# TOPDON CarPal — OBDII Diagnostic Scan Tool

> Bluetooth OBDII scanner app for comprehensive car diagnostics and maintenance. (iPhone/iPad app by HK TOPDON TECHNOLOGY Co., LIMITED.)

- Source: https://appshunter.io/ios/app/topdon-carpal/id6478524922 (this page in markdown: same URL + `.md`)
- Developer: [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 3.70/5 from 38 App Store ratings · 48 written reviews indexed
- Age rating: 4+
- Requires: iOS 11 · 1.6 GB
- Languages: American English, Arabic, Bulgarian, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish and 35 more
- Released: 2024-05-31
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/topdon-carpal/id6478524922/reviews.md

## What is TOPDON CarPal?

Easily link the app with your Phone using Bluetooth, transforming your devices into a smart and high-powered diagnostic tool! Packed with essential features like complete OBDII functionality, all system diagnosis, AutoVIN, automatic diagnostic reports, and more, this Bluetooth OBDII scan tool is a must-have for your car. Its versatility shines through with 6 maintenance service functions and coverage for over 60 vehicle brands, making the product a portable and adaptable auto scanner.

Main Features:
1. Full System Diagnosis: Covers Engine, Transmission, Airbag, ABS, ESP, TPMS, Immobilizer, Steering, Radio, Air Conditioning, and more.
2. Full OBD2 Functions: works as an OBD2 code reader and performs all 10 modes of OBD2 testing free for life.
3. 6 Special Functions: Perform Oil Reset, Throttle Adaptation, EPB Reset, BMS Reset, and more.
4. Repair Data Library: Includes DTC Repair Guide, Technical Service Bulletin, DLC Location, Warning Light Library.
5. AutoVIN: Enables automatic vehicle identification for quick diagnosis.
6. Wireless Connection: Utilizes Bluetooth 5.0 with a range of 33 feet/10m. 
7. Graphs, Values, and Dashboard-like Data Display: Ensures easy interpretation of information.
8. Generate Diagnostic Reports: Obtain detailed reports for Systems, Fault Codes, or Data Streams.

Terms of Use (EULA): https://plat.topdon.com/topdon-plat/out-user/baseinfo/template/getHtmlContentById?softCode=Car_Pal_DisplaySW_iOS&language=7&type=25

## Key features

- Full System Diagnosis
- Full OBD2 Functions
- 6 Special Maintenance Functions
- AutoVIN Vehicle Identification
- Wireless Bluetooth Connection
- Diagnostic Report Generation

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Auto-renewal | $4.99 | per month |
| Renewal Bundle | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| FCA Gateway 30-day Access | $34.99 | one-time |
| VW SFD Gateway 1-year Access | $199.99 | one-time |
| VW SFD Gateway 30-day Access | $34.99 | one-time |
| Nissan Gateway 1-Token | $11.99 | one-time |
| Renault Gateway  1-Token | $11.99 | one-time |
| VW SFD Gateway  1-Token | $11.99 | one-time |
| FCA Gateway  1-Token | $11.99 | one-time |
| Renault Gateway 5 Tokens | $147.99 | one-time |
| Nissan Gateway 10 Tokens (EU only) | $254.99 | one-time |
| Nissan Gateway 20 Tokens (EU only) | $464.99 | one-time |
| Renault Gateway 5 Tokens | $116.99 | one-time |
| Renault Gateway 10 Tokens | $209.99 | one-time |
| Renault Gateway 20 Tokens | $379.00 | one-time |
| Nissan Gateway 5 Tokens (EU only) | $116.99 | one-time |
| Nissan Gateway 20 Tokens (EU only) | $379.00 | one-time |
| Nissan Gateway 10 Tokens (EU only) | $209.99 | one-time |


## Recent user reviews (10 of 48)

All indexed reviews: https://appshunter.io/ios/app/topdon-carpal/id6478524922/reviews.md

### 2/5 — Alle Steuergerät auslesen und löschen geht sehr selten

*2026-08-11*

Wenn ich versuche mein Auto auszulesen fragt der nach dem Hersteller und zeigt mir den vin, wenn ich auch weiter gehe sagt der vin korrigieren oder Fahrzeug Manuel auswählen. Egal was man an tippt die App sagt Fahrzeug wird nicht unterstützt was kein Sinn ergibt da das Fahrzeug ja offensichtlich unterstützt wird.

### 5/5 — Director

*2026-07-13*

Very happy. Found the fault. Chat gpt found part and fitted all working. Also dpf clean.

**Developer response:** Thank you for your good review! We're happy that our products have been helpful to you. If you ever have suggestions or need assistance, don't hesitate to reach out at support@topdon.com.

### 4/5 — Good but could be better

*2026-07-05*

Not a bad tool but could be alot better.
The actual values  section is very lacking, this bit needs so much more info in it like DPF values.

**Developer response:** Thank you for the honest feedback — we’re sorry the tool hasn’t fully met your expectations in this area.

We understand what you mean about the Actual Values section, especially for things like DPF data. More detailed live data can make a big difference when diagnosing or confirming a repair. We’ll pass this feedback to our product and software team so they can keep improving the coverage and data display in future updates.

We really appreciate you taking the time to point this out.

### 2/5 — Can’t login reset

*2026-07-04*

I’m trying device transfer it emails the code link, everytime it tells me the code it incorrect.. 
trying to contact customer service is impossible

**Developer response:** Hi there, could you please provide a photo of your device's SN and proof of purchase to support@topdon.com so we can unbind it for you.

### 5/5 — Perfect

*2026-07-01*

Has every option I need to do stuff to my car plus and I can scan other cars if needed for any codes, no trouble connecting

**Developer response:** Thank you for your good review! We're happy that our products have been helpful to you. If you ever have suggestions or need assistance, don't hesitate to reach out at support@topdon.com.

