# Brain / iKon / Xbar / TracX — user reviews > 53 indexed App Store user reviews of Brain / iKon / Xbar / TracX by MSH Electronics Srl, rated 2.50/5 from 31 ratings. - Source: https://appshunter.io/ios/app/brain-ikon-xbar-tracx/id968499281/reviews - App overview in markdown: https://appshunter.io/ios/app/brain-ikon-xbar-tracx/id968499281.md - Rating breakdown: 5★ 9 · 4★ 2 · 3★ 0 · 2★ 3 · 1★ 17 ## Newest reviews (14 of 53) ### 2/5 — Nur bedingt brauchbar… *2022-09-27, version 3.4.059* Inbetriebnahme des Brain, per App, war nicht möglich. Grund dafür, die Firmware musste aktualisiert werden, was über die App aber nicht funktionierte. Ansonsten, kein vernünftiges Arbeiten möglich, da die Software ständig abstürzt. Dafür Geld zu verlangen ist eine Frechheit! Bin sehr enttäuscht… ### 4/5 — Love it *2021-07-08* It crashes sometimes but I was able to program my whole Trex 700n dfc with it . Brain 2 BT . I’m sad to see all the bad reviews on this app but it has been updated frequently. ### 3/5 — Ganz ok, aber alles kostet *2021-06-09, version 3.3.039* Find die App halt praktisch, da ich zum einstellen dann keinen Laptopt mitschleppen muss. Aber mal ehrlich - man kauft sich das Brain + Bluetooth Modul und muss für die App trotzdem noch mal 10,99€ bezahlen? Und die Diagnosefunktion kostet auch noch mal 5,49€ extra? Und dann bekomme ich nicht mal eine fürs iPhone X (!) vernünftig angepasste Version, wo die Buttons an unmöglichen Stellen sitzen? Das finde ich einfach schade. Das Brain ansich ist nämlich super. ### 2/5 — Keine Schrift vorhanden *2021-02-05, version 3.3.039* Auf dem IPhone 12 Mini leider keine Schrift sichtbar, nur die Symbole. ### 1/5 — Keeps crashing. Need a refund! *2020-12-10* Need a refund. This app is useless. I cannot go more than 30 sec without crashing!!! ### 1/5 — Crashes every time you leave app *2020-11-18* Crashes frequently and does not support running in background. Usually if app crashes you have to manually disconnect Bluetooth and reconnect or you get an array error. **Developer response:** The application must be closed before flying by swiping from the task manager. For this reason if the smartphone is put in your pocket with the application left active and you go flying, the bluetooth communication with the unit is deliberately interrupted for safety reasons. ### 2/5 — Crashes constantly *2020-11-17* It crashes everytime I try to use it fix this ### 1/5 — Crashes *2020-09-22* Crashes on gov page when trying to view rpm reading. Throws g/sync lost... then index out of range error. Wish they’d fix this. As a software dev myself, I’d expect this should be a trivial fix. Too bad as the fbl unit otherwise is great. A bit dangerous though trying to set max / min throttle in the gov when a 500 sized heli is plugged into the computer via usb, so I was hoping that I could set that via Bluetooth. ### 1/5 — Does not work *2020-09-20* I’ve had this app for a while and it just doesn’t work. Most of the time it will not connect with the fbl and when it does it’s painfully slow and crashes. I love the fbl units but the app is complete trash. ### 1/5 — App Not Right *2020-09-04* The app crashes constantly and it’s difficult to maneuver thru the interface since buttons are at the outer edges of the screen. Then the app gives an error message and kicks me out of the app, it’s very cyclical. ### 1/5 — iPhone 11pro *2020-07-03, version 3.3.019* Does not work with iPhone11 pro max. I want my money back!! £9.99!! Keeps crashing. ### 1/5 — How are you going to charge for an app that doesn’t work?! *2020-04-04, version 3.3.006* I have a Mac computer which you don’t have software for, so I buy the more expensive BT module so that I can use my iPhone since that I’d supposedly supported.... then I go to download the app, and to my surprise it’s 9.99. Not only did I just spend more money to have the Bluetooth version but now I need to pay 9.99 too. I bite the bullet and tell myself it’s a small price to pay. BUT THEN it doesn’t even work!!!!!!! I bought 2 BT FBL systems from you and I can’t even use them. My options are now to buy a windows computer, change to android and hope that app is any better, or sell my FBLs and change to a different brand..... ### 1/5 — Crashes all the time *2020-03-28* There’s an index out of array range message that keeps coming up. Anyone with software experience knows exactly that this is a index pointer issue and is easy to fix. To still have this issue indicates a lack of desire to fix the app. ### 1/5 — Doesn’t work *2020-03-25, version 3.3.006* App keeps crashing, showing connection. Running on my new iPhone 11 Pro and iPad. Useless. ## Most critical reviews (10 lowest-rated) ### 1/5 — Stürzt ständig ab *2023-03-16, version 3.4.103* Stürzt alle paar Minuten/Sekunden wegen Kommunikationsfehler ab. Fällt euch das gar nicht auf? ### 1/5 — Needs Work! *2022-11-19* So you spend the extra hard earned $$$ to buy Bluetooth functionality, download the App, and when you go to use it, it just doesn’t work. Very very frustrating. I was able to connect to the