Comparison

Car Scanner OBD2 ELM vs ECUconnect

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

Head to head
About

Car Scanner OBD2 ELM

This app functions as a universal vehicle scanner using the OBD2 standard. It connects to your car via WiFi or Bluetooth 4.0 LE adapters to diagnose and scan electronic control modules. Users need a compatible ELM327 adapter to utilize its diagnostic capabilities.

Highlights
  • Universal OBD2 scanning
  • Works with WiFi adapters
  • Works with Bluetooth 4.0 LE adapters
  • Diagnose electronic control modules (ECUs)
  • Quick start guide for ELM327 adapters
Features
Read full description

Obd Mary is a universal vehicle scanner which works according to OBD2 standard. The application works with WiFi and Bluetooth 4.0 LE adapters. Requirements: 1. You need ELM327 Bluetooth 4.0 LE or Wi-Fi adapter to connect to a vehicle using this application. 2. Your vehicle can contain some ECUs (electronic control modules), so don't forget to check all ECUs. 3. ELM adapters version 2.1 are often can be corrupted, so try to choose version 1.5 if you have a chose. Quick start guide for ELM327 adapters: 1. Download the app 2. Plug in ELM327 adapter into 16-pin diagnostic connector in your vehicle 3. Switch ON the ignition 4. Discover your WiFi or Bluetooth ELM adapter in the app settings 5. Select discovered ELM327 adapter and press 'Connect' You can make scanning and diagnosing using the application Obd Mary and Wi-Fi ELM327/BLE ELM327. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ECUconnect

Read full description

With ECUconnect, you can manage the firmware of your TPE ECUconnect OBD2 adapter and carry out various maintenance duties.

Screenshots

Car Scanner OBD2 ELM4 screens
ECUconnect1 screens

Verdict

The call

The clearest difference is in-app purchases: ECUconnect at none against Car Scanner OBD2 ELM's 4. ECUconnect also leads on ads (none vs shown). Car Scanner OBD2 ELM's advantage is update cadence (fortnightly vs every 5 months) and iOS requirement (15.0 vs 18.2). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Car Scanner OBD2 ELM sells 4 in-app purchases, starting at $2.99 per 7 days. ECUconnect asks for nothing beyond the download.

UpkeepUpdate frequency

Car Scanner OBD2 ELM ships an update fortnightly, ECUconnect every 5 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Car Scanner OBD2 ELM versus ECUconnect: the parameters behind the verdict, then further details
ParameterCar Scanner OBD2 ELMECUconnect
PriceFreeFree
Rating4.7 (39 ratings) — better—
Positive reviews92.3% of reviews—
Number of ratings39 — better—
Update frequencyFortnightly — betterEvery 5 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better18.2
Further details — not scored
Size21 MB13 MB
Age rating4+4+
DeveloperIhar KatkavetsTPE Europe GmbH

In-app purchases

4 purchases

Car Scanner OBD2 ELM

Subscriptions3
  • Premium Weekly3 Days trial$2.997 Days
  • Premium Monthly3 Days trial$7.991 Month
  • Premium Yearly7 Days trial$29.991 Year
One-time1
  • Full Edition$9.99
None

ECUconnect

No in-app purchases

Questions

Is Car Scanner OBD2 ELM free?
Car Scanner OBD2 ELM is free to download, with in-app purchases available.
Is ECUconnect free?
ECUconnect is free to download, with no in-app purchases.
Do Car Scanner OBD2 ELM or ECUconnect have ads?
Car Scanner OBD2 ELM shows ads; ECUconnect does not.
Which is updated more often, Car Scanner OBD2 ELM or ECUconnect?
Car Scanner OBD2 ELM ships an update fortnightly, and ECUconnect every 5 months. Most recently, Car Scanner OBD2 ELM was updated on November 2, 2026 and ECUconnect on November 4, 2026.

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