Comparison

OpenOBD vs Vondr

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OpenOBD

Transform your iPhone into a real-time car dashboard. Connect an OBD2 adapter to monitor live engine data, track your trips with GPS, and diagnose fault codes with clear explanations. Explore all features in demo mode without hardware.

Highlights
  • Live engine data monitoring
  • Real-time speed, RPM, temperature gauges
  • Trip logging with GPS mapping
  • Read and clear diagnostic trouble codes (DTCs)
  • Vehicle information display
  • Demo mode for exploration
Features
Read full description

OpenOBD turns your iPhone into a real-time car dashboard. Connect any ELM327 OBD2 adapter (Bluetooth or Wi-Fi) and see what your car is really doing — live. LIVE ENGINE DATA • Speed, RPM, coolant temperature, intake, throttle, engine load, battery voltage and more • Clean, fast gauges that update in real time • Instant and average fuel consumption TRIP LOGGING • Automatically record your drives with the GPS route on a map • Keeps recording in the background, even with the screen locked • Review distance, duration, speed and fuel for every trip DIAGNOSTICS • Read and clear fault codes (DTCs) with plain-language explanations • Check-engine (MIL) status and stored trouble codes • Vehicle info: VIN, fuel type, supported sensors BUILT FOR DRIVERS • Beautiful dark interface designed for the car • Works with affordable ELM327 adapters — no subscription, no account TRY IT WITHOUT HARDWARE • Tap Connect, then Demo Mode, to explore every feature with simulated live data OpenOBD is not affiliated with any car manufacturer. An OBD2 adapter (sold separately) is required to read data from your vehicle. Most petrol cars built after 2001 and diesels after 2004 are supported.

About

Vondr

Features
Read full description

Vondr turns your iPhone into a beautiful set of turbo gauges. Plug a Bluetooth or Wi-Fi OBD-II adapter into your car, tap once, and watch live boost sweep across an instrument-cluster display built for sunlight, night drives and quick glances. No protocol menus. No PID spreadsheets. No setup. Vondr finds your adapter, talks to your ECU and starts reading in seconds. GAUGES THAT FEEL FACTORY-FIT • Hero boost gauge with a smooth 60fps needle • Coolant, oil temperature, intake air temperature, RPM and more • Amber and red zones so a warning registers at a glance • Values your car doesn't support grey out honestly — no fake zeros BUILT FOR THE DRIVE • Peak hold to capture your best numbers • Session logging — review your boost traces after the drive • 0–60 and G-force timers using your phone's sensors • Your units, your way: bar or psi, °C or °F WORKS WITH • Bluetooth LE and Wi-Fi ELM327 OBD-II adapters (vGate iCar Pro, Veepeak and most clones) • Petrol turbo cars with standard OBD-II — with hero support for the Ford Focus ST Vondr Pro is a monthly subscription with a 7-day free trial. Payment is charged to your Apple ID account at confirmation of purchase, and the subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel any time in your App Store account settings. Terms of Use (EULA): https://www.web-ly.co.uk/vondr/terms Privacy Policy: https://www.web-ly.co.uk/vondr/privacy

Screenshots

OpenOBD4 screens
Vondr4 screens

Verdict

The call

OpenOBD and Vondr are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
OpenOBD versus Vondr: the parameters behind the verdict, then further details
ParameterOpenOBDVondr
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS16.416.4
Further details — not scored
Size36 MB61 MB
Age rating4+4+
DeveloperOsman CengeriJames Thomas

In-app purchases

None

OpenOBD

No in-app purchases

None

Vondr

No in-app purchases

Questions

Is OpenOBD free?
OpenOBD is free to download, with no in-app purchases.
Is Vondr free?
Vondr is free to download, with no in-app purchases.
Do OpenOBD or Vondr have ads?
Neither OpenOBD nor Vondr shows ads.

Other comparisons