# QZ Fitness — user reviews > 453 indexed App Store user reviews of QZ Fitness by Roberto Viola, rated 4.80/5 from 839 ratings. - Source: https://appshunter.io/ios/app/qz-fitness/id1543684531/reviews - App overview in markdown: https://appshunter.io/ios/app/qz-fitness/id1543684531.md - Rating breakdown: 5★ 785 · 4★ 17 · 3★ 8 · 2★ 6 · 1★ 23 ## 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 ## Newest reviews (18 of 453) ### 5/5 — Great Customer support *2026-07-23, version 2.20* Had issues with the app, wasn’t complicated and got instructions to fix and the app works as advertised. ### 5/5 — Très bon application *2026-07-16* Une bonne surprise cette application, j’ai été surprise de voir tout ce qu’elle prend en charge, Zwift, Runna et tout ce qui demande une connexion Bluetooth pas forcément compatible avec tous les équipements… QZ règle le problème… et de plus Roberto accompagne très vite en cas de besoin… je recommande activement. **Developer response:** Thanks! ### 5/5 — Fixed *2026-07-09, version 2.20* The developer was great and helped me fix the issue! ### 5/5 — Must have app! *2026-07-06, version 2.20* This app is amazing for anyone wanting to get the most out of their fitness equipment! Don’t get me wrong, takes a while to get used to it but once you’ve had a look at what works for you and ensured the tiles you prefer are what’s shown, it’s great! Support is also fab and any issues or questions are dealt with straight away! ### 5/5 — Appli parfaite et assistance réactive ! *2026-07-02* Application parfaite pour utiliser mon vélo Domyos avec Zwift. Quelques soucis de réglage venant de ma part mais l’assistance est incroyablement réactive et m’a aider à régler l’application ! **Developer response:** Thanks! ### 5/5 — Works extremely well. *2026-07-01, version 2.20* Excellent app, excellent support. ### 5/5 — Amazing unblocker! *2026-06-20, version 2.20* Very grateful this exists, the settings looked a little complex at first as it covers lots of hardware but it works really well and I didn’t have to actually do that much tinkering to get my set up going great. Roberto also replied to my questions very quickly and is a total gem! Worth every penny ### 5/5 — Works perfect with my elliptical on running apps *2026-06-18, version 2.20* I am forced to work out indoors since it is now over 110° in Phoenix. I paired the QZ app with my elliptical which at first had a few bugs that Roberto worked out with ease. Very happy now I can run indoors with my running apps. ### 5/5 — Great App! *2026-06-10, version 2.20* I had trouble setting this up. I contacted the developer and they responded within a few hours. App is now up and running with my peloton bike and it does exactly what I want wanted it to. Great app and fantastic support. ### 3/5 — It drains battery very fast *2026-06-09, version 2.20* I used on a iPad and only work on a rower for one hour. It drained 68% power. The battery log said I used 6 hours. No sense. ### 5/5 — Terrific app, even better support *2026-06-08, version 2.20* Not only is this an amazing app that’s saved me hundreds in getting started in indoor cycling but the support I’ve received in patching the app to suit my set up and goals has been amazing. ### 5/5 — Amazing! *2026-06-06, version 2.20* Great app and best support ever! ### 5/5 — Laufband Upgrade *2026-05-25* PR werden angenommen, man kann auf GitHub an der App mitgestalten, Fehler korrigieren, usw. Ich kann meine Trainings komplett selbst gestalten und muss mich nicht mehr auf die Trainings beschränken, die mit dem Laufband geliefert werden (Domyos Run 500). Ich kann jetzt mit meinem einfachen Laufband bestimmte Herzfrequenzzonen ansteuern, was ansonsten kostspieligere Geräte erfordern würde. Bin begeistert. ### 5/5 — Phenomenal! *2026-05-21, version 2.20* Have been using this app for years - works great and the support is better than any app I ever experienced. Love it! ### 5/5 — Endlich eine gute App für MERACH rower *2026-05-12* Aufgrund der vielschichtigen, unterschiedlichen Geräte erscheint die App zunächst etwas komplex. Nach einer Phase der Eingewöhnung jedoch verständlich und gut personalisierbar. Für das MERACH R50 auf jeden Fall eine Aufwertung im Vergleich zur originalen App…. Darüberhinaus ist Roberto absolut responsiv bei Problemen! Das wünscht man sich. Insofern, jeden Euro wert! **Developer response:** Thanks! ### 5/5 — Early days but promising *2026-05-12, version 