Reviews of OBD Fusion (Car Diagnostics)

By: OCTech, LLC App

List of user reviews and ratings for OBD Fusion (Car Diagnostics)

Total ratings

4.57 (Rating count: 3,158)

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Review summary

OBD Fusion is praised for a strong, professional feature set and Android Auto support, and for not requiring a subscription. However, multiple reviews highlight reliability issues (disconnections, zero readings) and Android Auto connection problems. The pay model for enhanced PIDs and annual licenses, plus refund difficulties, is a frequent gripe. Some users also report missing PIDs or dashboards for certain vehicles. Overall, it’s a powerful tool when it stays connected, but reliability and pricing are the main concerns.

Pros

Powerful, professional-grade feature set with many enhanced PIDs and modular add-ons.
Android Auto compatibility lets PIDs be displayed on the car screen while driving.
Not subscription-based, avoiding ongoing recurring fees.
Ease of use and ability to customize the UI and dashboards.

Cons

Unreliable connectivity: frequent disconnects and readings showing as 0s when it should be live.
Android Auto may not auto-connect and sometimes requires manual reconnection when starting the car.
Paywall/fees for enhanced features and yearly licenses; refunds can be difficult or slow.
Incomplete PID coverage and dashboards for some vehicles (missing critical PIDs, dashboards, or modules for certain makes/models).

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User Reviews

Recent rating average: 2.90

All time rating average: 4.57

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21% (20)

Date	Author	Comment
2026-07-19	Ge*****	Works great for my GMC 3500 diesel to monitor regen status, however there graphics issues with the data populating the gauge on the dpf-regen status gauge.
Works great for my GMC 3500 diesel to monitor regen status, however there graphics issues with the data populating the gauge on the dpf-regen status gauge.
2026-07-14	Ch*****	enjoy the standard functions. bought an add on pack, used it and now it wants me to buy it again 2 weeks later. restore purchases didn't help.
enjoy the standard functions. bought an add on pack, used it and now it wants me to buy it again 2 weeks later. restore purchases didn't help.
2026-07-13	Ge*****	good for vehicles
good for vehicles
2026-07-12	Ro*****	i purchased the app and the toyota package. Next day stopped working! google doesn't want to refund!!!
i purchased the app and the toyota package. Next day stopped working! google doesn't want to refund!!!
2026-07-03	Ry*****	This was advertised as having addition GM features for purchase. There are no modules for GM.
This was advertised as having addition GM features for purchase. There are no modules for GM.
2026-06-18	Wi*****	waste of money will not connect to 2020 ford fusion can not find a usable ISO
waste of money will not connect to 2020 ford fusion can not find a usable ISO
2026-05-30	An*****	Best obd2 app i have used so far!
Best obd2 app i have used so far!
2026-05-29	Ma*****	having issues loading my add ons that I already purchased. only pidd under manufacturer are Gm. I already purchased before. can you assist me?
having issues loading my add ons that I already purchased. only pidd under manufacturer are Gm. I already purchased before. can you assist me?
2026-05-18	sa*****	keeps disconnecting from Bluetooth OBD2 dongle, have used this app for many years but now all the sudden it keeps disconnecting from the dongle. they don't go works with other OBD2 apps but for some reason it quit working with this one. it will connect I'll start to try to read codes and then it disconnects every time. makes it unusable.
keeps disconnecting from Bluetooth OBD2 dongle, have used this app for many years but now all the sudden it keeps disconnecting from the dongle. they don't go works with other OBD2 apps but for some reason it quit working with this one. it will connect I'll start to try to read codes and then it disconnects every time. makes it unusable.
2026-05-16	St*****	⭐⭐⭐⭐ (4/5) OBD Fusion is an excellent technical diagnostic app for monitoring my 2008 Toyota Prius, paired via a Veepeak OBDCheck BLE. It can be finicky to connect if booted in the wrong sequence. It has a steep learning curve and a complex interface. Tracking hybrid data points like block voltages or inverter temps requires a paid "Enhanced Diagnostics" add-on. Still, as a scientist, I find the unlocked tracking resolution and logging granularity to be an excellent analytical value!
⭐⭐⭐⭐ (4/5) OBD Fusion is an excellent technical diagnostic app for monitoring my 2008 Toyota Prius, paired via a Veepeak OBDCheck BLE. It can be finicky to connect if booted in the wrong sequence. It has a steep learning curve and a complex interface. Tracking hybrid data points like block voltages or inverter temps requires a paid "Enhanced Diagnostics" add-on. Still, as a scientist, I find the unlocked tracking resolution and logging granularity to be an excellent analytical value!