# OBD Fusion — user reviews > 404 indexed App Store user reviews of OBD Fusion by OCTech, LLC, rated 4.70/5 from 19,263 ratings. - Source: https://appshunter.io/ios/app/obd-fusion/id650684932/reviews - App overview in markdown: https://appshunter.io/ios/app/obd-fusion/id650684932.md - Rating breakdown: 5★ 15,832 · 4★ 2,455 · 3★ 531 · 2★ 134 · 1★ 311 ## What do users think of OBD Fusion? Overall sentiment: positive **Pros** - 👍 Easy to use - 🚀 Customizable dashboards - 💡 Helpful for diagnostics and monitoring - 🔍 Detailed vehicle information - 📊 Useful performance data **Cons** - 🐛 Connectivity issues - 🔒 Limited vehicle support - 💰 Expensive for some features - 🔋 High battery consumption - 🤔 Confusing interface in some areas **Commonly reported bugs** - Randomly disconnects from vehicle - Fails to detect or read codes on some vehicles - Gauge values not updating properly in some cases - Dashboards reset without warning **Most requested features** - Add CarPlay support - Improve data logging and graphing capabilities - Expand vehicle compatibility, especially for non-US models - Allow saving and restoring dashboard configurations - Provide more detailed diagnostic information ## Newest reviews (12 of 404) ### 4/5 — Lots of info *2026-08-18, version 7.4.0* But not easy to set up screens ### 2/5 — Works well but… *2026-07-30, version 7.4.0* Once you get it to connect everything works fine, but sometimes getting it to connect to your phone is problematic. I do not know if it is a problem with the unit or just the app. Either way it is annoying. ### 2/5 — No Dashboard CarPlay integration *2026-06-24, version 7.3.0* The app haves a lot of configuration tools and great dashboards, however it is not worth the purchase as the Apple CarPlay integration is terrible. You cannot monitor the information setup in dashboards with Apple CarPlay and that makes this a 2 star purchase. If the app had dashboard display for CarPlay, it would be well worth the $10 purchase price. ### 3/5 — Couverture Toyota nord américaine ? *2026-05-30* J’ai acheté cette application pensant bénéficier des extra Toyota pour ma voiture, mais elle ne se trouve pas dans l’édition du véhicule, les Toyota comme la Yaris n’est qu’en version 1,5 litre, aucune auris… Sinon pour ceux qui bénéficient des fichiers correspondant à sa voiture, l’application est top. ### 3/5 — Some PIDS only *2026-05-27, version 7.2.0* Needed PIDS for trans fluid temp which worked well. Also working on my ac system. needed PIDS for AC mag clutch on/off. Am able to choose the ac mag clutch but the PID stays in the “off” position and never changes when the ac turns on and off. I could probably keep looking into more of the available data but I’m kinda bummed it didn’t work for everything I needed even after paying for the app and the Toyota Lexus packages. 2015 Lexus GX 460 ### 4/5 — Compatible OBD *2026-05-18, version 7.2.0* Hi. Can someone point me in right direction to a scanner that works with this app, mine isn’t connecting to the car ### 2/5 — Mazda Extended Support is terrible *2026-05-13, version 7.2.0* They don’t tell you what extended PIDs are supported until after you pay $15 for the license. I paid to get information to diagnose my AC issues on a 2019 3, and none of the relevant PIDs are even available through this app. No option for a refund. ### 3/5 — Not for VAG cars *2026-02-28, version 7.1.0* I bought this for an 18 plate Audi to measure the engine oil pressure and temp, gearbox oil temp and a few other things. In newer VAG cars they use a different protocol/code to measure parameters so you can’t do this. I have spent loads of hours and tried lots of different Parameter ID’s and been unsuccessful. So whilst this looks a handy tool and looks good, check the protocol of your car before purchasing. It’s pretty much useless for me. ### 5/5 — Wonderful app, one request *2026-02-14, version 7.1.0* I used this app to create a drive analysis script that runs through shortcuts, I currently have to auth through Dropbox and download files before I can use them in the script locally If there was a shortcut action to export the csv of the last data logs that would be amazing. Regardless this is an amazing app for what it does. ### 5/5 — Great App *2026-02-07, version 7.1.0* Works plug-and-play with my Bluetooth adapter for 3.0L Duramax. Custom PIDs pull slip RPM, EGT, trans temp, boost, oil pressure, plus emissions stuff like DEF level, DPF soot load, regen status—essential for towing. Community PID files and forums make setup easy. ### 2/5 — Würde ich nicht mehr kaufen *2026-02-06* Am Anfang war alles irgendwie ok , Verbindung super Anzeigen waren gut , dann habe ich mir ein Zusatz Packet gebucht , dann fing es an , wenn ich es über Ki habe auswerten lassen war da nichts mehr mit den Werten die Angezeigt wurden , Strecken waren nicht komplett, mittlerweile muss ich es auch immer manuell starten … eigentlich schade ### 4/5 — Bought and sensors got taken away. *2026-02-02, version 7.0.1* Edit: apparently it wasn’t removed from the app but I had to “restore” past settings to get it back. Original review- Bought app and after a year half of the sensors were taken away from the app. If you want to ever see your tranny temp again you have to pay $14.99 more! ## Most critical reviews (10 lowest-rated) ### 1/5 — Missing promised features *2026-08-25, version 7.4.0* The app looks nice but has some problems. First, the dev seems biased to other makes since only a few manufacturer PID’s are available with initial purchase. I can’t get a simple PID for oil pressure out of this app when I get it from free ones. I bought the add-on PID for my car’s make and it still doesn’t show up. That’s $20 I’ve spent so far! 