device, but get dropped within 1 min. Please fix the Alert (G/cannot communicate with unit) and the dropouts. People expect for these expensive toys to work!! BTW, both Brain2HD and iKon2HD behave the same. They have the same issues, so if you think buying an iKon will yield better results, been there done that!! I guess for now it’s back to using a PC only!! Hopefully these defects get fixed since we did pay for them! ### 1/5 — Never works *2022-06-14* I have it on a Goblin 380 and it’s pretty much useless. I always have to go to computer to get it to make changes. NTSB dream come true ### 1/5 — Gut gedacht, funktioniert aber leider nur sehr schlecht… *2022-06-12, version 3.4.059* Abstürze und Freezes ohne Ende, egal ob auf dem iPhone oder iPad, das neueste Betriebssystem ist auch immer installiert… und das bei diesem Preis. Eine Lösung für das Problem wäre wünschenswert. ### 1/5 — Complete waste of money! *2022-05-26* I had high hopes for this, having bought the Bluetooth module for the Brain unit. But his app is complete garbage! It locks up and crashes every time I try to use it. I want my money back for the app, but I guess I won’t get it. And the money for the Bluetooth was a waste too. ### 1/5 — Freezes, crashes. Useless *2022-02-16, version 3.4.012* Are these people still trading? not a good idea to buy their products if they are unable to support us. Nobody gives a toss anymore, just take the money and run. Shame because it looked like it had potential. Brain Hd ### 1/5 — Why is this app so bad!? *2022-02-03* I have a brand new IPhone 13 pro and this app freezes, shuts down and will randomly close for no reason. After a half hour trying to use it, I went to the site to get the computer version. Guess what… it’s only for windows! No mac version and it’s 2022!? I had to install boot camp on my Mac to use 1 app, annoying. Dear developers of this app, fix the problems or stop charging $10 for something that works 50% of the time. ### 1/5 — Crashes a lot *2021-11-14, version 3.4.012* Crashes *constantly* and is very slow. Almost impossible to use. Android version didn’t have this problem. Please fix the major bugs and I will update my review! ### 1/5 — Not good *2021-08-10* Crashes constantly, even in demo mode. App like this should not even be in the apple app store, Doesn’t apple test apps before they go in the app store. ### 1/5 — Crash Crash Crash *2021-02-28* This is the absolute worst app yet to date on my phone. I can’t remember what exactly I paid but if I remember, it was around $8. Do not buy this junk that does not work. An old Pentium 100 moves faster than this app and the Pentium 100 didn’t crash often. Absolutely ridiculous to the point where I understand why everyone flys VBar. Time to make the switch. What a disappointment to the hobby. Huge big thumbs down to the developers at MSH. 👎🏻 ## Most praised reviews (10 highest-rated) ### 5/5 — Works great! *2021-09-30, version 3.4.012* I installed this app on my iPhone 6s Plus running the current iOS. I’m not experiencing any of the problems that other people are having. I actually think the iOS app works better then the PC version. Great job guys! I also bought the diagnostic app as well! BTW if you’re having a problem getting the app to pair with your iPhone go into settings and let Bluetooth find it. It will ask for a pin. Type 0000 (4 zeroes) and it will pair! ### 5/5 — Achtung! Dark Mode nicht aktivieren. *2021-05-14, version 3.3.039* Funktioniert bestens, solange der Dark Mode nicht aktiv ist. Bei aktiviertem dark Mode fehlt die Beschriftung der Parameter. ### 5/5 — Works as it should be *2021-03-08* Got the app this weekend and used it for first time... new to Ikon brand. App works just need to follow instructions and once you are done reboot heli. ### 5/5 — Works as expected *2021-01-13, version 3.3.039* Very useful when setting up the IKON on my heli. I can now change settings with the heli on my kitchen table or at the flying field. Note that you need to connect to the FBL Controller first in the smartphone’s Bluetooth control panel before launching the app. ### 5/5 — Très bonne appli *2020-07-08, version 3.3.027* Très bon module et l’appli simplifie bien les réglages sur le terrain. Et un bon suivi en prime. ### 5/5 — Flawless *2019-12-27* The app works great. Can’t beat it for making changes at the field or doing firmware updates at home. ### 5/5 — Works great *2018-05-20* Very handy app for those adjustments in the field. -J ### 5/5 — MSH Brain App *2018-04-21, version 3.1.027* MSH Brain App works great!!!! ### 5/5 — Works well. *2017-06-23* The app works well. When I first used it it would constantly crash, but with the current version it have been very nice to have. ### 5/5 — Marche très bien *2017-06-11, version 3.0.022* L'application marche très bien, l'interface est claire et ergonomique. Il manque quelques explications par rapport à la version Androïd et Windows mais rien qui ne nuit aux réglages du Brain V2 via cette appli. Bons vols --- *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 2026-08-27.*