# OnTrack - OBD2 Scanner — user reviews > 51 indexed App Store user reviews of OnTrack by OnTrack Apps Limited, rated 3.30/5 from 54 ratings. - Source: https://appshunter.io/ios/app/ontrack-obd2-scanner/id6446315145/reviews - App overview in markdown: https://appshunter.io/ios/app/ontrack-obd2-scanner/id6446315145.md - Rating breakdown: 5★ 24 · 4★ 7 · 3★ 2 · 2★ 2 · 1★ 19 ## What do users think of OnTrack? Overall sentiment: mixed **Pros** - 👍 Great CarPlay integration - 💡 Useful for monitoring temps and info - 🚀 Fast refresh rate - 👍 Easy to read info at a glance - 👍 Highly customizable - 👍 Responsive developers (historically) - 👍 Works with the right dongle - 👍 Good for track use monitoring - 👍 Best CarPlay app for OBD - 👍 Good idea with potential - 👍 Works well transmitting data - 👍 Best OBD2 Scanner for CarPlay - 👍 Top notch functionality - 👍 Simple and informative use **Cons** - 🐛 Connection issues with various dongles - 🐛 Lack of support/unresponsive developers - 🐛 App crashes - 🐛 Limited PIDs available - 🐛 Boost pressure limit - 🐛 Unpaid version limitations - 🐛 No WiFi version - 🐛 Landscape mode not supported - 🐛 Subscription required for full features - 🐛 Not EV compatible - 🐛 Inconsistent stability - 🐛 Monthly subscription cost - 🐛 Compatibility issues with Bluetooth 5.0 - 🐛 Gauges not displayed, only numbers - 🐛 Inaccurate readings - 🐛 Expensive subscription - 🐛 Wrong engine codes given **Commonly reported bugs** - Lost connections with Vgate Pro - App crashes as soon as it connects to OBD2 reader since iOS 18 - Öltemperatur (Oil temperature) not read for VW/Audi vehicles - Boost bar maxes at 1.5 bar / 22.3psi - Not connecting to OBDLink CX - Not connecting to OBDLink CX or BlueDriver - App crashes when trying to connect Bluetooth device - App crashes when sorting fields in dashboard - Certain values cannot be retrieved from OBD interface - No readings, inaccurate oil and coolant temperatures - App not appearing in CarPlay customization menu - Connection problems with OBDLink MX+ - No data displayed for 2015 VW T5.1 after purchasing premium - App barely works, tried 3 OBD modules, worked with one once - Check engine light codes are incorrect (P1700 vs P0117) - Will not connect with OBDLink MX+ or Vgate Icar Pro - Does not work with Bluetooth 5.0 - WiFi Version needed - Can’t tell if it works, unpaid version allows only two sensors **Most requested features** - Add gauges instead of numbers for CarPlay - Add more PIDs (e.g., exhaust gas temperature, transmission temp) - Vehicle selector - Support landscape mode - Add custom PIDs for vehicle-specific measurements - Add light mode - Add smaller format windows for CarPlay - Add EV specific measurements (battery temp, state of charge, etc.) - Add transmission temperature display - Add oil temperature display for VW/Audi - Allow single purchase for limited values ## Newest reviews (12 of 51) ### 3/5 — Great potential, no support *2026-03-16* I really believed in the potential of this app. I was testing it and emailed support. Lee answered once and was very helpful but then I couldn’t get him to respond to the next three attempts to reach them. I’m left to believe the app is no longer supported. ### 3/5 — Öltemperatur VW, AUDI, … geht leider immer noch nicht *2025-07-25* Eigentlich eine tolle App. Läuft bei mir stabil und die Meldungen beim überschreiten von selbst definierten Grenzwerten sind auch eine echt tolle Idee - der interessanteste Wert für mich ist die Öltemperatur. Der wird bei Fahrzeugen des VW Konzerns aber leider nicht ausgelesen. ### 4/5 — Carplay Support *2025-02-03, version 1.3.6* The application is handy, and I use it almost daily on my 2023 Subaru WRX, but I wish you could add gauges instead of numbers. It will be more appealing and useful, specifically with the Car portrait screen. I guess we have the right to ask since we are paying monthly fees ### 4/5 — Boost only measures to 22.3psi *2024-10-09, version 1.2.13* Love the fact this works through apple carplay - just a real shame the boost pressure only goes up to 22.3psi ### 2/5 — Can’t tell if it works *2024-08-29, version 1.2.10* The unpaid version only allows two sensors. ### 3/5 — Good but could use improvements *2024-07-16, version 1.2.10* Boost bar maxes at 1.5 bar. My car runs 3bar and this didn’t go up to 3bar. Should also be able to change layout and also support landscape mode. Other than that it’s good! ### 3/5 — More PIDs please *2024-07-03, version 1.2.10* So far it seems very promising but just missing some PIDs. I have paid the subscription but it doesn’t really feel like you get much extra. Are you able to add a vehicle selector? Or at least add exhaust gas temperature and transmission temp would be great. Lots of people in Australia with diesel 4x4 will jump on this if those mentioned above were available. Anyway gonna hang around while this gets developed and hopefully more PIDs get added then this will be a powerful tool. ### 2/5 — A90 Supra *2024-06-10, version 1.2.9* I have not been able to connect since I loaded this app🥲 ### 2/5 — Doesn’t work with Bluetooth 5.0 *2024-05-22, version 1.2.9* Hi there , I bought a Bluetooth 5.0 OBD2 scanner for faster data transmission and less power consumption , but it won’t connect with your app. Will you support Bluetooth 5.0 in the near future ? ### 4/5 — Almost Awesome *2024-05-15, version 1.2.9* It works, but I wish it supported more PIDs. Don’t get me wrong this app shows readings on my car screen with some