# Strobr Scope vs Camera RPM Meter

The clearest difference is rating: Strobr Scope at 3.7 against Camera RPM Meter's 2.3. Strobr Scope also leads on in-app purchases (none vs 1) and ads (none vs shown). Camera RPM Meter's advantage is update cadence (every 3 weeks vs every 12 months) and ratings volume (33 vs 3). On price and device support there is nothing between them.

Both are free to download. Camera RPM Meter sells 1 one-off in-app purchase. Strobr Scope asks for nothing beyond the download.

Strobr Scope holds the better App Store score, 3.7 against 2.3. That said, the two scores are not equally well evidenced: Camera RPM Meter has 33 ratings behind it against 3, so its average is the more settled of the two.

Strobr Scope ships an update every 12 months, Camera RPM Meter every 3 weeks. The most recent releases landed on September 28, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Strobr Scope | Camera RPM Meter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/strobr-scope/id1330331187/reviews)** | [2.3 (33 ratings)](https://appshunter.io/ios/app/camera-rpm-meter-strobelight/id1583247436/reviews) |
| Number of ratings | 3 | **33** |
| Positive reviews | — | 15.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 14 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Zhang](https://appshunter.io/developer/1418087801) | [Ihsan Ullah](https://appshunter.io/developer/1488089071) |

## What reviewers say

### Strobr Scope

[App page](https://appshunter.io/ios/app/strobr-scope/id1330331187)

This utility app uses your device's camera to measure the frequencies of various cycles, including rotational speeds and electrical light frequencies. It offers a more convenient and less distracting alternative to traditional stroboscopes, capable of measuring even very slow rotations.

**Highlights:** Camera-based stroboscope, Measures rotational frequencies, Measures electrical light frequencies, Measures slow rotations, Continuously variable frame rates, Convenient and less distracting

**Features:** macOS Compatibility

**In-app purchases:** none


### Camera RPM Meter

[App page](https://appshunter.io/ios/app/camera-rpm-meter-strobelight/id1583247436)

Measure rotational speed using your phone's camera or a simulated strobe light. Simply mark the rotating object and adjust the settings until it appears stationary to get an accurate RPM reading. The app also functions as a torchlight.

**Highlights:** Measure RPM with mobile camera, Measure RPM with strobe light simulation, Adjust RPM with seek bar or buttons, Torchlight functionality, Offline use, Compact app size

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Un Lock All Features | $3.99 | one-time |


## Frequently asked questions

### Is Strobr Scope free?

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

### Is Camera RPM Meter free?

Camera RPM Meter is free to download, with in-app purchases available.

### Which has better reviews, Strobr Scope or Camera RPM Meter?

Strobr Scope is rated higher. Strobr Scope averages 3.7 out of 5 from 3 ratings, while Camera RPM Meter averages 2.3 from 33 ratings.

### Do Strobr Scope or Camera RPM Meter have ads?

Camera RPM Meter shows ads; Strobr Scope does not.

### Which is updated more often, Strobr Scope or Camera RPM Meter?

Strobr Scope ships an update every 12 months, and Camera RPM Meter every 3 weeks. Most recently, Strobr Scope was updated on September 28, 2026 and Camera RPM Meter on September 29, 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.*