# OBD SOUND vs Speedmeter ..

The clearest difference is rating: Speedmeter .. at 4.6 against OBD SOUND's 2.6. Speedmeter .. also leads on in-app purchases (none vs 1) and ratings volume (302 vs 39). OBD SOUND's advantage is ads (none vs shown) and iOS requirement (9.0 vs 14.1). On price, update cadence and device support there is nothing between them.

Both are free to download. OBD SOUND sells 1 one-off in-app purchase. Speedmeter .. asks for nothing beyond the download.

Speedmeter .. holds the better App Store score, 4.6 against 2.6. That said, the two scores are not equally well evidenced: Speedmeter .. has 302 ratings behind it against 39, so its average is the more settled of the two. Written reviews point the same way: 31% of OBD SOUND's written reviews are positive against 40% of Speedmeter ..'s.

OBD SOUND ships an update every 2 months, Speedmeter .. every 4 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | OBD SOUND | Speedmeter .. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (39 ratings)](https://appshunter.io/ios/app/obd-sound/id960839379/reviews) | **[4.6 (302 ratings)](https://appshunter.io/ios/app/speedmeter/id1632828052/reviews)** |
| Number of ratings | 39 | **302** |
| Positive reviews | 30.7% of reviews | **40.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 75 MB | 9 MB |
| Requires iOS | **9.0** | 14.1 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 4+ |
| Developer | [artur tagirov](https://appshunter.io/developer/931425259) | [UniCom Technology](https://appshunter.io/developer/1270764210) |

## What reviewers say

### OBD SOUND

[App page](https://appshunter.io/ios/app/obd-sound/id960839379)

Transform your standard car into a sports car with realistic engine sounds. This app uses your Wi-Fi OBD adapter to read ECU data and generate dynamic engine and turbocharger sounds, playable through your car's audio system. A demo mode is available for testing without an adapter.

**Highlights:** Real-time ECU data reading, Customizable engine sounds, Turbocharger sound effects, Demo mode for testing, Wi-Fi OBD adapter integration, Audio output via AUX, Bluetooth, or FM transmitter

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all sounds | $3.99 | one-time |


### Speedmeter ..

[App page](https://appshunter.io/ios/app/speedmeter/id1632828052)

This app functions as a GPS-based speedometer and odometer for your iPhone or iPad. It tracks your speed and distance traveled, offering features like speed limit and camera warnings, weather display, and route mapping.

**Highlights:** GPS Speedometer, Odometer tracking, Speed limit warnings, Speed camera alerts, Weather display, Map tracking, Today Widget and Apple Watch app

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OBD SOUND free?

OBD SOUND is free to download, with in-app purchases available.

### Is Speedmeter .. free?

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

### Which has better reviews, OBD SOUND or Speedmeter ..?

Speedmeter .. is rated higher. OBD SOUND averages 2.6 out of 5 from 39 ratings, while Speedmeter .. averages 4.6 from 302 ratings.

### Do OBD SOUND or Speedmeter .. have ads?

Speedmeter .. shows ads; OBD SOUND does not.

### Which is updated more often, OBD SOUND or Speedmeter ..?

OBD SOUND ships an update every 2 months, and Speedmeter .. every 4 months. Most recently, OBD SOUND was updated on October 24, 2026 and Speedmeter .. on October 21, 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.*