# Advancer AD20 — user reviews > 36 indexed App Store user reviews of Advancer AD20 by Shenzhen Yunjia Future Intelligent Technology Co., Ltd., rated 2.35/5 from 62 ratings. - Source: https://appshunter.io/ios/app/advancer-ad20/id6444664990/reviews - App overview in markdown: https://appshunter.io/ios/app/advancer-ad20/id6444664990.md - Rating breakdown: 5★ 15 · 4★ 3 · 3★ 5 · 2★ 4 · 1★ 34 ## Newest reviews (12 of 36) ### 1/5 — Can only pair once *2024-11-22, version 1.6* Wife paired this device using her phone, so now she is the only one that can do OBD scans. It will not pair to mine as well. Awful design. ### 1/5 — Not working *2024-11-01* Not working after iOS 17.5 update. Please fix! Crashes every time it goes into vehicle self check. I’m just going to get a better product, they’ve had enough time to do an update!!!! ### 1/5 — Trash *2024-10-23, version 1.6* Slow to respond very limited data can be selected unless ### 1/5 — Don’t connect after iso 17.3 update *2024-02-25, version 1.3* After iso update to 17.3 no longer connect ### 1/5 — Disappointed *2024-02-06, version 1.3* 1. App is not well laid out. Is awkward to navigate. Not intuitive app 2. Is little hard to read. Small text, in light gray on white background??? Why? 3. Does not remember most recent fault scan with codes. 4. Requires logging in for no reason at all Very Disappointed, returning the device that this app pairs with, to the retailer. ### 1/5 — Barely any data *2023-12-22, version 1.3* 1998 Subaru legacy It says my MIL monitors are all at 0 despite them not being. The only live data it shows is rpm every 5 seconds for 2 seconds and coolant temp every few seconds for a second. Pretty useless device with this car. Will be looking to return it. ### 2/5 — Advancer AD20 *2023-11-29, version 1.3* How come no Chinese Language? ### 1/5 — Item doesn’t work *2023-09-28, version 1.0.9* Can’t use it on my car. 2000 Altezza ### 1/5 — 连自己祖国的语言都没有 *2023-08-28, version 1.0.9* 垃圾 ### 1/5 — Cheap Junk *2023-08-24, version 1.0.9* Contacted support they replaced my reader and it still won’t pair. ### 1/5 — Bad app *2023-08-07, version 1.0.9* I can’t seem to get past the login screen either ### 1/5 — App *2023-08-07, version 1.0.9* Trash app can’t even get past the log in can’t believe I spent money on this scanner ## Most critical reviews (10 lowest-rated) ### 1/5 — Can’t connect *2026-05-01, version 1.16* Cant connect keeps saying the scanner is tied to another acct ### 1/5 — App doesn’t work *2026-03-25, version 1.15* REQUIRED to make an account for a Bluetooth tool. Wasn’t able to make one anyway because my usual and only email is “invalid” by this app’s standards ### 1/5 — Does not connect *2025-10-18, version 1.12* Rubbish.. This does not connect to my 2020 fiat 500 Abarth 595 so therefore cannot reset the maintenance light..??? ### 1/5 — Waste of money *2025-09-20, version 1.12* Can only be used on 1 car or phone changer either and the device stops working saying already registered to another vehicle ### 1/5 — can’t do anything *2025-06-30, version 1.9* Hopeless device, can’t register, can’t login, can’t contact support, in fact can’t do anything, the dongle was a total waste of money. I would not recommend. ### 1/5 — Sad support *2025-05-14, version 1.9* God forbid you need support at 11AM on a Wednesday. That's not "standard business hours" account recovery is non existent, and if you create another one you can't use your device. If you lose your log in, you've thrown your money away. Do not purchase unless you prefer to piss money away. ### 1/5 — Doesn’t work *2025-04-17, version 1.9* This app worked for a while but now it won’t let me log in or connect my device. Every time it loads the request times out. ### 1/5 — No working *2025-03-23, version 1.8* I have changed the phone now the app doesn’t logins ### 1/5 — Ripped off *2025-03-12, version 1.7* The app doesn’t work at all ### 1/5 — Can’t connect *2025-01-26, version 1.7* Times out for logging in and if it does login in then it times out connection to the device! Please fix it. ## Most praised reviews (10 highest-rated) ### 5/5 — Danny *2026-03-24, version 1.15* The app was easy to install and using my iPad pairing was straight forward I did full diagnostic on my car and fully satisfied with the results. Highly recommended. ### 5/5 — Works like it should *2023-10-26, version 1.1* No problems with the scanner or app. Created an account, followed the instructions connecting the scanner to my phones Bluetooth. Loads and works every time. I’ve had some codes and managed to fix the problem and clear the codes. Works as it should. 2004 Chevy Tahoe iPhone 14 Thanks. ### 5/5 — Works for me *2023-07-20, version 1.0.8* App functions fine on my iPhone 12. Car was running a little off but no codes. Was able to diagnose using the live data feature and mode 6 feature. ### 4/5 — Not working *2024-05-20* Not working after iOS 17.5 update. Please fix! ### 4/5 — Luigi *2023-08-02, version 1.0.9* Well apps work well only have issue to launch app sometime when is connected on mobile network 4g or 5g,,all I need find wifi and then works fine again,hope you will fix ptherwise very nice tool,work perfect thanks ### 3/5 — Cant register *2025-03-21, version 1.8* Cant register to an app having issue with response ### 3/5 — . *2024-06-06, version 1.6* For those who had problems with pairing, delete the series and write only one name ### 3/5 — 没有中文 *2024-01-22, version 1.3* 语言设置里面没有中文。 ### 3/5 — Advancer AD20 *2023-11-29* Please add More languages, let buyers have other choice. Thanks ! ### 2/5 — Doesn't really have info *2025-07-15, version 1.11* This gets the basic codes and some extra codes that I think are Toyota codes. But not codes i can change like turning off the seat belt alarm. Also doesn't turn off the maintenance light but did automate filling in the search field on Google so i could research how to. I'm familiar with doing that because it displays detailed information about every trouble code the same way. I've been asleep it seems witb uses of LLM Ai like ChataGpt or even their country's Deepseek. I use those to summarize my Internet content searches now to save lots of time. But to say I've been asleep, then they are Rip Van Winkle. I can imagine them now saying what is this Rip van and what is Ai? Be ready to do your own research on the codes because this app doesnt have it. It actually doesnt have info on my 2015 Toyota Camry which is a common car in the USA. Maybe they only have info in Chinese made cars like Ford and GM. Feeling a bit bamboozled about the lack of info. That would drop it to a generous 3 star. But after an update that I had to do and want to because it might actually have the info it lacks but it never does. Two of the bonus features that they generously give is having to log in with a user name and password every time i use the program. I dont know why it need that. I guess if im borrowing someine elses phone and happen to be in tbeir car and I'm showing off my Advancer. AD20 and they don't have the app then i can install it and get my car info. --- *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 2026-07-05.*