# iMobileIntervals > Advanced interval workout builder and trainer with sensor integration and data sharing. (iPhone/iPad app by Ransom Weaver Design.) - Source: https://appshunter.io/ios/app/imobileintervals/id349553676 (this page in markdown: same URL + `.md`) - Developer: [Ransom Weaver Design](https://appshunter.io/developer/349553679) - Category: Health & Fitness - Price: $5.99 - Rating: 3.20/5 from 5 App Store ratings · 18 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 81 MB - Languages: American English - Released: 2010-01-08 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/imobileintervals/id349553676/reviews.md ## What is iMobileIntervals? Like some other apps in this category, iMobileIntervals has comprehensive data display, collection and sharing. With iMobileIntervals you can also: * Build sophisticated interval workouts with optional voice prompting.  * Use interval workouts from Garmin Connect, CadenceTV or iMobileIntervals online libraries * Display workout + YouTube videos on TV via Chromecast * Import ERG/MRC file directly via email or TrainingPeaks app * Control the WahooFitness KICKR & SNAP variable resistance bike trainers * Connect to practically any ANT+ or BluetoothLE sensor * Remote Display/Control (WahooFitness RFLKT on handlebars or Magellan Echo/Echo Fit on wrist) * Integrated FTP (Functional Threshold Performance) power and heart rate test * AirPlay display * Excellent accessibility for the visually impaired ----- Performance Data & Location ----- Bluetooth Low Energy sensors enabled (iPhone 4S/5/6/iPad 3) for BT LE HR, speed/cad and power All brands of ANT+ wireless stride sensors, speed sensors and powermeters are supported when using the WahooFitness ANT+ accessory or WahooFitness RFLKT+ display, including Suunto HRMs Uses GPS for speed/distance/pace if no stride, speed or speed-sending power meter is detected Direct upload of data and route to Strava, Garmin Connect, TrainingPeaks and iMobileIntervals.com Sync .fit or .tcx file to your Dropbox, or send via email Garmin Connect workout calendar integration ----- Run your workouts ----- Any arrangement of time-based intervals is possible Open ended or interval-based workouts Workout intervals graph for 4in+ displays workouts can have open-ended intervals that end on lap/split button press or (Garmin Connect only) heart rate above/below limit App "speaks" the upcoming interval for you for hands and eyes free operation Sophisticated management of workouts and training plans at imobileintervals.com (free) and Garmin Connect Ad Hoc workouts can be made in the app, no website needed View and select today's workouts from an iMi (website) training plan ----- Built-in iPod music player ----- Per-intensity-zone and per-workout music collections //////// MORE FEATURES ////////// Works when in background! Collect many hours of data, while interval prompting and music function normally Automatically post link to completed workouts in Facebook. Online workouts load over net, but no network connection needed to run Possible to make intervals that only use tones for prompting For each interval you can specify: - duration - descriptor - cadence - KICKR ERG watts, % FTP power or fixed resistance level - run pace - zone of intensity Displays current zone Heart Rate and Watts as calculated from threshold values Make your workouts public and share with other iMi users Flexible groups support collaboration, personal coaching, teams sharing training plans, and more Join or create a group and share workouts and training plans in your group Training plan timeline viewer/editor with drag and drop for building training plans at iMobileIntervals.com iCal feed of planned workouts Email notification of upcoming workouts in your training plans Note: Continued use of GPS running in the background can dramatically decrease battery life. However iMi only uses location services when a workout is actually in progress. Live telemetry and route tracking rely on GPS, but location services can be turned off and still successfully use the interval functionality or any sensor-based functionality in iMobileIntervals. ## Key features - Customizable interval workouts with voice prompts - Import workouts from online libraries and files - Control smart bike trainers (Wahoo KICKR) - Connect ANT+ and Bluetooth LE sensors - Display workout data on TV via Chromecast/AirPlay - Integrated FTP power and heart rate tests - Data sharing with Strava, Garmin Connect, TrainingPeaks ## Recent user reviews (10 of 18) All indexed reviews: https://appshunter.io/ios/app/imobileintervals/id349553676/reviews.md ### 5/5 — Straightforward *2018-03-12, version 3.23* I've been using this app (and the website) for years and nothing beats it for simplicity and ease of use. Create your own interval workout or use one of public ones. There's hundreds if not thousands of them. I use it with an iPhone 5 and a first gen Wahoo Kickr. I've had zero problems. ### 1/5 — Should still be in Beta *2017-02-09, version 3.18* Lots of glitches. I've simply had too many issues with this App. Sorry guys, this just isn't ready... ### 1/5 — Horrible, horrible interface *2016-06-16, version 3.15* I have attempted several times to use this app and have failed each time. It has taken me hours to figure out how to create a workout only to