2.20* I downloaded QZ recently after purchasing a Proform CSX that I wanted to connect to Zwift. It’s very intuitive (once you know what you’re looking for) and once I got it working it connected to Zwift easily. I emailed Roberto for some help and he responded within the hour - he was very communicative and helped solve my early teething problems. Very appreciated, and I would recommend this to anybody. ### 5/5 — Terrifically useful app *2026-04-29, version 2.20* This app allowed an Echelon bike, in a small apartment building gym, to be used with third party apps. A firmware change made this impossible, but the developer worked diligantly to find a solution. The app now allows the formally practically useless Echelon bike to become a “virtual” smart bike. I cannot praise enough the developers responsiveness to queries nor how customizable and how perfectly the app works. ### 5/5 — Great app and support *2026-04-27, version 2.20* I was unsure if the equipment was compatible and Roberto got to me very quickly and helped me confirm. ## Most critical reviews (10 lowest-rated) ### 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. ### 1/5 — Bait and switch *2026-05-01, version 2.20* Bought the app and installed it on my Nordictrack. Can only get 80% of the functionality to work. Contacted the developer on Facebook, did a bunch of debug and still can’t get it to work. Developer asked me to jump to another monthly subscription and still not working. Stay away from this guy. ### 1/5 — Not User Friendly , Waste or Money *2026-01-10, version 2.19* I got this app so I could connect my Echelon Treadmill to my Apple Watch so that the distance from my treadmill would sync with my workout. The app connected to the treadmill but never received any data for it. It’s nice it’s not an expensive app but it sucks that you can’t test it out before you buy it. The UI is also awful and getting support is extremely difficult. ### 1/5 — Do not use with Kickr V4 *2025-12-05, version 2.19* Unless you really know what you’re doing, DO NOT BUY THIS APP. It has totally messed up the gearing on my kickr v4. I look and feel like a kid on a trike on Zwift rides. I have tried several different solutions. Also when trying to re-calibrate my kickr it continually ends prematurely. I finally contacted Wahoo support who have provided a back door solution to re-calibrate. I’m not saying QZ does not do what it says on the tin. But its instructions and guidance is woefully bad if you are not terribly bike/riding technical. There should be a warning for unwary users. ### 1/5 — Worked for a but but stopped recognizing the bike *2025-08-22, version 2.19* Doesnt recognize the bike anymore + menu is crazy complicated I wish this app had a free trial, i would not pay for it of i could have tried it before ### 1/5 — Not happy, it doesn’t work and can’t make it work *2025-06-09, version 2.17* Useless. It connects to my treadmill, but when I start it stops immediately. Apple refused to refund me ### 1/5 — Tried several times and all the tips I was given *2025-05-13, version 2.17* Tried so many times to get this to work with my Nordictrack treadmill and my cadence sensor for my sunny bike. Would never connect, have two devices one for QZ and one for the peloton app. Never worked, for of a headache than anything. ### 1/5 — Can’t virtual gear shift *2025-02-08, version 2.17* The only reason I bought this was to shift gears from my phone and it can’t do it. Apparently can’t on iOS. App is very confusing and hard to look at. I’d like my $4.99 back. ### 1/5 — Poor Quality *2025-01-13, version 2.17* This app was created by amateurs apparently. It doesn’t save your data from workouts and I searched everywhere online. Getting a refund. Very poorly made app. ### 1/5 — Zwift virtual gear shifting *2025-01-05, version 2.17* This app does not work with zwift virtual gears using Rouvy app, it says it does but it does not.. ## Most praised reviews (10 highest-rated) ### 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! ### 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. ### 5/5 — Super ! *2026-07-23* Tout fonctionne parfaitement avec MyWoosh et les Swift Click V2. J’ai contacté le développeur pour m’aider dans l’installation, il m’a répondu en moins de 2 minutes et a résolu mon problème. Juste parfait **Developer response:** Thanks! --- *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.*