ByteFlasher vs OBD2 Cat
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ByteFlasher
Unlock your vehicle's performance potential with this mobile tuning solution. Optimize horsepower, torque, and fuel efficiency wirelessly. Diagnose and clear engine trouble codes with ease.
- Stage 1 & Stage 2 Performance Tunes
- Advanced Customization Options
- Unlimited Tune Adjustments
- Wireless OBD2 Connectivity
- Read & Clear DTCs
- Data-Driven Performance Tuning
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ByteFlasher – Unlock Your DME’s True Potential! Performance Tuning Made Simple ByteFlasher is the ultimate mobile tuning solution for bimmer enthusiasts. Using our intuitive app and wireless OBD2 adapter, you can unleash hidden horsepower, enhance torque, and optimize fuel efficiency—all from your smartphone! Features & Capabilities - Stage 1 & Stage 2 Performance Tunes – Maximize your car’s power and response - Advanced Customization – Adjust engine speed, throttle response, burble tuning, launch control & more - Unlimited Tune Adjustments – Modify your tune as many times as you want without extra costs - Seamless Wireless Connectivity – No need for a laptop or cables - Read & Clear DTCs – Diagnose and reset engine trouble codes instantly - Data-Driven Performance – Our performance tunes are backed by meticulous testing - Security & Reliability – Industry-leading safety protocols for worry-free tuning - Designed in the USA – Engineered with quality and performance in mind How It Works 1. Purchase the ByteFlasher Wireless Adapter from our store (required for app functionality) 2. Plug the adapter into your cars’s OBD2 port 3. Connect your smartphone via WiFi 4. Choose your tune & customize settings 5. Flash your DME in minutes and experience the difference! Designed for Bimmer Enthusiasts ByteFlasher supports a range of classic bimmer vehicles including the E46 M3. More models coming soon! Important Note The ByteFlasher app is free to download, but it requires the purchase of the ByteFlasher wireless adapter for full functionality. Without the adapter, the app will not be able to connect to your vehicle. For more information, visit our website at byteflasher.com. Get Started Today! Transform your driving experience with ByteFlasher—the fastest, easiest way to tune your DME. Download now!
OBD2 Cat
This app reads diagnostic trouble codes and live vehicle data from compatible cars using a Bluetooth OBD2 adapter. It helps drivers understand dashboard warnings by checking engine codes, viewing sensor data, and retrieving vehicle identification information.
- Read diagnostic trouble codes (DTCs)
- Clear supported trouble codes
- View live engine and sensor data
- Check VIN, make, model, and year
- Auto Scan for codes
- View OBD protocol and connection status
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Your car has a story. OBD2 Cat helps you read the clues. OBD2 Cat is a straightforward Bluetooth OBD2 car scanner for compatible vehicles and adapters. Read diagnostic trouble codes, view live vehicle data, and check key vehicle details from your iPhone. With OBD2 Cat, you can: - Read Check Engine diagnostic trouble codes (DTCs) - Clear supported trouble codes - View supported live engine and sensor data - Check and copy your VIN, plus available make, model, and model year - Turn on Auto Scan to scan for codes after connecting - See the active OBD protocol and connection status Designed for drivers who want a simple first look when a dashboard warning appears, without the clutter of a professional workshop tool. Use a Bluetooth OBD2 adapter compatible with your iPhone and vehicle. If you use an ELM327-style adapter, make sure it supports Bluetooth Low Energy (BLE). Important: Clearing a trouble code does not repair the underlying issue. A warning light may return if the fault remains. For safety-critical warnings or persistent problems, have the vehicle inspected by a qualified technician.
Screenshots
Verdict
The clearest difference is device support: ByteFlasher at 3 against OBD2 Cat's 1. On price, rating, ratings volume and update cadence 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.
On the App Store both sit at effectively the same score — 5.0 for ByteFlasher against 5.0 for OBD2 Cat. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
ByteFlasher ships an update monthly, OBD2 Cat every 3 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.
| Parameter | ByteFlasher | OBD2 Cat |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 70 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Renovelo LLC | Roman Tikhonychev |
Customer experience
ByteFlasher
OBD2 Cat
In-app purchases
ByteFlasher
No in-app purchases
OBD2 Cat
No in-app purchases