😤🤬 ### 1/5 — Charged money for no reason *2026-07-22, version 7.4.0* Charged money for no reason ### 1/5 — Paid app but then you pay again in app *2026-06-30* Yeah first you pay it to download then buy enhanced pack if you want to see all the sensors. I mean I downloaded car scanner and it have more features as a free app. I can’t see my atf temperature in fusion but in car scanner I can. So I unlocked the lifetime option in car scanner rather paying this developer. Sorry I paid for half the features and this should be highlighted first not later. Not asking for refund, you can keep it. ### 1/5 — Not for iPhone *2026-06-06, version 7.3.0* Works great on android but very fussy on iPhone so it’s unusable to me. Wasted my $ ### 1/5 — False description *2026-05-30, version 7.3.0* Paid 10 dollars for this app as it said it would read abs codes. Get into the app and it has no option to read abs code for bmw. Baited in by a false app description and wasted 10 dollars! ### 1/5 — NOT the same as OBD Fusion *2026-04-21, version 7.2.0* They advertise wrongly that the “OBD Fusion” paid app “contains the same functionality” as this free OBDLink app. Far from it. Explain that there are significant differences where both apps may be required. You got my money for your MX+ hardware over this misleading point. But no high rating. ### 1/5 — Do not use *2026-04-11, version 7.1.0* Extremely slow can not get accurate information. Paid 15 dollars to unlock more pids for ford but will still only load half. Not worth it at all ### 1/5 — Bought and sensors got taken away. *2026-01-24, version 7.0.1* Bought app and after a year half of the sensors were taken away from the app. If you want to ever see your tranny temp again you have to pay $14.99 more! ### 1/5 — Charged 9.99 without consent *2025-12-31, version 7.0.1* I was charged 999 weekly after downloading this app do not recommend at all ### 1/5 — J’ai payé pour rien *2025-12-28* J’ai payé cet appli pour n voyant les commentaires. Cela n’a jamais réussi à se connecter à mon ODB. Je suis très déçue, et je souhaiterais un remboursement ## Most praised reviews (10 highest-rated) ### 5/5 — CarPlay Integration Sets It Apart *2026-08-27, version 7.4.0* OBD Fusion is an excellent ODB app plus it provides a way to view parameters on your vehicle’s CayPlay screen. This is a game changer for me. ### 5/5 — Great App *2026-07-12, version 7.3.0* I like to monitor vehicle sensors and this App delivers! ### 5/5 — 20FuZion *2026-06-25, version 7.3.0* New to the App, just a dashboard so far, but really looking forward to digging deeper. So much in there & for any future code diagnosis. Took a few tries to get it to talk to iOS, but managed. ### 5/5 — Really cool app for iPhone *2026-06-18, version 7.3.0* This is a really cool app for iPhone. It works well other apps charge you by the week or a ridiculous yearly price. This app was cheap one time fee and works great. ### 5/5 — Love it *2026-06-12, version 7.3.0* Use it each time I drive my LS swapped C10 ### 5/5 — One of the Best *2026-06-02, version 7.3.0* The only thing I wish it had was a more robust CarPlay interface. I wish I could see the same gauges in CarPlay that I can in the app. ### 5/5 — Still can’t believe how long they have supported this app. And it’s still my favorite. *2026-05-30, version 7.3.0* Ive got this and a BlueDriver and still like this better even tho the BlueDriver was $100. Have had this for a LOT of years it’s incredible how well they have kept it updated and efficient. 10 out of 10 ### 5/5 — Car Play Please *2026-04-23, version 7.2.0* Loving OBD Fusion highly recommend would be really cool if you can add gauges to the CarPlay setting as right now the only thing I could access through CarPlay is vehicle speed engine, RPM coolant, temperature trip information and DTC ### 5/5 — Great app! *2026-03-06, version 7.1.0* Love this app ### 5/5 — It works *2026-03-04, version 7.1.0* Back in 2019 I bought a bunch of obd2 apps to work with my elm327 dongle and this was the best one. Fast forward to 2025 and this is the only app that works with my new dongle. It’s identical to the obdlink software except it has more functionality. I drive a Toyota so I don’t need the extended drivers, but I assume that works too. I love it I only wish there was GUI support for CarPlay. Having dials on my dash would be the bees knees. Still though, 10/10 --- *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 2026-09-01.*