Comparison

TOPDON CarPal vs GOOLOO OBD

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TOPDON CarPal

Transform your phone into a powerful car diagnostic tool with this app. It offers comprehensive system scans, full OBDII functionality, and specialized maintenance services for a wide range of vehicle brands. Easily identify issues, access repair data, and generate detailed reports wirelessly.

Highlights
  • Full System Diagnosis
  • Full OBD2 Functions
  • 6 Special Maintenance Functions
  • AutoVIN Vehicle Identification
  • Wireless Bluetooth Connection
  • Diagnostic Report Generation
Features
Read full description

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

About

GOOLOO OBD

This app transforms your phone into a powerful car diagnostic tool via Bluetooth. It offers comprehensive system checks, full OBD2 functions, and specialized maintenance services for a wide range of vehicle brands.

Highlights
  • Full System Diagnosis
  • Full OBD2 Functions
  • 6 Special Maintenance Functions
  • Repair Data Library
  • AutoVIN Vehicle Identification
  • Bluetooth 5.0 Wireless Connection
  • Diagnostic Report Generation
Features
Read full description

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 80 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 EULA:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TOPDON CarPal4 screens
GOOLOO OBD4 screens

Verdict

The call

The clearest difference is rating: TOPDON CarPal at 3.7 against GOOLOO OBD's 1.0. TOPDON CarPal also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (41 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. TOPDON CarPal sells 18 in-app purchases, starting at $4.99 per month and GOOLOO OBD sells 10 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

TOPDON CarPal holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: TOPDON CarPal has 41 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

TOPDON CarPal ships an update every 3 weeks, GOOLOO OBD every 3 months. The most recent releases landed on September 23, 2026 and September 4, 2026 respectively.

Scorecard3 real differences · 7 level
TOPDON CarPal versus GOOLOO OBD: the parameters behind the verdict, then further details
ParameterTOPDON CarPalGOOLOO OBD
PriceFreeFree
Rating3.7 (41 ratings) — better1.0 (1 ratings)
Positive reviews39.3% of reviews—
Number of ratings41 — better1
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS1111.0
Further details — not scored
Size1.6 GB1.6 GB
Age rating4+4+
DeveloperHK TOPDON TECHNOLOGY Co., LIMITEDChangsha Angsi E-commerce Co., Ltd.

Customer experience

TOPDON CarPal

All ratings41 ratings
Positive65.9%
Neutral2.4%
Negative31.7%
Written reviews56 reviews
Positive39.3%
Neutral3.6%
Negative57.1%

GOOLOO OBD

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

18 purchases

TOPDON CarPal

Subscriptions2
  • Monthly Auto-renewal$4.991 Month
  • Renewal Bundle$29.991 Year
One-time16
  • Nissan Gateway 1-Token$11.99
  • Renault Gateway 1-Token$11.99
  • VW SFD Gateway 1-Token$11.99
Show 13 more
  • FCA Gateway 1-Token$11.99
  • FCA Gateway 30-day Access$34.99
  • VW SFD Gateway 30-day Access$34.99
  • Renault Gateway 5 Tokens$116.99
  • Nissan Gateway 5 Tokens (EU only)$116.99
  • Renault Gateway 5 Tokens$147.99
  • VW SFD Gateway 1-year Access$199.99
  • Renault Gateway 10 Tokens$209.99
  • Nissan Gateway 10 Tokens (EU only)$209.99
  • Nissan Gateway 10 Tokens (EU only)$254.99
  • Renault Gateway 20 Tokens$379.00
  • Nissan Gateway 20 Tokens (EU only)$379.00
  • Nissan Gateway 20 Tokens (EU only)$464.99
10 purchases

GOOLOO OBD

Subscriptions2
  • Monthly Auto-renewal$4.991 Month
  • Annual Auto-renewal$29.991 Year
One-time8
  • Renault Gateway 5 Tokens$147.99
  • Nissan Gateway 5 Tokens (EU only)$147.99
  • FCA Gateway 1-year Access (EU only)$229.99
Show 5 more
  • VW SFD Gateway 1-year Access$229.99
  • Renault Gateway 10 Tokens$254.99
  • Nissan Gateway 10 Tokens (EU only)$254.99
  • Renault Gateway 20 Tokens$464.99
  • Nissan Gateway 20 Tokens (EU only)$464.99

Questions

Is TOPDON CarPal free?
TOPDON CarPal is free to download, with in-app purchases available.
Is GOOLOO OBD free?
GOOLOO OBD is free to download, with in-app purchases available.
Which has better reviews, TOPDON CarPal or GOOLOO OBD?
TOPDON CarPal is rated higher. TOPDON CarPal averages 3.7 out of 5 from 41 ratings, while GOOLOO OBD averages 1.0 from 1 ratings.
Do TOPDON CarPal or GOOLOO OBD have ads?
Neither TOPDON CarPal nor GOOLOO OBD shows ads.
Which is updated more often, TOPDON CarPal or GOOLOO OBD?
TOPDON CarPal ships an update every 3 weeks, and GOOLOO OBD every 3 months. Most recently, TOPDON CarPal was updated on September 23, 2026 and GOOLOO OBD on September 4, 2026.

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