OBD JScan

I don't usually post review but this app deserves one. It allows you to change tire air pressure sensor and tire size/drive ratio settings to accommodate changes you've made to your vehicle. It also has tons of other options and modules that can be activated and deactivated through the app. If your not sure it will do what you need d/l it and browse the demo. It does require a OBD2 adapter, but they're inexpensive. 100% worth the price. A big thanks to the developers.

Excellent app. Worth the money for in app purchase, though you can still see a lot of information in free version. Do yourself a favor and buy one of the listed compatible dongles. I had two very cheapies and neither would allow full functionality (but did allow to connect and read codes). Impressive amount of modification options. Just a really great app if u are modding a Chrysler/Jeep/Dodge. There is a free demo mode that requires no dongle but let's you see what is available for your model.

What a difference an app makes! I drive a 2011 JKU with 35 inch tires and a 3.5" dealer installed lift. Always wondered if the computer onboard the Jeep was updated after the lift, which I found out is was not via this app. Using a GPS to determine the actual speed, I found it was 4MPH too fast. I then adjusted the actual speed to be correct using the app. It is AMAZING what the change did by simply correcting for the 4MPH caused by the tire size. It is abundantly obvious that the (auto) transmission shifts when it should now as compared to not shifting as it should before. The Jeep runs so much smoother and fuel economy has improved. All the other app features are great, but I am so thrilled for this easy and quick adjustment.

Update: 11/28/24 - after troubleshooting for a day or so, figured out what the problem was, seems as if it was on my end with phone. Thank you for your quick response here! Update: 11/26/24 After the app updated twice within a few days, not working like it did. For example tire size adjustment never finishes then I have to back out and keep getting a error the app closes. 2015 wrangler. Better than expected!!

Fantastic app, worth every penny. My Ram 1500 had air suspension issues. The dealer, and even a tire store could not figure out how to fix the leaning truck. Bought one of the approved dongles and this app as a last ditch effort. I recalibrated and leveled the truck myself in about 20 minutes, and it wasn't even that hard. Modified other little handy things like fog lights that stay on with the brights, replacing lightbulbs with LEDs with no flickering, and getting rid of the seatbelt dinging.

This is a great and useful app if you own a jeep I have changed my tire size, along with also being able to turn on high beam, low beam and fogs running all at the same time. Turning off the seat belt buzzer and the tpms sensors is awesome also. I just wish that the couple pages that have all the system abbreviations like abs, aac, and all the rest would tell you what they stand for. I feel like there is so much more I could do if I only knew what all those abbreviation stand for.

I was having problems connecting my BAFX adapter to my 2013 jeep JK via Bluetooth. Sent them a message on FB but the time zones didn't line up because they're in Europe and it's late over there. I was frustrated because I was able to get another app to work no problem and told them of my frustration. They walked me through it at 0130 AM their time. User error of course. This app, while a little confusing to find the adapter during start up, is far superior to the other app I used "OBD Mary.

Neat app, not usable for my Jeeps. I have two ZJs and a WJ. You guys have to make an option for the best GC ever (and the most popular run for jeep) 186k Grand Cherokees sold from 96-98. The interface won't be too complicated, as there were just enough electronics to make it comfy/more efficient... Without having to take a refresh course on new programming languages in order to change a tire. Thank you for working on the WJ part of the app. I can't find a scan tool with abs functions that work!

It is very nice to have an application work as advertised. From the very start it worked. Purchasing app was very easy and so was activating the license. Disconnect from any bluetooth devices and the obdII device will show up. No need to purchase a spendy device. I purchased a Veepeak unit for $11 and it worked first try to adjust settings for my 2016 Jeep Wrangler. Great product highly recommended.

This app is freaking awesome. I converted a factory halogen light JL Wrangler to all LEDs. Two trips to the dealer and they could not figure out how to code it correctly, even though I used all OEM parts. This application in conjunction with the cable and Bluetooth module they recommended on their website and I did what the dealer couldn't in about 10 minutes. All my friends with Wranglers are downloading the app and buying the same cable/BT setup as mine (under 60 bucks).

Most user friendly programmer - a little buggy I would easily give this app 5 stars if it weren't so buggy. Had problems communicating with ECM using recommended iCar module. Communication tests fail. I have to delete app and reinstall after each use, then re-pair module. A little frustrating, but when working this app is absolutely amazing!! Adding presets such as economy, power, etc. would put the icing on the cake. Thank you to the developer for their work on this!

I used this to enable my fog light switch. My jeep came with a fog light switch on the turn signal stalk, but it did not have fog lights installed. When I installed my own fog lights they did not work because the computer wasn't programmed to allow me to use them. This enabled them flawlessly! Only wish I had found it sooner/easier. I'll take anything over paying a dealer to enable such a basic functionality. Thank you so much!

This app just saved me a lot of money. I lost one of the fob keys to my Jeep and bought some inexpensive replacements online. The local locksmith wanted $95 per key to program them. For a $25 license fee, I can now program my own keys as well as get real time data like tire pressure. Worth the price.

Need a license to use; but license buying menu in app does not work. EDIT: Was able to buy a license by enabling Google Play Store on phone. Error message should have been written better. And do not like that Google Play Store has to be running to use this app.

Best app for jeep owners. pretty much like having a snapon scanner on your phone. able to do lots of customization to your jeep from changing which light is your dlr's all the way to diagnostic relearns and more.

If you have a Jeep/Dodge/Chrysler you need this app! Go get your Bluetooth OBD reader to diagnose and clear check engine lights, change out your abs unit and add vin, changed wheel size so your speedo is correct, add LED headlights, adjust your DRL to fog or parking or head lights and so much more!

used this app and a bypass cable to properly set tire size on my jeep gladiator, disabled start/stop, and tire pressure lower limit. much cheaper than a Tazer and it did eveything I needed it to.

Worked on my JKU and was able to check faults and replace keys. I bought a 2010 Ram and figured it would work the same. it does not, won't read the pin for the keys and functionality is more limited. Tried to get a refund for the truck license, but google says no. Can't test the premium features without a license and if the features don't work you're just out the money.

The JScan app is absolutely essential honestly, it's nothing short of a godsend for any Jeep owner. This app will save you thousands of dollars in dealership diagnostic fees and unnecessary mechanic visits, giving you unparalleled peace of mind throughout your entire ownership experience. The ability to diagnose issues yourself, read detailed fault codes, and understand exactly what's happening with your vehicle is incredibly empowering. I just wish the yearly subscription to be once off!

One example of a well written smartphone application,backed up by well documentation for almost any kind of problem one might face plus blazing fast responses from their support team via messenger. Could not be any happier!