# JetBlack Trainer — user reviews > 18 indexed App Store user reviews of JetBlack Trainer by JetBlack Products Pty Ltd, rated 2.60/5 from 5 ratings. - Source: https://appshunter.io/ios/app/jetblack-trainer/id1595969097/reviews - App overview in markdown: https://appshunter.io/ios/app/jetblack-trainer/id1595969097.md - Rating breakdown: 5★ 1 · 4★ 0 · 3★ 2 · 2★ 0 · 1★ 2 ## Newest reviews (4 of 18) ### 1/5 — Does not work *2023-03-10* Doesn’t connect. Can only use trainer on Zwift ### 1/5 — Kalibrierung nicht möglich *2023-01-13, version 1.1* Mit der Hersteller App ist keine Kalibrierung möglich,obwohl dort vorgesehen ! ### 1/5 — Trainer great, app is absolute garbage. *2022-11-16, version 1.1* App constantly crashes when I try and upload workouts to Strava and randomly deletes previous workouts. User interface looks brutal and I could probably list hundreds of other bugs I have ran into. I train around 200km a week and extremely disappointed in this app. JetBlack, PLEASE allocate some resources to development of this app. ### 1/5 — Only necessary for updating *2022-03-08, version 1.1* No preconfigured Workouts No chance to set up own workouts How can I import workouts? ## Most critical reviews (10 lowest-rated) ### 1/5 — Völlig unbrauchbar *2026-02-01, version 1.30.64* Es gibt nur 2 Modi, „ERG“ und „Resistance“. Man kann aber keine Workouts erstellen. Was noch ärgerlicher ist: die App stürzt ständig ab und die Aufzeichnung wird beendet -Ursache nicht feststellbar. Unterm Strich ist die App also total unbrauchbar. Ich verwende ein Iphone 11, IOS 26.2.1. . Ich will kein Zwift o.ä. abonnieren, dazu nutze ich den Volt zu unregelmäßig. Aber eigentlich bleibt mir gar nichts anderes übrig. Bin total enttäuscht. ### 1/5 — Can’t connect *2025-12-01, version 1.30.64* This app never seems to come off searching for any signal. My phone connects to other things and I have two trainers here that both connect to a laptop quickly and easily, but when disconnecting from the laptop and trying to connect to the app, they just keep blinking blue, saying they’re searching for a connection too. Same with heart rate or other power meters. It’s the app that’s off. This is pretty awful. ### 1/5 — Very poor support *2025-06-29, version 1.30.64* Does not support any of their older trainers. I purchased a cadence and speed sensor brand new and one month later they bought out this app which had no support for my sensor. Was told by Jet Black that they had no plans to support older products. The sensor was and is still commercially available. Obvious strategy to encourage people to purchase their new trainer. Will never buy another Jet Black product. ### 1/5 — Doesn’t work *2025-03-29, version 1.4.4* I received a notice that I needed a firmware update but the app won’t let me log in. Tried to set up a new password and still didn’t le me login. Deleted the app, reinstalled, still gives me a notice that login failed. Basically the app is useless. ### 1/5 — Where are all the features? *2025-03-17, version 1.4.4* The website says this app has a lot of features that just don’t appear to be in this app. The screenshots all look completely different and I can’t find the 20 trainer sessions this app claims to have. Very disappointed. This app just appears to be setup for the trainer, nothing more. ### 1/5 — App not connecting to trainer *2025-03-06, version 1.4.4* Being trying to connect for some time now. ### 1/5 — App isn’t talking to trainer *2025-01-27, version 1.4.4* Resistance doesn’t change. App doesn’t record distance or anything but my Garmin does so I don’t think it is the trainer that’s the problem. No workouts on the app. Just useless on all levels ### 1/5 — App needs major upgrade. *2024-12-25, version 1.4.3* App needs more training features than resistance and erg mode which one has to manually set. Let us create a custom workout at least. ### 1/5 — Wifi stability issues *2024-11-23, version 1.4.3* JetBlack Victory cannot hold wifi connection ### 1/5 — Crashes *2023-09-11, version 1.2* Everytime I go to do a “workout” it counts 3…2…1 then crashes. It like it teases me on purpose.. then when I connect to zwift it doesn’t get any harder on different terrain I’m just cruising on the highest gear. When you spend this much on a trainer you want it to work.. avoid at all costs get a zwift trainer save yourself the trouble ## Most praised reviews (4 highest-rated) ### 5/5 — App and Trainer both awesome *2026-03-24, version 1.43.104* I think the app and the trainer both get a bad rap. Mine have both worked flawlessly for some time. Out of the box the trainer had some connectivity issues with Wi-Fi, but a firmware updated fixed those for me and its been smooth sailing. Really happy with JetBlack. ### 5/5 — Reliable and reasonable support *2023-11-10, version 1.2* I have been using the JetBlack VOLT for over 18 months and it has been very reliable. I have also found that Support is quick and very helpful. ### 3/5 — Needs to work with smaller screens *2025-02-05, version 1.4.4* I understand my iPhone SE is old. I keep it as an extra device and it would be great to keep on the bike for use cases such as this app. The app isn’t usable however, due to the select workout button being off screen. I think fixing that issue would not be a major undertaking, but if it is then the hardware requirement should be changed. ### 2/5 — Abandoned? *2022-11-29, version 1.1* So many promises of updates and improvements which never came to fruition. A shame as it’s a great trainer --- *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 2026-07-05.*