DPF Companion

Real-time DPF regen monitoring

Only for iPhone

$11.99 · In‑App Purchases

iPhone

Monitor your diesel DPF health in real time. Know exactly when your next regeneration will happen & the app will estimate when the ongoing regen will complete. 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.

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• Swipeable dashboard — swipe between 4 screens (Soot %, Time Remaining, Soot Calc, Speed/RPM) matching the companion display device • New "Default Screen" setting — choose which screen the app opens to on launch • CarPlay improvements — shows your last-known DPF data when no dongle is connected, with live progress messages during connection • Improved regen detection for new engine types — regens are now detected even on vehicles where the regen flag sensor isn't available • Fleet data automatically re-syncs to the cloud on first launch • Consistent UI styling throughout Settings and Fleet Insights • Arc width fix on Speed/RPM screen

Version 1.0.4

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

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Nifty Noodle Limited
Size
  • 29.6 MB
Category
  • Utilities
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
Location
  • This app may use your location even when it isn’t open, which can decrease device battery life.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Nifty Noodle Limited
  • Developer Website
  • Privacy Policy