find out that repeating intervals are not possible unless you manually enter them in. Stay away.....far away. ### 1/5 — Feel cheated. *2015-06-09, version 3.11* Snatched this up when I saw integration with Garmin Connect. I have created dozens of workouts on Garmin. But I feel like I was duped. The app does not work with Garmin workouts that have distance-based intervals. Big letdown. Other smaller letdowns include the poor voice prompts and lack of auto pause. I want my $6 back! ### 5/5 — Perfect for Wahoo Kickr *2015-04-30, version 3.11* I have been looking for an app to generate erg commands to my Kickr trainer based on Sufferfest videos and my threshold power. This app is perfect. It upload detailed data, including cadence and heart rate from my generic (Jarv) sensors. Best few dollars I've ever spent!! ### 1/5 — Doesn't upload to Garmin Connect *2015-03-03, version 3.9* Contrary to description, the app does NOT upload to GC due to an authentication error. The dev claims this is due to Garmin changing the API, making 3rd party authentication impossible, yet other apps still manage to connect. ### 5/5 — Great application *2015-01-07, version 3.9* Simple and powerful application. Best for structured training sessions and interval training. Good support. ### 2/5 — Not yet worth $6 *2014-04-25, version 3.4* The app is mostly good, but some serious bugs keep it from being very useful. 1) During a field test ride, the communication with my RFLKT+ went wacky. The buttons worked, but no other data was displayed or recorded rendering my efforts useless for testing. 2) It will not connect to Garmin connect. It says my username/password is incorrect, but I have verified that it is not incorrect. ### 5/5 — If you own a KICKR, this is a must have app *2014-03-10, version 3.4* Great functionality. Great online community providing a large pool of workouts. Very responsive development team supporting the application. It's made this miserable winter of indoor cycle training bearable. Todd- MN ### 5/5 — Super for running too! *2014-01-18, version 3.3* This app is brilliant with intervals. Nothing else like it and really rocks the KICKR trainer in ERG mode. And now I can get the interval workout display on my wrist for runs using the Magellan Echo watch! So great! Also, the iOS7 update had a bug with the user logins, but they fixed that right away. ## Frequently asked questions about iMobileIntervals ### What is iMobileIntervals? iMobileIntervals is a health and fitness application designed for building and executing sophisticated interval workouts. It allows users to connect various sensors, control smart trainers, and analyze performance data. ### What devices does iMobileIntervals support? iMobileIntervals is available for iPhone and iPod Touch devices. It supports Bluetooth Low Energy sensors on iPhone 4S/5/6/iPad 3 and ANT+ sensors via compatible accessories. ### How much does iMobileIntervals cost? iMobileIntervals is a paid application, priced at $5.99. There are no in-app purchases mentioned for this application. ### Can iMobileIntervals be used offline? While online workouts can be loaded over the net, the app does not require a network connection to run workouts once they are downloaded or created within the app. ### Does iMobileIntervals have ads? The provided data does not indicate that iMobileIntervals contains advertisements. It is a paid application. ### How often is iMobileIntervals updated? The latest version of iMobileIntervals is 3.24, which was last updated on November 19, 2018. This suggests updates may not be very frequent. ### What is the age rating for iMobileIntervals? iMobileIntervals has an age rating of 4+, making it suitable for a wide range of users. The app focuses on training and data analysis. ### Can iMobileIntervals integrate with other fitness platforms? Yes, iMobileIntervals offers direct uploads of data and routes to Strava, Garmin Connect, and TrainingPeaks. It also integrates with the Garmin Connect workout calendar. ## Version history (last 5 releases) ### 3.24 — 2018-11-19 Update for KiCKR CORE trainer Fix Garmin Connect Auth, Workouts and Calendar Disable Garmin Connect Activity upload latest DropBox API ### 3.23 — 2018-01-30 Fix ERG/MRC import bug ### 3.22 — 2017-12-09 iOS 11 and iPhone 8/X compatibility ### 3.21 — 2017-05-29 Fix Garmin Connect login ### 3.20 — 2017-05-02 Fix Strava authentication bug, fix music access bug ## Apps similar to iMobileIntervals | App | Rating | Price | Category | | --- | --- | --- | --- | | [aktivity](https://appshunter.io/ios/app/aktivity/id1513755733) | — | Free | Health & Fitness | | [Shoreline Physical Therapy](https://appshunter.io/ios/app/shoreline-physical-therapy/id1472766487) | 5.0 (1) | Free | Health & Fitness | | [Forme Fitness Virtual](https://appshunter.io/ios/app/forme-fitness-virtual/id1640215347) | 4.3 (3) | Free | Health & Fitness | | [LIVE Valve Bike - Gen 1](https://appshunter.io/ios/app/live-valve-bike-gen-1/id1512027467) | 4.0 (12) | Free | Health & Fitness | | [HealthFit](https://appshunter.io/ios/app/healthfit/id1202650514) | 4.3 (32) | $6.99 | Health & Fitness | | [Velodash - Cycle together](https://appshunter.io/ios/app/velodash-cycle-together/id1329905651) | 4.3 (4) | Free | Health & Fitness | --- *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.*