SDPROG vs OBD2 Expert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SDPROG
This advanced diagnostic tool allows for comprehensive vehicle system analysis, including emission filters and real-time parameter monitoring. It supports cars, motorcycles, ATVs, hybrids, and electric vehicles, offering detailed insights into engine and onboard modules.
- Comprehensive OBD2 and service diagnostics
- Advanced emission filter analysis (DPF, FAP, GPF, PEF)
- Real-time vehicle parameter monitoring
- DTC reading and clearing
- Support for cars, motorcycles, ATVs, hybrids, and EVs
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SDPROG is an advanced diagnostic tool that enables the diagnosis of cars, motorcycles, ATV (Quads), hybrid, and electric vehicles. The application supports both OBD2/OBDII and service modes, providing comprehensive control over vehicle systems, including advanced monitoring features for emission systems such as DPF, FAP, GPF, and PEF. Support for Emission Filters: DPF, FAP, GPF, PEF The application offers complete diagnostics and monitoring of various types of particulate filters, including: - DPF (Diesel Particulate Filter) – for diesel-powered vehicles. - FAP (Filtre à Particules) – advanced particulate filters for diesels. - GPF (Gasoline Particulate Filter) – particulate filters for gasoline engines. - PEF (Particle Emission Filter) – filters used in modern emission control systems. Features related to emission filters: - Monitoring emission filter parameters: - Soot and ash levels in filters. - Temperatures before and after the filter. - Differential pressure (DPF/PEF Pressure). - Number of completed and failed regenerations. - Time and mileage since the last regeneration. - Support for regeneration processes: - Detailed data on regeneration efficiency. - Information about PEF status in electric and hybrid vehicles. - Emission system diagnostics through DTC (Diagnostic Trouble Codes) reading: - Analysis of errors related to filter regeneration and operation. - Capability to clear error codes. Motorcycle Support in OBDII and Service Modes: The SDPROG application also supports motorcycles, enabling diagnostics in both OBDII and service modes: - Reading and clearing DTCs: - Diagnosing engines, emission systems, ABS, and other modules. - Real-time parameter monitoring, such as: - Coolant temperature, - Throttle position, - Vehicle speed, - Fuel pressure and battery status. ATV (Quads) Support in OBDII and Service Modes: The SDPROG application also supports motorcycles, enabling diagnostics in both OBDII and service modes: - Reading and clearing DTCs: - Diagnosing engines, emission systems, ABS, and other modules. - Real-time parameter monitoring, such as: - Coolant temperature, - Throttle position, - Vehicle speed, - Fuel pressure and battery status. - Advanced service control for emission systems and energy management.dvanced service control for emission systems and energy management. Key Features of SDPROG: 1. Comprehensive diagnostics for OBD2 and service systems: - Supports cars, motorcycles, hybrids, and electric vehicles. - Reads parameters of engines, emission systems, and onboard modules. 2. Advanced analysis of emission systems: - Full control over DPF, FAP, GPF, and PEF. - Real-time diagnostics and error analysis. 3. Vehicle operation monitoring: - Temperatures, pressures, battery voltage, and other key parameters. Why Choose SDPROG: - Supports all vehicle types and emission systems, including PEF in electric vehicles. - Utilizes OBDII standards, ensuring versatile diagnostics. - Intuitive interface ensures ease of use. Check details of compatible car and motorcycle models here: https://help.sdprog.com/en/compatibilities-2/ The SDPROG license can be purchased from authorized sellers: https://sdprog.com/shop/
OBD2 Expert
Diagnose and monitor your vehicle's health by connecting an OBD2 adapter. View sensor data, read and reset trouble codes, and analyze diagnostic information. Developers can use it as a hardware simulator or protocol bridge.
