after the warmup) - Preparation time (duration of time after warm up and stretching to prepare for the start of the workout) - Interval count (amount of intervals you wish to train) Some of these can be set to 0 (like warm up time) if you do not want to do one. Intrvl is smart enough to only count the time that you are working (warmup & interval time) to your actual workout. Your activities can be saved and counted towards your activity rings. Intrvl has a clean interface with the user in mind, numbers can be seen from a distance while training and so on. Smart haptics (vibrations on the watch) and notification sound levels come as standard as some sports are more strenuous than others. The watch app comes with the ability to lock the screen and unlock using the digital crown for sports where you may accidentally press an undesired button. Settings can be modified both on the watch and the phone app for convenience. Your heart rate and active energy burn are tracked during your workout when using the watch app. I hope you enjoy using this app as much as I have enjoyed building and using it myself for training. If there are any requests, feedback notes or issues please email me direct at gareth-fuller@hotmail.co.uk. Your feedback is what can take a good app to a great one!! :D ## Key features - Customizable interval, rest, warm-up, and prep times - Accurate active time and calorie tracking - Health app integration - Smart haptics and notifications - Watch app screen lock - Settings adjustable on watch and phone ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/intrvl-interval-timer-for-multiple-sports/id1241774277/reviews.md ### 1/5 — Won’t work *2020-09-21* This app worked great until I updated the software on my phone and watch. Now I can’t get it to start on my watch ### 2/5 — Abandonware? *2020-01-17* This is one of the best looking interval/tabata timers I’ve found. I had a question about the paid vs free feature set as well as a simple general question (I couldn’t find any documentation anywhere) so I emailed the dev twice. No response either time. I see there’s been no update to the app in 2 years so I’m guessing this is abandonware. Sad. If it works for you - cool. Otherwise, caveat emptor. ## Frequently asked questions about Intrvl ### How does Intrvl track calorie burn accurately? Intrvl provides accurate calorie tracking by differentiating between various sports and their intensity, such as comparing boxing for 5 minutes to cycling for the same duration. It focuses on tracking the actual time spent in warm-up and interval periods for your workout. ### Can I customize the workout structure in Intrvl? Yes, Intrvl offers extensive customization. You can set specific times for intervals, resting, warm-up, stretching, preparation, and the total number of intervals. Many of these can be set to zero if not needed for your specific workout. ### Does Intrvl integrate with Apple Health? Yes, Intrvl allows you to save your workouts and have them counted towards your activity rings in the Health app. It tracks your heart rate and active energy burn when using the watch app. ### What makes Intrvl's interface user-friendly for training? Intrvl features a clean interface with large numbers visible from a distance, ideal for use during intense training. It also includes smart haptics and adjustable notification sound levels to suit different sports. ### How does the watch app prevent accidental presses during workouts? The watch app includes a screen lock feature that can be activated and deactivated using the digital crown. This is particularly useful for sports where accidental button presses might occur. ### What is the update frequency for Intrvl? Intrvl was last updated on August 7, 2017, with version 1.4. The initial release date was June 22, 2017. Users can email the developer directly for feedback or issues. ### What is the user sentiment for Intrvl based on ratings? Based on the provided data, Intrvl has a rating of 2.5 stars from 4 ratings. This suggests a mixed to negative user sentiment, with potential areas for improvement. ### Is Intrvl available on multiple platforms? The provided data indicates that Intrvl has both a phone app and a watch app, suggesting compatibility with devices that support these platforms, likely iOS and watchOS. ## Version history (last 1 release) ### 1.4 — 2017-08-07 This app has been updated by Apple to display the Apple Watch app icon. fix bug with sound player that crashes app on workout screen --- *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.*