# Simple Speedometer + vs Detector Air

The clearest difference is update cadence: Detector Air at every 2 weeks against Simple Speedometer +'s every 3 months. Detector Air also leads on iOS requirement (14.1 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Simple Speedometer + sells 1 one-off in-app purchase and Detector Air sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Simple Speedometer + ships an update every 3 months, Detector Air every 2 weeks. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Simple Speedometer + | Detector Air |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Subscription | — |
| Size | 3 MB | 12 MB |
| Requires iOS | 16.0 | **14.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryan Bush](https://appshunter.io/developer/1569653616) | [晓伟 李](https://appshunter.io/developer/1533261370) |

## What reviewers say

### Simple Speedometer +

[App page](https://appshunter.io/ios/app/simple-speedometer-plus/id1571057568)

This app displays your current speed with a large, clear interface that changes color based on your velocity. It offers customizable units and an accuracy indicator for precise readings.

**Highlights:** Large clear display, Accuracy display, Change units, Color-changing interface, Subscription plans

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free | $0.49 | one-time |


### Detector Air

[App page](https://appshunter.io/ios/app/detector-air-find-my-device/id6474296030)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $3.99 | per 7 days |
| Monthly subscription | $9.99 | per month |
| Yearly subscription | $29.99 | per year |


## Frequently asked questions

### Is Simple Speedometer + free?

Simple Speedometer + is free to download, with in-app purchases available.

### Is Detector Air free?

Detector Air is free to download, with in-app purchases available.

### Do Simple Speedometer + or Detector Air have ads?

Neither Simple Speedometer + nor Detector Air shows ads.

### Which is updated more often, Simple Speedometer + or Detector Air?

Simple Speedometer + ships an update every 3 months, and Detector Air every 2 weeks. Most recently, Simple Speedometer + was updated on October 19, 2026 and Detector Air on October 7, 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.*