- Vehicle diagnostics and monitoring
- Read and reset diagnostic trouble codes (DTC)
- View current sensor data
- Analyze Mode 6 diagnostics
- Load vehicle status files for testing
- Share vehicle status data
- BLE/WiFi OBD2 ScanTool simulator for developers
- OBD2 protocol communication bridge
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OBD2-Expert is the new competent solution for vehicle diagnostics and monitoring. === The Highlights === A) Reveal vehicle problems before visiting the garage. B) Load vehicle status files and try the functionality of the app. C) Share your vehicle status with others and discuss solutions. D) For developers: Use this app as BTLE-OBD2-ScanTool instead of an expensive hardware simulator. E) For learning: Use this app as BTLE/WiFi Bridge and inspect the protocol communication. === The Details === A) Reveal vehicle problems before visiting the garage. Connect an OBD2 WiFi or BLE adapter to your vehicle and select it from the app. View the current sensor data. Load the diagnostic trouble codes (DTC) and inspect the freeze frame data from when the error occured. The component monitoring can tell you about potential problems by showing contiguous and non-contiguous monitors as well as a detailed analysis of mode 6 diagnostics (if supported by your vehicle). If you can fix your vehicle yourself, reset the saved DTC. B) Load vehicle status files and try the functionality of the app. Tired of buying promising apps that don't work? Try this app for free by loading a vehicle status file instead of connecting it to an adapter. C) Share your vehicle status with others and discuss solutions. With this app, you can capture the state of your vehicle including all DTCs and sensor data – either for later diagnostics or to share with other people. D) For developers: Use this app as BLE-OBD2-ScanTool instead of an expensive hardware simulator. Are you developing an OBD2-ScanTool and not having access to dozens of vehicles with their protocols? This app can work as a BLE-OBD2-ScanTool adapter, sparing you the cost of a professional hardware simulator. E) For learning: Use this app as BTLE/WiFi Bridge and inspect the protocol communication. If you want to learn about the OBD2 protocol communication, you can use your BTLE dongle and bridge it via WiFi to another OBD2 app (this requires an iPad Pro where you can run two apps side-by-side or another physical phone or tablet). === Supported Bluetooth hardware === Please note that this App will _not_ work with Bluetooth 2.x or 3.x adapters! This is a hardware limitation which can't be changed. Many very cheap BTLE OBD2 adapters are not Bluetooth 4.0, so please be aware of that. === Closing Note === OBD2-Expert is not a oneshot project. We want to support and continually develop this app. Hold your breath for exciting coming features. Please use the Support-URL to communicate your feedback to us!
Screenshots
Verdict
The clearest difference is rating: SDPROG at 5.0 against OBD2 Expert's 4.1. SDPROG also leads on in-app purchases (none vs 4) and update cadence (every 9 days vs every 2 months). OBD2 Expert's advantage is ratings volume (725 vs 2) and iOS requirement (9.3 vs 14.0). On price, ads and device support 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. OBD2 Expert sells 4 one-off in-app purchases. SDPROG asks for nothing beyond the download.
SDPROG holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: OBD2 Expert has 725 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 25% of SDPROG's written reviews are positive against 8% of OBD2 Expert's.
SDPROG ships an update every 9 days, OBD2 Expert every 2 months. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.
| Parameter | SDPROG | OBD2 Expert |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.1 (725 ratings) |
| Positive reviews | 25.0% of reviews — better | 8.0% of reviews |
| Number of ratings | 2 | 725 — better |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 85 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | NexDiag Sp z o. o. | Michael Lauer |
Customer experience
SDPROG
OBD2 Expert
Bugs and requests
SDPROG
Not enough reviews yet to summarise bugs or requests.
OBD2 Expert
Reported bugs
3 issues- Freezes during use
- Fails to recognize compatible OBD2 adapters
- Inaccurate vehicle information detection
Requested features
4 requests- Add support for more vehicle models
- Implement live data monitoring
- Include ability to clear diagnostic codes
- Provide free trial period to test functionality
In-app purchases
SDPROG
No in-app purchases
OBD2 Expert
- Operation Mode Bridge$0.99
- Operation Mode ScanTool$2.99
- Operation Mode Simulator$4.99
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- All Features$5.99
Questions
Is SDPROG free?
Is OBD2 Expert free?
Which has better reviews, SDPROG or OBD2 Expert?
Do SDPROG or OBD2 Expert have ads?
Which is updated more often, SDPROG or OBD2 Expert?
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