# Auto Proximity Detection vs Video tachometer

The clearest difference is review sentiment: Video tachometer at 85% against Auto Proximity Detection's 0%. Video tachometer also leads on rating (4.6 vs 1.0) and ratings volume (84 vs 2). Auto Proximity Detection's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Video tachometer sells 1 one-off in-app purchase. Auto Proximity Detection asks for nothing beyond the download.

Video tachometer holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Video tachometer has 84 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Auto Proximity Detection's written reviews are positive against 85% of Video tachometer's.

Auto Proximity Detection ships an update every 2 months, Video tachometer every 3 months. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Auto Proximity Detection | Video tachometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/auto-proximity-detection/id909858532/reviews) | **[4.6 (84 ratings)](https://appshunter.io/ios/app/video-tachometer/id1492583587/reviews)** |
| Number of ratings | 2 | **84** |
| Positive reviews | 0.0% of reviews | **84.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 5 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [方 沈](https://appshunter.io/developer/882296318) | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) |

## What reviewers say

### Auto Proximity Detection

[App page](https://appshunter.io/ios/app/auto-proximity-detection/id909858532)

This utility app allows hands-free control of your iPhone using the proximity sensor. Perform actions like taking photos, recording audio/video, or toggling the flashlight by covering the screen, ideal for when you can't interact directly.

**Highlights:** Hands-free photo taking, Audio recording, Video recording, Flashlight toggle, Voice-reported location, Voice-reported time, Text note dictation, Number counting

**Features:** Vision Pro support

**In-app purchases:** none


### Video tachometer

[App page](https://appshunter.io/ios/app/video-tachometer/id1492583587)

This app uses slow-motion video to create a strobe light effect, allowing you to measure rotational speeds. It records video with detailed information like frame rate and exposure, and offers customizable text overlays.

**Highlights:** Strobe light effect simulation, Rotational speed measurement (RPM/Hz), Slow-motion video recording, Customizable text overlays on video, Adjustable frame rate and exposure, Records 4K video (if supported)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $2.99 | one-time |


## Frequently asked questions

### Is Auto Proximity Detection free?

Auto Proximity Detection is free to download, with no in-app purchases.

### Is Video tachometer free?

Video tachometer is free to download, with in-app purchases available.

### Which has better reviews, Auto Proximity Detection or Video tachometer?

Video tachometer is rated higher. Auto Proximity Detection averages 1.0 out of 5 from 2 ratings, while Video tachometer averages 4.6 from 84 ratings.

### Do Auto Proximity Detection or Video tachometer have ads?

Neither Auto Proximity Detection nor Video tachometer shows ads.

### Which is updated more often, Auto Proximity Detection or Video tachometer?

Auto Proximity Detection ships an update every 2 months, and Video tachometer every 3 months. Most recently, Auto Proximity Detection was updated on September 20, 2026 and Video tachometer on September 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.*