# OBD2 Scanner + Engine Sound vs Control Pro

The clearest difference is in-app purchases: Control Pro at none against OBD2 Scanner + Engine Sound's 2. Control Pro also leads on ads (none vs shown) and update cadence (daily vs every 9 days). On price, device support and iOS requirement there is nothing between them.

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

OBD2 Scanner + Engine Sound ships an update every 9 days, Control Pro daily. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | OBD2 Scanner + Engine Sound | Control Pro |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 5 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sena Takasawa](https://appshunter.io/developer/1887478690) | [Official Vishwateja](https://appshunter.io/developer/1848761157) |

## What reviewers say

### 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 |


### Control Pro

[App page](https://appshunter.io/ios/app/control-pro-desktop-remote/id6792541452)

**In-app purchases:** none


## Frequently asked questions

### Is OBD2 Scanner + Engine Sound free?

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

### Is Control Pro free?

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

### Do OBD2 Scanner + Engine Sound or Control Pro have ads?

OBD2 Scanner + Engine Sound shows ads; Control Pro does not.

### Which is updated more often, OBD2 Scanner + Engine Sound or Control Pro?

OBD2 Scanner + Engine Sound ships an update every 9 days, and Control Pro daily. Most recently, OBD2 Scanner + Engine Sound was updated on October 25, 2026 and Control Pro on October 10, 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.*