# QZ Fitness — Unlock your bike/treadmill! > Connects home exercise equipment to virtual fitness apps and reads heart rate data. (iPhone/iPad app by Roberto Viola.) - Source: https://appshunter.io/ios/app/qz-fitness/id1543684531 (this page in markdown: same URL + `.md`) - Developer: [Roberto Viola](https://appshunter.io/developer/951920407) - Category: Sports, Lifestyle - Price: $6.99 with in-app purchases - Rating: 4.80/5 from 839 App Store ratings · 453 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 73 MB - Released: 2020-12-10 - Data updated: 2026-09-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/qz-fitness/id1543684531/reviews.md ## What is QZ Fitness? This application is developed independently. It is not affiliated with, endorsed by, or sponsored by Decathlon or Domyos. QZ is not affiliated with or endorsed by any subscription service or maker of exercise equipment. Have you got a bike (echelon, flywheel, proform, i-console yesoul, decathlon, domyos, keiser, ...) or a Domyos (Decathlon) / Horizon / Proform treadmill and you want to join to zwift? This app allows you to give a second life to your machine! Also ellipticals and rowers machinery are supported now! Simply connect your smartphone to the treadmill/bike and zwift/peloton/fulgaz/rouvy will recognize it! Also this app allow you to use HealthKit to read your heart rate direct from your Apple Watch or any Heart Rate Bluetooth Belt. This metric will also be saved in your workout! Compatible machineries: - all the Echelon bikes (please check the firmware compatibility https://robertoviola.cloud/2025/07/22/how-i-built-qz-and-how-echelon-is-now-breaking-it/ ) - all the Domyos bikes - all the Domyos treadmills - all the Domyos elliptical machinery - Smart Row Rower - Echelon Rower (please check the firmware compatibility https://robertoviola.cloud/2025/07/22/how-i-built-qz-and-how-echelon-is-now-breaking-it/ ) - Concept Rower 2 - Yesoul S3 (M3 is currently on testing, if you have one, contact me) - Sportstech bikes - Inspire bikes - Schwinn IC4 and Bowflex C6 - Toorx bikes and spinbikes - Fassi treadmills - all the Proform bikes without a tablet builtin - Proform treadmills - Flywheel bike (the calibration tool is here https://ptx2.net/apps/flytest/ ) - JK Fitness treadmill - Toorx treadmills - Sole elliptical - Chrono bike - NPECable - and much more! ask me by email about the compatibility If you want you can join the Swag Bag auto-renewing subscription through an In-App Purchase in order to help me in the development of the app! • an auto-renewable subscription • 1 month ($1.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. • Privacy policy: https://robertoviola.cloud/privacy-policy-qdomyos-zwift/ • Licensed Application end user license agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Connects to Zwift, Peloton, Fulgaz, Rouvy - Supports bikes, treadmills, ellipticals, rowers - Reads heart rate from Apple Watch/Bluetooth belts - Saves heart rate data to workouts - Compatible with numerous brands ## Pricing and in-app purchases Base price: $6.99. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Swag Bag | $1.99 | per month | ## Chart rankings - #3 in Top Paid · Sports (US App Store) ## What do users think of QZ Fitness? Overall sentiment: positive **Pros** - 🚀 Seamless connectivity - 🔒 Excellent support from developer - 👍 Customizable metrics display - 🚀 Unlocks functionality of older equipment - 👍 Integrates with various fitness apps - 👍 Affordable alternative to expensive subscriptions **Cons** - 🐛 Occasional connectivity issues - 🔧 Steep learning curve for some users - 🐛 Inconsistent performance on certain devices **Commonly reported bugs** - Resistance not syncing correctly with some bikes - Metrics not updating in real-time for some users **Most requested features** - Family sharing option - Improved user interface design - Automatic data sync with more fitness platforms ## Recent user reviews (10 of 453) All indexed reviews: https://appshunter.io/ios/app/qz-fitness/id1543684531/reviews.md ### 5/5 — Incredible Features and Support! *2026-08-27, version 2.20* QZ is an amazing app and has completely changed how I use my fitness equipment, particularly with Peloton. I use it with both my bike and treadmill, and it’s made the whole setup so much more seamless. What really stands out is the support from the developer. Roberto has been incredibly helpful, responsive and genuinely invested in making everything work properly. QZ has allowed me to get so much more out of equipment that otherwise wouldn’t have had this level of integration with Peloton. I honestly wouldn’t have been able to get my setup working the way it does without QZ. One of the best purchases I’ve made on the app store for my training! ### 5/5 — Worth it! *2026-08-24, version 