Comparison

AERMOTOR vs OBDII Scanner ELM327 OBD2

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

Head to head

OBDII Scanner ELM327 OBD2

OBD2 Scanner and Trouble codes

Free

🔧 Utilities

★ 3.68 ratingsView app →

About

AERMOTOR

Features

Read full description

this apliaction is a tools,Detect battery voltage, current, resistance, remaining power

About

OBDII Scanner ELM327 OBD2

This app allows you to scan your car's trouble codes and view live data using an OBD2 Bluetooth adapter. It logs statistics and freeze frames for future reference, storing all diagnostic trouble codes (DTCs) on a server.

Highlights

Scan car trouble codes
View live data
Log live statistics
Log freeze frame data
Store DTCs on server
Bluetooth and WiFi support

Features

Read full description

This OBD2 Bluetooth Scanner free. NEW FEATURES... Log your live statistics and save for future. Log your Freeze frame and save for future. Your live and monitoring data will be like a screenshot of all the data names and values. OBD2 Diagnostics scanner with Bluetooth and wifi support. This Scanner Provides unrestricted access to your car trouble codes and live data. This OBDII scanner is supported by Bluetooth 4.0 and wifi ELM327 adapters. Store all your DTC's inside the app. DTC Codes are never deleted in app, they are stored on a data server. These codes will be stored and available as long as the app is on app store. PLEASE NOTE : Bluetooth device and Internet access is required to store codes and lookup DTC's The will be stored for as long as app is on app store. no limit on how many dtc's stored in our database. NOTICE : Under no circumstances will the developer of this application be held responsible for incidents resulting from the use and/or interpretation of the data in the application.

Screenshots

AERMOTOR4 screens

OBDII Scanner ELM327 OBD24 screens

Verdict

The call

The clearest difference is in-app purchases: AERMOTOR at none against OBDII Scanner ELM327 OBD2's 1. AERMOTOR also leads on iOS requirement (9.0 vs 12.0). OBDII Scanner ELM327 OBD2's advantage is update cadence (every 2 days vs every 5 weeks). On price, ads 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. OBDII Scanner ELM327 OBD2 sells 1 one-off in-app purchase. AERMOTOR asks for nothing beyond the download.

UpkeepUpdate frequency

AERMOTOR ships an update every 5 weeks, OBDII Scanner ELM327 OBD2 every 2 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level

AERMOTOR versus OBDII Scanner ELM327 OBD2: the parameters behind the verdict, then further details
Parameter	AERMOTOR	OBDII Scanner ELM327 OBD2
Price	Free	Free
Rating	—	3.6 (8 ratings) — better
Number of ratings	—	8 — better
Update frequency	Every 5 weeks	Every 2 days — better
Ads	No	No
In-app purchases	No — better	Yes
Monetization	—	Free with in-app purchases
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	9.0 — better	12.0
Further details — not scored
Size	32 MB	14 MB
Age rating	4+	17+
Developer	东海刘	paul moore

In-app purchases

None

AERMOTOR

No in-app purchases

1 purchases

OBDII Scanner ELM327 OBD2

One-time1

UK$1.99

Questions

Is AERMOTOR free?

AERMOTOR is free to download, with no in-app purchases.

Is OBDII Scanner ELM327 OBD2 free?

OBDII Scanner ELM327 OBD2 is free to download, with in-app purchases available.

Do AERMOTOR or OBDII Scanner ELM327 OBD2 have ads?

Neither AERMOTOR nor OBDII Scanner ELM327 OBD2 shows ads.

Which is updated more often, AERMOTOR or OBDII Scanner ELM327 OBD2?

AERMOTOR ships an update every 5 weeks, and OBDII Scanner ELM327 OBD2 every 2 days. Most recently, AERMOTOR was updated on October 27, 2026 and OBDII Scanner ELM327 OBD2 on October 24, 2026.