# Strobe tachometer (RPM meter) vs Flicker Light

The clearest difference is rating: Flicker Light at 5.0 against Strobe tachometer (RPM meter)'s 4.3. Flicker Light also leads on in-app purchases (none vs 2) and review sentiment (100% vs 69%). Strobe tachometer (RPM meter)'s advantage is update cadence (every 4 months vs every 19 months) and ratings volume (83 vs 5). On price, ads and device support there is nothing between them.

Both are free to download. Strobe tachometer (RPM meter) sells 2 one-off in-app purchases. Flicker Light asks for nothing beyond the download.

Flicker Light holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Strobe tachometer (RPM meter) has 83 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 69% of Strobe tachometer (RPM meter)'s written reviews are positive against 100% of Flicker Light's.

Strobe tachometer (RPM meter) ships an update every 4 months, Flicker Light every 19 months. The most recent releases landed on October 21, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Strobe tachometer (RPM meter) | Flicker Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (83 ratings)](https://appshunter.io/ios/app/strobe-tachometer-rpm-meter/id831460940/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/flicker-light/id1186160850/reviews)** |
| Number of ratings | **83** | 5 |
| Positive reviews | 69.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 19 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 25 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [Ryohei Minowa](https://appshunter.io/developer/1079280080) |

## What reviewers say

### Strobe tachometer (RPM meter)

[App page](https://appshunter.io/ios/app/strobe-tachometer-rpm-meter/id831460940)

Measure rotational speeds of objects using your phone's flashlight, laser, or magnetic sensor. Detect precise RPMs with adjustable flicker frequencies and a wide measurement range. Ideal for analyzing fan speeds, engine RPMs, and more.

**Highlights:** Strobe tachometer function, Laser tachometer mode, Magnetic tachometer mode, Adjustable flicker frequency, RPM and Hz display, High precision measurement

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version of the stroboscopic tachometer | $2.99 | one-time |
| Laser Tachometer and Magnetic | $2.99 | one-time |


### Flicker Light

[App page](https://appshunter.io/ios/app/flicker-light/id1186160850)

This app simulates natural light patterns on your screen, mimicking the calming effect of 1/f fluctuations found in nature. It can be used as a gentle light source, with customizable settings and an automatic shut-off timer to conserve battery. The app also allows you to adjust the light's intensity and color.

**Highlights:** Reproduces natural flame sparkle (1/f fluctuation), Maximizes screen brightness, Adjustable fluctuation strength and speed, Hides buttons for a clean display, Automatic turn-off timer, Selectable light colors

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Strobe tachometer (RPM meter) free?

Strobe tachometer (RPM meter) is free to download, with in-app purchases available.

### Is Flicker Light free?

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

### Which has better reviews, Strobe tachometer (RPM meter) or Flicker Light?

Flicker Light is rated higher. Strobe tachometer (RPM meter) averages 4.3 out of 5 from 83 ratings, while Flicker Light averages 5.0 from 5 ratings.

### Do Strobe tachometer (RPM meter) or Flicker Light have ads?

Neither Strobe tachometer (RPM meter) nor Flicker Light shows ads.

### Which is updated more often, Strobe tachometer (RPM meter) or Flicker Light?

Strobe tachometer (RPM meter) ships an update every 4 months, and Flicker Light every 19 months. Most recently, Strobe tachometer (RPM meter) was updated on October 21, 2026 and Flicker Light on October 6, 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.*