- 69.7LEGITIMACY SCORE
- 73.2SAFETY SCORE
- 17+CONTENT RATING
- $27.99PRICE
JB4 Mobile App Complaints & User Negative Comments 2024
JB4 Mobile app received 23 complaints, negative comments and reviews by users. Have you ever had a bad experience using JB4 Mobile? Can you share your negative thoughts about jb4 mobile?
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JB4 Mobile for Negative User Reviews
✓ Keeping the app updatedThe overall experience of the app is good however I’m surprised to why the developers do not release the capability for apple CarPlay.Version: 2.5.5
✓ Using this app & Bluetooth wireless connectorWhile using this app & Bluetooth connecting, having issues some errors of sings, ignition problems, freezes up, or can’t read the gauges properly. I would not recommend JB4 tuning. Low quality product.Version: 2.5.1
✓ Used to workUsed to work but no longer connects to my car. Which means it’s pretty useless 🤦♂️.Version: 2.5.6
✓ What is up with everything going mirrored image?What is up with everything going mirrored image? And then freezing like that until you delete the app and reinstall it?.Version: 2.5.7
✓ Doesn’t workI install it with the wireless app with iPhone 11. Worked few months and I tried to change map for valet and since, the app doesn’t work. I tried to update and it’s even worse. The car don’t want to go faster than 20 miles/hr. And check engine is on. I’ve tried every things on n54tech. I delete the app and the firmware cannot download. I don’t recommend. I cannot connect the wire the car don’t go. I bought it for notting. Its big waste of time and money. A good mecanic order it and installed it. And when he order the wireless kit, they sent the bad kit for my car and had to complain seriously to get the good kit. Never again for me..Version: 2.4.6
✓ Most of the timeI’ve been an advocate for the company for many years. Great products. The only issue with the app sometimes the gauges will freeze whether on Bluetooth or OTG connection. I mean it does work most of the time. As intended..Version: 2.5.7
✓ Product Improvement RequestHave only been using for a few rips so far and don’t have any major complaints, but immediately as I’m driving I notice a few things that in my mind should be in this app already and can’t be that hard to build out… 1. Name my custom maps 2. Let me see one or a few gauges at a time (screen layout) 3. Apple CarPlay!.Version: 2.5.7
✓ Does not work well.App constantly cannot see devices, gauges constantly stop working randomly. Since last update cannot connect to tuner no matter how much troubleshooting. For how much this device cost and then to have to pay extra money for the app and then it hardly works (1 year or use…) I’ll be selling this crap tuner. 2019 Raptor..Version: 2.5.6
✓ CrashingAfter the recent update I am having crashing issues when customizing my gauges. Please fix! 🙏🏽.Version: 2.5
✓ It’s very expensive app / no partial refund for one month use.Make sure you are dead set on keeping your JB4 kit since this app is none refundable once you buy it. You won’t be able to transfer it to another user like your friend also. So If you decided to sell your new JB4 tuner kit, count this app cost as your extra loss..Version: 2.3
✓ Worst customer serviceWon’t call, only email. Takes a whole day to get one line replies. Going on day three and still can’t tell me why I’m having engine lights and issues with app..Version: 2.4.0
✓ Good when workingInstalled for two days now the Bluetooth connection no longer works at all..Version: 2.5.6
✓ Could be so much better.Very buggy. The email only support is very frustrating. I also highly recommend not purchasing the methanol kit until they can get lines that don’t leak and fill the trunk up with deadly and expensive methanol. The gains are good but I like peace of mind. I used to be an advocate for jb4 but with all the money they are making I don’t see it being applied to research and development..Version: 2.5.7
✓ Username/password server failsThe app was GREAT until the username/password was implemented. Now I can't use my iPhone turned iPod for sole purpose of using it to connect to JB4 unit. Remove the username/password and this app will gain back its 5 star rating..Version: 2.3
✓ Problems..Good…But ProblemsHave had my Jb4 installed for a couple days now and it’s been a blast. The problems lie mostly in the app. Most, as in 90% of the display options such as rpm, gear, speed, etc. have not worked for me. But, things like boost, gps speed, ecu boost, oil temp, etc. have worked but will stop after a certain amount of time. Customization is great, but the graphs don’t work even after doing a log. Have a check engine light on, probably from my high flow cat for my F30. But, the app says I have no codes showing up so I can delete them. Watched every how to vid and no one is addressing my problems..maybe this needs another patch.Version: 2.5.6
✓ Won’t go past “handshake “ on either of my devices. On second unit and no changeAt a loss.Version: 2.5.5
✓ I Want A RefundThis app does NOT work on the iPhone 12. The jb4 doesn’t even show up in my Bluetooth list. I keep getting an error message saying the pin is invalid but it doesn’t even give the option to input the pin (I know my pin). If you have the new iPhone it’s not worth it. I’m requesting my money back from Apple support smh Gonna get a data cable instead!.Version: 2.4.6
✓ It works, but it’s lame.Giving this a 2-star rating because quite frankly for the price it’s very disappointing. It does what it’s meant to do, yes, so it’s functional. But the interface for settings is crappy, there are UI glitches (i.e. can’t see the rpm limit value), it often crashes when I change my map, and honestly... my biggest complaint is, for the price... make this compatible with Apple Car Play! It’s literally a car app, and we all know it’s illegal to use our phone while driving, so this app is literally asking us to not follow the law in order to use it. I’ll gladly update my rating if they either give it support, but until then I find this app overpriced... but then again, that’s what happens when there’s no competition..Version: 2.4.6
✓ App keeps showing in Mirror imageNot sure if anyone else is having an issue, but I have to keep deleting the app and reloading as when I turn on it keeps giving me a backward or mirror image. Will update rating when this gets figured out. I’m using an iPhone 14 pro max..Version: 2.5.7
✓ Don’t waste your moneyNobody at this company can be bothered to return an email. $28 for an app that doesn’t work. Don’t waste your time with this garbage. Buy a real tuner from ecutek they’ve actually provided me more support for this product than the actual company. HORRIBLE SUPPORT!!! DO NOT PURCHASE!!!.Version: 2.4.6
✓ CarPlay supportI’d really like to see CarPlay support added as well as an updated, cleaner UI. Works well though sometimes it’s finicky to get connected. Still insanely convenient to switch maps on the fly. The connect kit really is a must have for any jb4 owner..Version: 2.3.5
✓ Still no reply from support....I have emailed support regarding an issue to connect my kit, I have not received any response but they were quick to take my £27 the app 👍🏻.Version: 2.4.6
✓ No CarPlay??? Seriously?I spend $600 on the JB4 and another $28 on this app and I have to keep my phone out to see the gauges. Insane. Despite that, app works great. CarPlay is a no brained addition..Version: 2.5.6
🙂 JB4 Mobile Positive Reviews
JB4 Mobile works most of the time. If it is not working for you, we recommend you excersise some patience and retry later or contact JB4 Mobile.
⛔ JB4 Mobile Problems
