EasyDiag4 vs OBDGO PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EasyDiag4
This application connects to your vehicle via Bluetooth to perform comprehensive fault diagnosis across various systems. It supports reading and clearing diagnostic trouble codes, viewing data streams, and resetting service lamps, catering to the needs of the vehicle maintenance market.
- Bluetooth vehicle data interaction
- One-click intelligent diagnosis
- Full system fault diagnosis
- Read DTCs
- Read Data Streams
- Clear DTCs
- Reset Service Lamp
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EasyDiag4 vehicle diagnostic application is a vehicle fault diagnosis tool software developed based on the mobile intelligent terminal platform. It is suitable for the vehicle maintenance market. It uses a dedicated connector to perform data Bluetooth interaction with the vehicle and supports one-click intelligent diagnosis. It can realize fault diagnosis for full systems such as power system and safety system, involving Read DTCs, Read Data Streams, Clear DTCs, and Reset Service Lamp. The software contains EOBD, maintenance and special function software, mainstream model diagnostic software, etc. It can meet the actual needs of most users for testing vehicles.
OBDGO PRO
Unlock hidden vehicle features and perform OBD-II diagnostics with this app. It allows you to activate functionalities like wireless CarPlay, disable start-stop systems, and scan/clear trouble codes. Generate detailed diagnostic reports to understand and repair your car.
- Unlock hidden vehicle features
- OBD-II code scanning and clearing
- Generate and share diagnosis reports
- Activate wireless CarPlay
- Disable start-stop systems
- View freeze frame data
- Interactive data stream graphing
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OBDGO PRO besides basic OBD-II diagnosis, vehicle hidden features unlock is available. Let everyone enjoy the fun of modding! 1. Unlock Hidden Features Support Models: Porsche, BMW, Mercedes, Ford, Audi, Volkswagen, more available vehicle and year models please check in app. Popular features such as: - Activate Wireless CarPlay - Disable Start Stop - Enable Engine Performance Menu - Change Turn Signal Blicks Times - Change Head Unit Start Animation - Activate G-Force Display More features are waiting for you to explore! 2. OBD-II Diagnosis Vehicle coverage: GM, Ford, Chrysler, Toyota, Nissan, Mazda, Mercedes, Mitsubishi, Hyundai/Kia, BMW/Mini, Honda/Acura, Volkswagen/Audi, Subaru, Buick, Chevrolet, Cadillac, Lincoln, Dodge, Jeep, Smart, Skoda, Porsche, FIAT, Renault, Peugeot, Citroen, Landrover, Jaguar, Lexus, Infiniti, Suzuki, Ssangyong. Features such as: - Scan trouble codes - Clear trouble codes - Generate, print, and share Diagnosis Reports - Mode 6 (On-Board Monitoring Test Results) - Smog Readiness Check - Freeze Frame Data - Multiple data streams interactive graphing and logging - Wireless bluetooth connection with vehicle - Metric and Imperial settings 3. Diagnosis Report Diagnosis report is specific to your vehicle's year, make and model. Providing a cryptic code definition by giving you validated fixes for your trouble codes. Save time by using OBDGO PRO to know your vehicle how to repair in advance. OBDGO PRO is a professional scan tool and the APP is free to install, but it does require the purchase of sensor to communicate with your vehicle. Sensor simply connects to your data port located inside your car near the steering wheel. Every car made since 1996 is global compatible can be used anywhere in the world.
Screenshots
Verdict
The clearest difference is review sentiment: OBDGO PRO at 69% against EasyDiag4's 0%. OBDGO PRO also leads on rating (4.6 vs 2.9) and update cadence (every 2 months vs every 18 months). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
OBDGO PRO holds the better App Store score, 4.6 against 2.9. Both are backed by a comparable volume of ratings — 19 and 25 respectively. Written reviews point the same way: 0% of EasyDiag4's written reviews are positive against 69% of OBDGO PRO's.
EasyDiag4 ships an update every 18 months, OBDGO PRO every 2 months. The most recent releases landed on October 16, 2026 and September 30, 2026 respectively.
| Parameter | EasyDiag4 | OBDGO PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (19 ratings) | 4.6 (25 ratings) — better |
| Positive reviews | 0.0% of reviews | 69.2% of reviews — better |
| Number of ratings | 19 | 25 — better |
| Update frequency | Every 18 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 114 MB | 137 MB |
| Age rating | 17+ | 17+ |
| Developer | Launch Tech Co., Ltd | OBD GO TECH CO LTD |
Customer experience
EasyDiag4
OBDGO PRO
In-app purchases
EasyDiag4
No in-app purchases
OBDGO PRO
No in-app purchases









