# AERMOTOR vs OBDII Scanner ELM327 OBD2

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.

Both are free to download. OBDII Scanner ELM327 OBD2 sells 1 one-off in-app purchase. AERMOTOR asks for nothing beyond the download.

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.

## The numbers

| Metric | AERMOTOR | OBDII Scanner ELM327 OBD2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.6 (8 ratings)](https://appshunter.io/ios/app/obdii-scanner-elm327-obd2/id6450936937/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 32 MB | 14 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [东海 刘](https://appshunter.io/developer/1643660653) | [paul moore](https://appshunter.io/developer/1655343480) |

## What reviewers say

### AERMOTOR

[App page](https://appshunter.io/ios/app/aermotor/id1659992659)

**Features:** macOS Compatibility

**In-app purchases:** none


### OBDII Scanner ELM327 OBD2

[App page](https://appshunter.io/ios/app/obdii-scanner-elm327-obd2/id6450936937)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UK | $1.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*