Last 30 days
Last 30 days
Avg per download
840 reviews
Last 30 days
Last 30 days
Avg rev. per download
840 reviews
Performance Insights
Category rankings
Competition level
Low competitionUnder 100K on both downloads and revenue — the kind of niche a small team can still take.
Tracked since
First seen December 2020 · 23 releases since
QZ Fitness is an iOS app ($6.99) by Roberto Viola in the sports category, holding #7 in the paid sports charts. It draws an estimated 1K downloads a month and holds a 4.8-star rating.
- Monetizes through in-app purchases priced at $1.99.
- Ships new versions about one a month.
- Latest version is 2.21, released September 2, 2026.
- 94% of ratings are five-star.
- Strongest in US, CA, GB.
- Downloads at 72.7 MB and requires iOS 12.0+.
- Rated 4+.
App details
- Version
- 2.21
- Release status
- Worldwide
- Age rating
- 4+
- Requires
- iOS 12.0+
- Size
- 72.7 MB
- Price
- $6.99
- First seen
- December 2020
- Top markets
- US, CA, GB
- Website
- Visit website
- Support
- Visit support
Release history
23 versions tracked
- Version 2.21Latest
- Version 2.20
- Version 2.19
- Version 2.18
- Version 2.17
- Version 2.15
- Version 2.14
- Version 2.11
- Version 2.10
- Version 2.9
- Version 2.8
- Version 2.7
Ships about one a month.
In-app purchases
1 product · United States
- Swag Bag (Monthly)Monthly$1.99
What users say
- 5.0
Great app, responsive developer
Updated review: I made a mistake and wanted to apologize. I didn’t know how the buymeacoffee website worked and thought it was a subscription contribution like patreon. It’s actually a one time fee, which I think is valid for the effort behind the app and the support given by the developer for free to whoever buys it. The app itself is great, especially with the newer functionalities that are being integrated, like 3D Maps for virtual GPX workouts, Zwift and QZ on the same iPad. I was wrong on my initial review and it wasn’t fair to the developer and to what the app delivers. Original review: The app itself is great, but the developer wants you to pay extra if you want newer functionalities, such as using QZ and Peloton on the same iPad, for example, on what he calls beta versions and takes a long time to release newer versions here in the app store (last one was more than 4 months ago). His words for me on the support community on Facebook were: “the $3,99 is not enough for all the development behind it” and “I will release a newer version in the app store when there is a major issue with the current version”. So unless you’re willing to buy the app here, then fund his development on Patreon monthly ($6) to have updates, think twice. Why not make the app more expensive instead so you know where you’re stepping into when you buy it? I appreciate the support and the app functionality as it is (definitely worth the 3.99 - I’d even pay more if it was more expensive), but I’m not adding another subscription to my already large list.
Reviewed on version 2.10
- 5.0
Best App to Connect Your Exercise Equipment To Peloton or Zwift!
As an avid user of both the Peloton and Zwift apps, I've long sought a solution that seamlessly links my exercise bike to these platforms. Fortunately, I stumbled upon an absolute gem: an app that not only effortlessly connects my exercise bike to Peloton and Zwift but also comes with unparalleled customer support. The brilliance of this app lies in its simplicity and reliability. With just a few taps, I can sync my exercise bike to both Peloton and Zwift, and the bike I bought was only $300 (Echelon EX-3, I didn't eve need to spend over a thousand dollars on a peloton bike to get the full peloton experience!). Whether I'm chasing personal records in Zwift's virtual landscapes or engaging in Peloton's energizing classes, this app ensures a seamless transition between platforms, allowing me to focus solely on my fitness goals. What truly sets this app apart, however, is the exceptional support provided by its creator. Whenever I encounter an issue or have a question about setup or functionality, I simply post my question on the creator's website. Without fail, I always receive a response resolving the issue on the same day. This level of dedication and responsiveness is a testament to the creator's commitment to customer satisfaction and sets a standard for excellence in app support. It is no surprise that this app has all 5 star reviews, it is well deserved!
Reviewed on version 2.15
- 5.0
Awesome app, even better service
Can’t say enough good things about this app. Firstly, it can integrate in so many different ways, and with so many devices, it’ll likely do whatever you need it to do. Personally, I needed an app that could connect to my indoor bike, grab all of its stats - speed, distance, cadence, watts, etc - and post them to Apple Health when my workouts ended. I also needed something that had an Apple Watch app so I could see those stats as I ride, and so that my rings would get closed properly. QZ does all of that perfectly and then some. But what I’ve been even more impressed by is the developer himself. I had tried so many different setups to accomplish what I was looking for, and none of them worked right, so before I had even downloaded the app I emailed him to see if QZ could do what I needed it to do. He responded to me within a few hours letting me know it could. Not only that, but as I’ve used the app we’ve corresponded about the various features and how they work, and within a few days he had made a couple of changes and added new settings based on my feedback. Unreal. If you’re looking for an app to help enhance your workout tracking - download QZ. Believe me, it’s worth it. 10/10
Reviewed on version 2.19
About QZ Fitness
2,681 characters
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/
Screenshots
5 iPhone screenshots
QZ Fitness iOS app monetises through in-app purchases. The current products and price points are listed in the in-app purchases table on this page.
QZ Fitness iOS app generates an estimated monthly revenue of $8K.
QZ Fitness iOS app download estimates are updated daily. The app maintains a 4.8-star rating based on 840 user reviews, indicating strong user satisfaction in the mobile app market.
QZ Fitness iOS app competes actively in the mobile app category. The app's performance metrics suggest significant growth potential in a low-competition segment.
You can download QZ Fitness iOS app from the App Store for iOS devices, requiring iOS 12.0 or later. The app offers in-app purchases for enhanced functionality.
View on App Store