# Video tachometer vs OPTICHECK Level Mobile

The clearest difference is in-app purchases: OPTICHECK Level Mobile at none against Video tachometer's 1. OPTICHECK Level Mobile also leads on iOS requirement (11.0 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. OPTICHECK Level Mobile asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 13, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Video tachometer | OPTICHECK Level Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (84 ratings)](https://appshunter.io/ios/app/video-tachometer/id1492583587/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 84.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 5 MB | 242 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [KROHNE Messtechnik GmbH](https://appshunter.io/developer/1445655816) |

## What reviewers say

### 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 |

**What reviewers like**

- 👍 Easy to use
- 💡 Clever approach
- 🚀 Works beautifully
- 👍 Very handy
- 👍 Accurate measurements

**What reviewers complain about**

- 💸 Too much in paid version
- 💰 Free version limited
- 🤔 Confusing settings initially
- 👎 Unclear about recording
- 👎 No built-in video recording

**Reported bugs**

- Does not read anything
- Pop-ups for paid features
- Interface visible in screen recording

**Requested features**

- Ability to record video
- Slow phase shift mode
- Improved UI for initial setup
- Long press for gradual increment/decrement


### OPTICHECK Level Mobile

[App page](https://appshunter.io/ios/app/opticheck-level-mobile/id1596750666)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Video tachometer free?

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

### Is OPTICHECK Level Mobile free?

OPTICHECK Level Mobile is free to download, with no in-app purchases.

### Do Video tachometer or OPTICHECK Level Mobile have ads?

Neither Video tachometer nor OPTICHECK Level Mobile shows ads.

### Which is updated more often, Video tachometer or OPTICHECK Level Mobile?

Video tachometer ships an update every 3 months, and OPTICHECK Level Mobile every 3 months. Most recently, Video tachometer was updated on October 13, 2026 and OPTICHECK Level Mobile on October 4, 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.*