DPF Companion
Real-time DPF regen monitoring
Only for iPhone
$11.99 · In‑App Purchases
iPhone
Real-time DPF and regen monitoring, now in six languages. Regens detected on more engines, new driving and regen calendars, and a CarPlay demo mode.
DPF Companion is a real-time diesel particulate filter monitoring app for diesel vehicle owners. Connect to your vehicle via a Bluetooth OBD-II dongle and get instant visibility into your DPF health, regeneration status, and engine performance.
KEY FEATURES:
• Live DPF Monitoring — Track soot loading in real-time with a visual gauge showing percentage and grams. Know exactly when your next regeneration will occur.
• Regen Countdown Timer — Estimates minutes remaining until your next DPF regeneration starts, or until an active regen completes. Never be caught mid-regen on a short trip again.
• Smart Vehicle Alerts — Notifications when a regen is approaching, when one is predicted based on your driving pattern, when fuel efficiency drops, and when your device needs syncing.
• Trip Recording — Automatic trip detection with GPS routes, fuel consumption, driving style analysis, and distance tracking. Works with phone connected or standalone device.
• Multi-Vehicle Support — Automatically detects and tracks multiple vehicles. Each vehicle maintains its own trip history, regen data, and health scores.
• DPF Health Dashboard — Overall health score based on regeneration patterns, soot trends, and driving habits.
• Fault Code Scanning — Read diagnostic trouble codes from all vehicle ECUs. Read-only — never writes to your vehicle.
• Fleet Insights — Compare your vehicle's DPF performance against other vehicles.
• CarPlay — View DPF status, soot levels, and regen countdown directly on your car's built-in display.
• Companion Device — Optional ESP32 hardware device that mounts in-vehicle for a dedicated always-on DPF display with buzzer alerts. Buy the hardware directly from Waveshare for ~€25 and flash it yourself using our free web flasher.
• Pay What Is Fair — Voluntary support option. The app is fully functional regardless. If it helps you, consider supporting continued development.
SUPPORTED VEHICLES:
DPF Companion works with Volkswagen Group (VW, Audi, Skoda, SEAT) diesel vehicles equipped with a DPF.
Supported engine codes include: CAAC, CAGA, CAHA, CAPA, CAYA, CAYB, CAYC, CCWA, CFCA, CFFB, CFGB, CFGC, CFHA, CFHC, CFHD, CFJB, CFWA, CGLB, CGLC, CJCA, CJCB, CJCD, CLAB, CLHA, CNHA, CNHC, CRKB, CRLB, CRMB, CRUA, CSHA, CUAA, CUDC, CUNA, CUPA, CUSA, CUSB, CUTA, CUUB, CUWA, CVUA, CVUB, CVUC, CXBA, CXEB, CXEC, CXFA, CXGA, CXGB, CXHA, CXHB, CXHC, CXXA, CXXB, CZZA, DAUA, DAVA, DBGC, DCBC, DCBE, DCXA, DDWA, DETA, DEUA, DEUC, DEWA, DEZE, DFBA, DFCA, DFEA, DFFA, DFGA, DFHA, DFLA, DFLB, DFSB, DFSD, DFSF, DFYA, DGDA, DGDB, DGTE, DGTC, DGTD, DHXA, DJGA, DLUB, DMMA, DMZA, DMZB, DNAA, DNAB, DNAC, DSRA, DSRB, DSSA, DSTB, DTNA, DTPA, DTPB, DTRA, DTRD, DTRB, DTRC, DTRE, DTSA, DTSB, DTUA, DTTA, and others.
If your engine code isn't listed or sensors aren't detected, the app will let you know what works and offer to contact support.
COMPATIBILITY NOTE:
• Fully supported: VW Group diesel vehicles manufactured approximately 2012–2020 with EA288 or late EA189 engines.
• Older vehicles (pre-2012): Some older diesel ECUs use legacy diagnostic protocols not accessible via standard BLE OBD-II adapters. Basic data (RPM, speed, coolant) may still work but DPF-specific sensors may not be available.
• Newer vehicles (2020–2023): Some vehicles with SFD1 security gateways may restrict access to DPF-specific sensors. Standard OBD-II data remains accessible as required by law.
• Newest vehicles (2024+): Vehicles with SFD2 security gateways block manufacturer-specific diagnostic data via standard OBD-II adapters. This is a manufacturer-imposed restriction affecting all unlicensed third-party tools.
REQUIREMENTS:
• Bluetooth Low Energy ELM327-compatible OBD-II dongle (e.g., Carista EVO, Carista Original, Vgate iCar Pro)
• Diesel vehicle with DPF (Volkswagen, Audi, Skoda, SEAT)
• iOS 16.0 or later
The app includes a Simulation Mode for exploring all features without vehicle hardware.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Now available in German, French, Irish, Italian, Dutch and Spanish. The app follows your iPhone's language, or choose one in Settings
• Regenerations are now detected on more engines, those engines where the ECU doesn't report an active regen now have a fallback detection
• A regeneration that continues over multiple drives is now recorded as one regen with its true start
• Soot % and Time Remaining are steadier: they learn from your recent regens, and a new vehicle shows a note until its first regen is recorded
• New Driving Days and Regen Days calendars on Your Trips and Your Regens
• Your Regens and Your Trips open faster, with Show more for older entries and a back-to-top button
• The full comprehensiv vehicle scan when sensors are not detected now finishes within 25 minutes, with a countdown and a Stop button
• CarPlay: tap Try Demo to see sample data when no OBD adapter is connected
• Stability and performance improvements
The developer, Nifty Noodle Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Diagnostics
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Nifty Noodle Limited
- Size
- 31.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Nifty Noodle Limited
