DPF Scan for VAG vs CarCoding
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DPF Scan for VAG
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Modern diesel engines rely on the DPF to capture soot and reduce emissions. When the DPF isn’t regenerating properly, you can experience reduced performance, increased fuel consumption, or warning lights. DPF Scan for VAG group vehicles, turns complex sensor data into simple, actionable information—so you can drive smarter and avoid surprises. Features: • Live DPF soot load and regeneration status • CarPlay - View live DPF data on your vehicle's dashboard • Supports VAG vehicles • Simple, user-friendly interface • Free trial, & Low cost subscription • Works with popular Bluetooth OBD adapters NOTE: Not all engines are supported. We are constantly adding compatibility to both newer and older vehicles. Please use the free trial to test for compatibility. You can even upload some data to us from the settings page, and we will try our best to add support. NOTE: The diagnostic adaptor must be Bluetooth LE (Bluetooth 4), based on the ELM327 chipset, such as Carista, Carista EVO, IOS-Vlink, etc. SUBSCRIPTION REQUIRED: DPF Scan requires an active subscription to access vehicle data and DPF features. A free 7-day trial is included for all new users to ensure compatibility with the vehicle and diagnostic adapter. After the trial, you can choose between a monthly or yearly subscription You will be charged after the trial period unless cancelled at least 24 hours before renewal. You can manage or cancel your subscription anytime in your App Store settings. Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
CarCoding
This app acts as an OBD2 scanner, providing diagnostics, live data, and ECU coding for your vehicle. It helps you understand check engine lights, clear codes, monitor engine performance, and access hidden car features. Supports ELM327 adapters and offers AI-powered repair assistance.
- OBD2 diagnostics and fault code clearing
- AI repair assistant for code explanations
- Live engine data with customizable gauges
- ECU coding and access to hidden features
- Apple CarPlay and Siri integration
- Vehicle compatibility checks
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CarCoding is a vehicle fault diagnosis and ECU coding app for ELM327 OBD2 scanners. Read and clear fault codes, view live data, reset service indicators, inspect used vehicles, and unlock hidden features — all in one OBD2 app. Plug in a Bluetooth (BLE) or Wi-Fi adapter, connect to your vehicle's control units in seconds. Find out why the check engine light is on, clear fault codes, watch live data, unlock hidden features. ▸ OBD2 DIAGNOSTICS • FAULT CODE READING AND CLEARING (DTC) Read and clear OBD2 fault codes — standard P-codes plus manufacturer-specific B, C and U codes. Engine, transmission, ABS, airbags and body modules in a single scan. Descriptions in plain language. • AI FAULT ANALYSIS What does "P0420" mean? Built-in AI explains the likely cause, urgency and what to check first — no jargon. • LIVE ENGINE ANALYSIS Measure fuel trim and oxygen sensor response at idle and under load; the app diagnoses vacuum leaks, fuel supply issues and sensor faults from the numbers. • USED CAR CHECK AND INSPECTION READINESS Were fault codes cleared before sale? Permanent fault codes, readiness monitors and distance driven since codes were cleared on one screen. Mode 06 tests give early warning before a fault code is set. ▸ LIVE DATA AND GAUGES • DIGITAL GAUGE PANEL Track RPM, coolant temperature, oil temperature, boost pressure, fuel trim and battery voltage in real time. Design your own gauges, record drives, export OBD2 logs. • TRIP COMPUTER AND PERFORMANCE TEST Real-time and average fuel consumption, trip cost, distance and speed summary. Measure 0-100 km/h, quarter-mile and braking tests on closed track. • BATTERY, HYBRID AND DPF HEALTH Check battery health from the voltage drop while cranking. Battery status on hybrids and EVs; DPF differential pressure, regeneration status and AdBlue level on diesels. ▸ SERVICE RESET AND MAINTENANCE • OIL, EPB, DPF, SAS AND TPMS RESET Oil change reset, electric park brake (EPB) service mode, DPF regeneration, steering angle sensor (SAS) calibration and TPMS reset — with pre-flight RPM and voltage checks. • ACTUATOR TEST AND EXTENDED SENSORS On supported models, start and stop actuators directly from the app. Read vehicle-specific signals: charge percentage, module temperatures, oil life and more beyond standard OBD2. ▸ ECU CODING AND HIDDEN FEATURES • CODING Read and back up ECU coding data, then switch hidden factory features on or off: mirror folding on lock, seatbelt chime, gauge sweep, headlight behavior. Expert Mode offers direct hex/byte access. • BRAND SUPPORT The most complete coding support is on BMW and MINI. Long coding and adaptation on VW, Audi, Skoda, Seat and Cupra; telecoding on Peugeot, Citroën, DS and Opel; module coding on Ford, Fiat, Alfa Romeo, Jeep, Renault and Dacia; reading and analysis on Hyundai, Kia, Toyota and many more brands. Options vary by model. ▸ MORE • MOTORCYCLE AND TRUCK DIAGNOSIS K-line fault diagnosis and live data on motorcycles; active and historical faults plus live values over J1939 on trucks and buses. • REMOTE SUPPORT Open a support session from within the app; our team inspects your vehicle live through your phone. • 32 LANGUAGES Interface, fault code descriptions and coding labels in 32 languages. • COMPATIBILITY All OBD2-compliant vehicles (gasoline 2001+, diesel 2004+); quality ELM327 Bluetooth and Wi-Fi adapters. ▪ Coding and service resets write data to control modules. CarCoding backs up your data first — keep the ignition on and stay connected during the process. OBD2 scanner, car diagnostic tool and coding tool in one app. Download CarCoding. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://carcoding.app/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: CarCoding at every 2 days against DPF Scan for VAG's every 3 weeks. CarCoding also leads on iOS requirement (15.1 vs 26.0). On price, ads, in-app purchases 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. DPF Scan for VAG sells 2 in-app purchases, starting at $2.99 per month and CarCoding sells 4 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
DPF Scan for VAG ships an update every 3 weeks, CarCoding every 2 days. The most recent releases landed on October 8, 2026 and October 25, 2026 respectively.
| Parameter | DPF Scan for VAG | CarCoding |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 105 MB |
| Age rating | 4+ | 17+ |
| Developer | Garry Cliffe | Mustafa YILMAZ |
In-app purchases
DPF Scan for VAG
- Monthly7 Days trial$2.991 Month
- Yearly7 Days trial$29.991 Year
CarCoding
- CarCoding Pro Monthly$7.991 Month
- CarCoding Pro 6 Months$39.956 Months
- CarCoding Pro Annual$71.901 Year
- CarCoding Pro – Lifetime$71.99
Questions
Is DPF Scan for VAG free?
Is CarCoding free?
Do DPF Scan for VAG or CarCoding have ads?
Which is updated more often, DPF Scan for VAG or CarCoding?
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