# LookApp QR vs OBD2 Scanner + Engine Sound

The clearest difference is in-app purchases: LookApp QR at none against OBD2 Scanner + Engine Sound's 2. LookApp QR also leads on ads (none vs shown) and device support (3 vs 1). OBD2 Scanner + Engine Sound's advantage is update cadence (every 9 days vs every 3 months). On price there is nothing between them.

Both are free to download. OBD2 Scanner + Engine Sound sells 2 one-off in-app purchases. LookApp QR asks for nothing beyond the download.

LookApp QR ships an update every 3 months, OBD2 Scanner + Engine Sound every 9 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | LookApp QR | OBD2 Scanner + Engine Sound |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/obd2-scanner-plus-engine-sound/id6789023964/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | — | Free with in-app purchases |
| Size | 130 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Fazli Bozkurt](https://appshunter.io/developer/1883475473) | [Sena Takasawa](https://appshunter.io/developer/1887478690) |

## What reviewers say

### LookApp QR

[App page](https://appshunter.io/ios/app/lookapp-qr/id6760252785)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### OBD2 Scanner + Engine Sound

[App page](https://appshunter.io/ios/app/obd2-scanner-plus-engine-sound/id6789023964)

Monitor your car's engine performance and hear its sound in real-time. Customize your dashboard with various widgets and track your drives with detailed maps and trip data. Offers a demo mode and optional Pro features for an enhanced experience.

**Highlights:** Real-time OBD2 data display, Engine sound simulation based on RPM, Customizable dashboard with widgets, Trip computer and fuel economy tracking, Speed and RPM on map view, HUD mode for windshield projection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| car_ui Pro (One-Time) | $4.99 | one-time |


## Frequently asked questions

### Is LookApp QR free?

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

### Is OBD2 Scanner + Engine Sound free?

OBD2 Scanner + Engine Sound is free to download, with in-app purchases available.

### Do LookApp QR or OBD2 Scanner + Engine Sound have ads?

OBD2 Scanner + Engine Sound shows ads; LookApp QR does not.

### Which is updated more often, LookApp QR or OBD2 Scanner + Engine Sound?

LookApp QR ships an update every 3 months, and OBD2 Scanner + Engine Sound every 9 days. Most recently, LookApp QR was updated on October 31, 2026 and OBD2 Scanner + Engine Sound on October 28, 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.*