### 3/5 — Pression de gazole

*2026-06-30*

Bonjour
Dommage que l'ont puisse pas avoir le paramètre de pression de gazole sur peugeot 406 et voir les autres marques aussi, pression de pompe dans le reservoir et pression de rampe injection, s'il vous plais une mise à jour pour sa.
Cordialement 
Merci

**Developer response:** Nous vous prions de nous excuser pour la gêne occasionnée et comprenons parfaitement votre frustration. Pourriez-vous nous communiquer le numéro de série (SN) de votre appareil et nous envoyer une vidéo à l'adresse support@topdon.com ? Nous traiterons votre problème en priorité. Vos commentaires sont précieux et nous permettent d'améliorer constamment nos services.

### 1/5 — Autozone is better

*2026-06-28*

App is useless. Plus they threw a subscription to pay for. Works as a code reader and a very soft ecu data reader. I get more ecus and information for free from autozone.

**Developer response:** We sincerely apologize for the inconvenience. Could you please specify the issue you're experiencing? Please contact us at support@topdon.com, and our support team will prioritize your case. We are committed to providing more comprehensive services to every user. We understand your concerns regarding the cost, but this is necessary to maintain the software's advanced capabilities and compatibility. Your feedback is invaluable to us—thank you for your understanding and support.

### 5/5 — Citroen c4 grand Picasso

*2026-05-24*

Does not show Citroen 
in the list for service.
All ok now getting the hang of it thanks 👍

**Developer response:** Hi there, it does support Citoren. You can check the coverage list here: https://www.topdon.com/pages/vehicle-coverage?lag=7&pro=Diagnostic%20Functions&sea=target&veh=0&mod=20&nowS=CITROEN&Let=C
We sincerely apologize for the inconvenience and fully understand your frustration. Could you please send us your device serial number (SN) and record a video to us via support@topdon.com. We will prioritize resolving your issue.Your feedback is invaluable to us as we strive to provide better service.

### 1/5 — Totaler Müll

*2026-05-17*

Erkennt keinen MG ZT was soll das??

**Developer response:** Wir entschuldigen uns für die Unannehmlichkeiten. Können Sie bitte das Problem angeben, das Sie erleben? Bitte kontaktieren Sie uns unter support@topdon.com und unser Support-Team wird Ihren Fall priorisieren. Ihr Feedback ist für uns von unschätzbarem Wert – vielen Dank für Ihr Verständnis und Ihre Unterstützung.

### 1/5 — Subscription

*2026-04-05*

Need to pay yearly subscription for a device you have to pay to get. Scam

**Developer response:** Hello, this device can be updated for free within one year from the date of activation, as indicated on the purchase page. To ensure a more comprehensive service for every user, we understand your concern about the cost, but this is also to maintain the progressiveness and compatibility of the software. If you ever have suggestions or need assistance, don't hesitate to reach out at support@topdon.com.

## Frequently asked questions about TOPDON CarPal

### What does the TOPDON CarPal app do?

This app transforms your phone into a powerful OBDII diagnostic scan tool. It allows for comprehensive full system diagnosis, including engine, transmission, and ABS, as well as all 10 modes of OBD2 testing. You can also perform various maintenance services and access a repair data library.

### What are the key features of this diagnostic app?

Key features include full system diagnosis across multiple vehicle modules, complete OBD2 functions free for life, 6 special maintenance functions like Oil Reset and EPB Reset, AutoVIN for quick vehicle identification, and wireless Bluetooth connectivity. It also generates detailed diagnostic reports and displays data in an easy-to-interpret format.

### Is this app free to use?

The app itself is free to download and offers full OBD2 functions for life at no cost. However, it does have in-app purchases, likely for accessing advanced features, additional maintenance functions, or specific vehicle coverage beyond the basic OBD2 capabilities.

### What vehicles are compatible with this app?

The app offers coverage for over 60 vehicle brands, making it a versatile auto scanner. It connects to your car via a Bluetooth OBDII device and supports a wide range of makes and models for diagnostic and maintenance tasks.

### How can I use this app for car maintenance?

This app is ideal for performing routine car maintenance. It offers 6 special service functions such as Oil Reset, Throttle Adaptation, and EPB Reset, allowing you to manage these tasks directly from your phone. Combined with full system diagnosis, it provides a comprehensive solution for keeping your car in optimal condition.

## Version history (last 5 releases)

### 2.82.001 — 2026-06-30

Bug fixes and performance improvements.

### 2.81.001 — 2026-06-23

Bug fixes and performance improvements.

### 2.80.002 — 2026-06-15

1. Removed the previous download and usage restrictions for the three brands.

### 2.75.001 — 2026-02-07

Bug fixes and performance improvements.

### 2.70.005 — 2026-01-14

1. Enabled DTC clearing feature after the expiration of the diagnostic software.
2. Added third-party login options for Google and Apple.
3. Optimized the data stream combination interface.

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## More apps by HK TOPDON TECHNOLOGY Co., LIMITED

- [TopGuru](https://appshunter.io/ios/app/topguru/id6451488210)
- [TopInfrared](https://appshunter.io/ios/app/topinfrared/id6452017744)
- [TOPDON BatteryLab](https://appshunter.io/ios/app/topdon-batterylab/id6462673217)
- [TopScan Pad](https://appshunter.io/ios/app/topscan-pad/id6476964730)
- [TopScan VAG](https://appshunter.io/ios/app/topscan-vag/id6615073467)

All apps by HK TOPDON TECHNOLOGY Co., LIMITED: https://appshunter.io/developer/1846276192

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*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 2026-08-29.*