2.20* Works great, can tailor to your needs. Small learning curve with Echelon bike but a quick email to the developer had the app working with the bike like a charm. Thanks! ### 5/5 — Please make some videos or manual *2026-08-24, version 2.20* This app maybe is the best but have a very poor user interface and terrible instructions to setting this up. I’m still not able to get it working. ### 5/5 — Super application ! *2026-08-21* Super application qui redonne vie à vos appareils ! Roberto reste abordable pour vous trouver des solutions en cas de besoin. **Developer response:** Thanks! ### 5/5 — Does almost anything! *2026-08-17, version 2.20* It may seem a little complicated, but that is because you can almost configure it to connect anything. The developer support is 2nd to none and Roberto will help you set it up exactly as you require. ### 5/5 — This app is great! *2026-08-11, version 2.20* I bought an Echelon EX-15 used on Facebook marketplace, and didn’t want to pay for their app. After some research online, I found a few people mentioning this app, and thought it was worth a try. I had some minor trouble setting it up, but it was because all my Bluetooth permissions weren’t enabled. Once I fixed that, I was up and running in no time. The little dashboard is so easy to use and gives me all the details I want. I never write reviews, but am just so happy with this app I wanted to let others know how great it is! ### 5/5 — Excellent app and support *2026-08-07, version 2.20* A great app to allow me to use my peloton with other apps such as Mywhoosh. When I struggled to get it to work, the support was instant and got it working straight away. Fantastic work thanks ### 5/5 — Fix Power Calculation *2026-08-04* Great app. I am using a Spinning bike (Gallant Comnect Max) and I was able to adjust the Wattage Calculation and now my trainings make much more sense. **Developer response:** Thanks! ### 1/5 — Doesn’t connect *2026-07-29, version 2.20* Brand new burdock track treadmill and it won’t connect…kept connecting to our tv and refusing to connect to anything else. ### 5/5 — Superb *2026-07-25, version 2.20* Game changer - enabled automatic incline sync from Zwift to my Horizon treadmill. Super easy to set up - everything connected seamlessly (treadmill + heart rate monitor) & immediately recognised by Zwift. Took 5 minutes to set up compared to about 1 hour trying to connect the treadmill / Zwift without this app. ## Frequently asked questions about QZ Fitness ### What does the QZ app do? The QZ app acts as a bridge, allowing you to connect your compatible home exercise bike, treadmill, elliptical, or rower to popular virtual fitness platforms like Zwift, Peloton, Fulgaz, and Rouvy. It essentially gives your existing equipment a second life by enabling it to be recognized by these training apps. ### What exercise equipment is compatible with QZ? The app supports a wide range of equipment, including many Echelon bikes and rowers, Domyos bikes, treadmills, and ellipticals, as well as Proform bikes and treadmills, Concept Rower 2, and several other brands. Specific compatibility details and firmware checks are available on the developer's website. ### How does the app handle heart rate monitoring? QZ can integrate with HealthKit to read your heart rate directly from your Apple Watch or any Bluetooth heart rate belt. This heart rate data is then saved within your workout logs, providing a more comprehensive record of your training sessions. ### Is the QZ app free to use? The app is free to download and use for its core functionality of connecting your equipment. However, there is an optional auto-renewing subscription called the 'Swag Bag' available through an in-app purchase to support the app's development. ### Can I use this app with my existing exercise bike and Zwift? Yes, if you have a compatible exercise bike (such as Echelon, Proform, or Domyos) and want to use it with Zwift, this app is designed for that purpose. It allows Zwift to recognize your bike's performance metrics, enabling you to participate in virtual rides. ## Version history (last 5 releases) ### 2.21 — 2026-09-02 New Equipment Support Added support for 50+ new devices and protocols, including: Ultrasport F-Bike Pro, Kingsmith X21, Xplova Noza One, Keep Bike, Echelon Row 7s, Magee T600 ECO Smart Trainer, SmartRow V3, LifeSmart TM55, Volava, CARE SportsPlus rower, TOPUTURE TP6 and TEB, ProForm 105 CST, Sperax RM02, WaterRower USB, Van Rysel RCR, Freebeat Fit via USB/UART, MOK Fitness S10 Ultra, OpenBikeControl via UDP/mDNS, MRK-S36C ERG control, Adidas Horizon incline support. New Features Apple Watch rowing distance and total calories now written to HealthKit Heart rate from another QZ instance can be written to Apple Health on iPad Configurable Live