CarCoding vs CanDash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
CanDash
Access detailed diagnostics and live vehicle data from any module in your car, including ABS and airbags. Choose from multiple gauge cluster styles or customize your own dashboard for real-time performance tracking and fault code management. Offers a one-time purchase for all features and updates.
- Full-system diagnostics (ABS, airbag, etc.)
- Live gauge clusters and customizable dashboard
- Read and clear fault codes
- Performance timing (0-60, quarter-mile)
- Service light reset guides
- Real-time fuel economy tracking
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Read every module in supported cars — ABS, airbag, body control, engine — then watch it live on eight handcrafted gauge clusters. One-time unlock. No subscription. No tracking. Every new cluster, vehicle pack and feature arrives as a free update. Eight cluster styles from 1950s analogue to modern race-digital, plus a fully customisable dashboard — choose your look, customise every gauge, then take a peek under the bonnet. — DIAGNOSTICS — CanDash reads and clears diagnostic fault codes from your vehicle. On any OBD-II car you get SAE engine and emissions diagnostics. On supported platforms, CanDash unlocks full-system scanning across every control module — ABS, airbag, body control, climate and more: - BMW — All F-chassis and G-chassis models (CAN-equipped models only, E-chassis coming soon) - Peugeot, Citroën & DS — 2013 onwards (CAN-equipped models only) - Ford — 2011 onwards (MS-CAN modules scanned via OBDLink MX+ adapter only) - Jaguar — 2007–2024 (MS-CAN modules scanned via OBDLink MX+ adapter only) - VAG Group — 2013–2023 (CAN-equipped models only) Standard OBD-II diagnostics — on every vehicle: - Read, understand and clear engine and emissions fault codes (stored, pending and permanent) - Plain-English descriptions for 800+ standard fault codes - Check-engine light status and emissions readiness — handy before an MOT or smog test — GAUGE CLUSTERS — - Street — clean modern enthusiast dials - Race — brushed metal and red glow, supercar-inspired - Mille Miglia — 1950s road racing, warm copper and chrome - Stuttgart — German sports car heritage - Swiss — haute-horlogerie precision with gold needles - 90s Retro — amber-on-black retro aesthetic - Digital — modern race-digital display - 80s Nostalgia — 80s hot-hatch cluster - Plus a fully customisable Dashboard — PERFORMANCE — - 0–60, quarter-mile and more timing options - Live G-Meter with cornering and braking traces - GPS or OBD-based speed measurements - Record up to 4 gauges per run - Full history playback of your runs, including recorded gauges - Trip data logging with CSV export - Lap timer — full GPS lap timing with live track maps, video overlay and 13 UK circuits built in. more to come! — PRACTICAL — - Service light reset guides for 80+ vehicles - Service interval tracker with full VIN tracking and exporting options - Real-time fuel economy with trip averaging - Fuel cost calculator - Custom PID support for advanced users - Metric or imperial: °C/°F, psi/bar/kPa, mph/km/h, MPG (UK or US) or L/100km — set from your region automatically, or change any unit yourself. — SUPPORTED ADAPTERS — CanDash works with any OBD-II adapter that supports the ELM327 and STN protocols: - OBDLink MX+ (Bluetooth Classic, MFi-certified) — recommended - OBDLink CX (Bluetooth Low Energy) - Veepeak OBDCheck BLE - Other ELM327 BLE adapters — VEHICLE-SPECIFIC PACKS — CanDash bundles manufacturer-specific PID libraries that add extra gauges and live readings to your clusters, dashboard and data logging. Available libraries currently include: - Jaguar Land Rover (AJ133 engine family) - Ford - Volkswagen Group MQB platform - Porsche - BMW And more! These libraries provide extra live signals, but they are not a guarantee that every PID will work on every car of the marque. Some PIDs are engine, model or year-specific. — PRIVACY — CanDash does not collect any personal data. Your VIN never leaves your phone. There are no analytics, no telemetry, no ad networks, no third-party SDKs. CanDash works fully offline once installed. — REQUIRES — - iPhone running iOS 18.6 or later - iPad running iPadOS 18.6 or later - Any OBD-II adapter (sold separately) - A vehicle built 1996 or later with an OBD-II port Every cluster, every gauge and every line of code is hand-crafted for your enjoyment!
Screenshots
Verdict
The clearest difference is rating: CanDash at 4.0 against CarCoding's 1.0. CanDash also leads on ratings volume (3 vs 1). CarCoding's advantage is update cadence (every 2 days vs every 2 weeks) and monetization model (freemium vs paid). On price, review sentiment, ads and in-app purchases 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. CarCoding sells 4 in-app purchases, starting at $7.99 per month and CanDash sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CanDash holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
CarCoding ships an update every 2 days, CanDash every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.
| Parameter | CarCoding | CanDash |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 105 MB | 165 MB |
| Age rating | 17+ | 4+ |
| Developer | Mustafa YILMAZ | SALVATORE MAURIZIO MIRABILE |
Customer experience
CarCoding
CanDash
In-app purchases
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
CanDash
- CanDash Pro$6.99







