iOBD2 vs OBD Mate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iOBD2
Transform your iPhone or iPad into a powerful vehicle diagnostic tool. Read engine data, check for issues, and monitor real-time performance metrics like fuel consumption and acceleration. Customize your dashboard to display only the information you care about.
- Read and clear diagnostic trouble codes (DTCs)
- Access live engine data
- View freeze frame data
- Monitor readiness test status
- Read vehicle information (VIN, CALID, CVN)
- Perform O2 sensor and EVAP system tests
- Customize real-time dashboards
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iOBD2 is an app for your car. It makes your iPhone/iPod touch/iPad into a cool vehicle diagnostic tool to read your engine data. 1. When you are driving and MIL is on, you can check your car and know whether you can go on or not. 2. When there are troubles with your car, you can check it yourself and know what the problems are, and then ask for help by twitter or facebook from others. 3. You can know real time information such as fuel consumption, torque, acceleration, etc from iOBD2 on your iPhone/iPod touch/iPad. 4. iOBD2 can customized your gauge and after select the data that you are interested in, it will show you only the data which you concern. 5. You can share the record what you get from the car by iOBD2 on twitter and facebook. !!Attention: 1.Please make sure that your vehicle is with OBD-II/EOBD compliance before purchasing! 2.You can upgrade your general iOBD2 to iOBD2-BMW or iOBD2-VAG when you only have iOBD2 hardware , and you only need to pay $80.00 for iOBD2-BMW or $30.00 for iOBD2-VAG without paying extra money for hardware. Buy multiple gauges iOBD2 with scream and best price! (Note: Not all OBD-II compliant vehicles support all these parameters) DISCLAIMER: After buy our iOBD2 hardware interface, and download iOBD2 App, then your iPhone/iPod touch/iPad can communicate with the vehicle. You can buy it on our ebay shop or amazon shop or contact our sales. Function: 1. Diagnostic [Read DTC]: Read the current DTC that engine has stored, and show DTC info. [Clear DTC]: Clear all the current DTC. [Live data]: Read all the running parameters that related to the ECU. [Freeze frame data]: When OBD system sets the DTC, it will record the system running parameters related to the malfunction at the same time. And these parameters are called freeze frame data. [Readiness test]: Readiness reflects the status that all the valid diagnostic functions. [Read vehicle info]: Read vehicle info such as Vehicle Identification Number (VIN), Calibration IDs (CALID) and Calibration Verification Number (CVN). [O2 Sensor test]: It allows access to the on-board oxygen sensor monitoring test results. The same information may be obtained by the use of [Mode 6 test]. [Mode 6 test]: It allows access to the results for on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. [EVAP System Test]: The purpose of this service is to enable the external test equipment to control the operation of an on-board system, test or component. 2. My dashboard [Idle mode]: engine rotational speed, water temperature, battery voltage, mass air flow, instant fuel consumption (static), ignition timing, ever wished you had your own customizable gauges, showing only the data you were interested in. [Cruise mode]: vehicle speed, vehicle travel time, vehicle travel average speed, continuous running mileage, avg. fuel consumption., ever wished you had your own customizable gauges, showing only the data you were interested in. [Sport mode]: engine rotational speed, vehicle speed, water temperature, ins. fuel consumption(dynamic), acceleration speed, ever wished you had your own customizable gauges, showing only the data you were interested in. [Performance mode]: engine rotational speed, vehicle speed, power, torque, horsepower, ever wished you had your own customizable gauges, showing only the data you were interested in. 3. Performance test [Accelerate/Decelerate test]: Test acceleration / deceleration process time and distance. [0 to 400m acceleration test]: Test spends time from 0 to 400 meters. 4. Settings You can set units, alarms, coefficient and also customized the dashboard here. 5. History After record the history data, you can share the record what you get from the car by iOBD2 on Twitter and facebook. Package Hardware: iOBD2 unit Software: iOBD2 client software on app store Visit the iOBD2 product page for more info: www.iobd2.com
OBD Mate
Diagnose vehicle faults and receive driving assistance using your smartphone or tablet. Connect via Bluetooth to read and clear error codes, monitor sensor data, and view custom dashboards for a better driving experience.
- Fault diagnosis
- Driving assistance
- Read and clear codes
- Freeze frame data
- O2 sensor monitoring
- Customizable dashboard
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The OBD assistant is a driving companion that can communicate with the vehicle terminal through Bluetooth using smartphones and tablets to complete functions such as fault diagnosis and driving assistance. It not only has rich and comprehensive vehicle detection and diagnosis functions such as fault code reading and clearing, freeze frames, battery voltage, gearbox, and performance testing, but also has a cool instrument panel and driving assistance functions, making driving more fun.
Screenshots
Verdict
The clearest difference is rating: iOBD2 at 2.8 against OBD Mate's 1.8. iOBD2 also leads on review sentiment (23% vs 9%) and iOS requirement (6.0 vs 13.0). OBD Mate's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads 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.
iOBD2 holds the better App Store score, 2.8 against 1.8. Both are backed by a comparable volume of ratings — 84 and 115 respectively. Written reviews point the same way: 23% of iOBD2's written reviews are positive against 9% of OBD Mate's.
Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.
| Parameter | iOBD2 | OBD Mate |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (84 ratings) — better | 1.8 (115 ratings) |
| Positive reviews | 23.4% of reviews — better | 9.4% of reviews |
| Number of ratings | 84 | 115 — better |
| Update frequency | Every 5 weeks | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 6.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 90 MB | 365 MB |
| Age rating | 4+ | 4+ |
| Developer | 翔宇 金 | Autophix Tech Co., Ltd |
Customer experience
iOBD2
OBD Mate
Bugs and requests
iOBD2
Reported bugs
4 issues- Crashes when checking DTCs
- Fails to connect to Bluetooth/WiFi adapters
- Incorrect sensor readings
- Compatibility issues with newer vehicles
Requested features
5 requests- Update for newer iOS versions
- More frequent updates
- Support for more vehicle makes/models
- Customizable dashboards
- Live data for more sensors
OBD Mate
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iOBD2
No in-app purchases
OBD Mate
No in-app purchases