Activity metrics on iOS Upload workouts directly from Workout History Grade-adjusted pace tile for treadmill running Heart rate zones and live speed/incline/heart charts for treadmills Treadmill auto-adjust speed by target power and force-running activity setting Custom gear resistance table for Virtual Shifting Cadence gain/offset applied to Apple Watch cadence; speed derived from cadence on Fake Treadmill Resistance +/- controls added to floating UI Custom watt tables for CSC and SmartBike resistance Garmin Lap Workouts, cadence targets, and secondary step targets Post-workout RPE/Feel popup saved to FIT files FIT files enriched with target zones, training effect, and session statistics Estimated watts from pace for WDK rowers and stroke-length calculation Zwift Click v1 and v2 simultaneous support Multilanguage Web Views and persistent workout editor device type HealthFit Android override, Xiaomi content helper, and Echelon Unlock for Peloton on iOS Bug Fixes Fixed HR PID boundary handling, race conditions, and stuck single-gear programs Fixed division-by-zero crashes, 10x calorie reporting, Apple Silicon startup crashes, OAuth secrets in logs, and doubled iOS Health cadence Fixed workout history imperial distance, editor key handling, and Carbon TLX disconnections Improved FTMS/Sole fallback and M3i iOS workout stability Fixed FS treadmill incline limits/override and ApexBike metrics parsing Fixed iOS search layout and Zwift Click one-direction handling Fixed Garmin workout visibility, special-character login, and workout/CORE synchronization Fixed FTMS elliptical, CARE/SportsPlus rower, Toputure TEB5, Nautilus B628, and MRK-S36C handling Fixed treadmill live charts, Adidas incline mapping, and Zwift Ride gear defaults Fixed FIT sport selection and missing preview inclination Deleted FIT files are now removed with their workouts; invalid Health Connect HRV samples are ignored Fixed WaterRower iOS build integration, Android/FitPro packaging, UnsatisfiedLinkError, and keyboard shortcuts Improved Freebeat telemetry/serial handling and V-BLE-R FTMS rower detection Fixed Wahoo KICKR RUN commands, speed display, and rapid-press accumulation MOK Fitness S10 Ultra now computes power from resistance and is correctly marked as non-ERG; fixed its setting count ### 2.20 — 2026-03-24 - Garmin Connect Integration added - Peloton Walking Treadmill classes handled and API improvements - Wifi support for Rouvy and Mywhoosh - Intervals.icu integration added - Workout editor added - Workout history added - Voiceover added - Air Pods Pro 3 Heart rate support - Mywhoosh Rower compatibility added - Automatic virtual shifting - Peloton auto sync improved - Apple health without Apple watch - Live Activities - Elevation on apple health for treadmills - ERG mode improved for device that doesn't have ERG mode implemented - Technogym Ride supported ### 2.19 — 2025-07-09 - Peloton rides fixed - proform treadmill 995i added - proform carbon tls added - Start and stop icon in the 3d map - fix for Concept PM5 Rower - BODY Bike Smart+ integration - Apple watch integration crash fixed - Kingsmith treadmill Runna integration - Kinetic trainer control added ### 2.18 — 2025-06-11 - new peloton login - zwift play over dircon - tacx improvement - core sensor supported - a lot of new devices supported! ### 2.17 — 2024-10-14 Auto Inclination on Zwift for all the treadmills Zwift Ride compatibility added with virtual gears to all the platforms (Zwift, Indievelo, Rouvy and Mywhoosh) ## Apps similar to QZ Fitness | App | Rating | Price | Category | | --- | --- | --- | --- | | [ROUVY Companion App](https://appshunter.io/ios/app/rouvy-companion-app/id1585185144) | 2.5 (48) | Free | Sports | | [ROUVY: Real Indoor Cycling App](https://appshunter.io/ios/app/rouvy-real-indoor-cycling-app/id1478239111) | 3.8 (519) | Free | Sports | | [Canyon](https://appshunter.io/ios/app/canyon/id6443914990) | 4.8 (2,541) | Free | Sports | | [MyWhoosh Link](https://appshunter.io/ios/app/mywhoosh-link/id1561724525) | 2.2 (33) | Free | Sports | | [Running & gait analysis - Ochy](https://appshunter.io/ios/app/running-and-gait-analysis-ochy/id1531481638) | 4.5 (284) | Free | Sports | | [Stryd](https://appshunter.io/ios/app/stryd/id938379154) | 3.9 (239) | Free | Sports | ## More apps by Roberto Viola - [ARadar](https://appshunter.io/ios/app/aradar/id1625452581) - [Ultratrack](https://appshunter.io/ios/app/ultratrack/id6443868636) - [Greppy](https://appshunter.io/ios/app/greppy/id6477757109) - [ClimbTracker Watch App](https://appshunter.io/ios/app/climbtracker-watch-app/id6479173765) All apps by Roberto Viola: https://appshunter.io/developer/951920407 ## Related topics [qz zwift](https://appshunter.io/ios/topics/qz-zwift) --- *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 2026-09-04.*