of the desired readings. I would love to see the Air/Fuel Ratio supported if it did I’d give it a 5. ### 3/5 — No Transmission Temperature *2024-04-11, version 1.2.5* No options for showing transmission temperature which is all I want to use it for ### 3/5 — Abo 👎 *2024-03-27* Ich brauche die App nur um Wasser- und Öltemperatur zu beobachten und muss/kann/soll dafür ein Abo für 35€ im Jahr abschließen. Ein Einmalkauf mit bis zu 3 oder meinetwegen auch 5 Werten gleichzeitig wäre meiner Meinung nach deutlich besser. Ich brauche die ganzen DTC Codes etc. nicht und möchte deshalb auch nicht dafür bezahlen. ## Most critical reviews (10 lowest-rated) ### 1/5 — Meh *2026-06-01, version 1.3.22* Lost connections with Vgate Pro constantly slow connection times. ### 1/5 — No support *2026-05-12, version 1.3.22* I was getting app support from Lee in the fall of 2025 and then he suddenly stopped responding to emails. I can only assume the app is no longer active. This is unfortunate as the app really seemed to be promising. ### 1/5 — Does not work obdlink cx *2025-12-01, version 1.3.17* Not sure why it won’t connect to obdlink cx. ### 1/5 — App crashes *2025-04-23, version 1.3.9* The app used be perfect. It was my go to OBD2 scanner and was always on my CarPlay. However, since IOS 18, the app crashes as soon as it connects to my OBD2 reader, rendering useless. This happens with or without a subscription. ### 1/5 — Display gauges *2025-01-04, version 1.3.3* Need to have a better display on carplay ### 1/5 — WiFi *2024-07-26* I need WiFi Version ### 1/5 — mega schlecht ! *2024-05-09* Eine Verbindung mit einem OBD II scan tool 4.0 bluetooth für ios baut keine Verbindung auf ! Support antwortet auf mehrfache Anfrage nicht ! ### 1/5 — No readings , not accurate *2024-04-25, version 1.2.8* I can’s new torque readings at all, oil and coolant temperatures doesn’t match what I see on car’s dash, emailed developer, no response. ### 1/5 — Doesnt work *2024-03-27* Everytime i try to connect any Bluetooth device, the App crashes. **Developer response:** Hey sorry to hear you are having problems, it's very hard for us to help in the App Review section here, please reach out to us on email and we can see how we can help. Regards, OnTrack ### 1/5 — Doesn’t work *2024-02-21, version 1.2.3* I’m convinced this app is a dud or something. I have tried on and off again since release and not once will it connect to any adapter, even an OBDLink MX+. It’s crazy ## Most praised reviews (10 highest-rated) ### 5/5 — Once you OnTrack, you never go back! *2025-09-23, version 1.3.14* Downloaded this over a year ago and have used it for more or less every drive since! Whether that be a road trip or a B road bash! So handy to keep an eye on temps and other valuable info which would usually be a pain to find! It’s all just there on your CarPlay screen! It’s a dream! Super easy to read important info at a glance and customisable to your hearts content! Couldn’t go without it now! Cheers Lee and all devs for listening to the users and implementing improvements almost instantly! ### 5/5 — Great for keeping an eye on things *2025-09-20, version 1.3.14* Always keep this on my screen to keep and eye on certain things like temps and voltage. The team behind the app are brilliant, always on hand to answer any questions, take feedback well and try to implement your thought into the app to make it a much better experience to use. I can’t go without it now! ### 5/5 — Great app with a super fast refresh rate *2025-09-20, version 1.3.14* Couldn’t be happier. Does exactly what I need it to do. ### 5/5 — Now works with OBDLink *2024-10-30, version 1.2.13* This app is great. CarPlay compatible and now my high end obd adapter works. Very happy with app ### 5/5 — It does work with the right dongle *2024-05-04, version 1.2.8* Two dongles later and it worked. Use Vgate iCar Pro Bluetooth 4.0 (BLE) OBD2 Fault Code Reader OBDII Code Scanner and it connected and shows info ### 5/5 — OBD gauges for BMW iDrive *2024-04-24, version 1.2.8* I use this app for gauges that monitor intake temp, coolant temp, and oil temp on the factory iDrive display while on track. I’ve been looking for a solution to get gauges on the factory iDrive screen and this does exactly that via CarPlay in my 2017 BMW running iDrive 5. App works as needed and as advertised. Devs are great and responsive to feedback. 5/5 would recommend. ### 5/5 — Best car play app *2024-04-16, version 1.2.6* This app is great and so is Lee. Throwing suggestions at him and having them show up on the app a week later is amazing customer service. Recommend this to all my friends and they’re loving it ### 5/5 — This app is a first. *2024-02-19* Yet to find another CarPlay compatible obd based dash. There’s still a few bugs on my end but the overall use of this is simple, informative and problem free. Couple of readings coming in Celsius even tho my settings are set to Fahrenheit. I’m using the recommend vgate icar pro with no issues. Needed to use a separate app to initiate the obd connection for the first time but the process is automatic now. Great app. ### 5/5 — carplay *2023-10-11, version 1.0.9* good app nice to be able to display on car play saving phone being mounted on the dash ### 5/5 — Best OBD2 Scanner! *2023-07-23, version 1.0.5* Great app for seeing them all important engine details, and works with Car play! Will continue to use. --- *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 2026-09-11.*