# Strobe tachometer (RPM meter) vs PreorderPal

The clearest difference is rating: PreorderPal at 5.0 against Strobe tachometer (RPM meter)'s 4.3. PreorderPal also leads on in-app purchases (none vs 2) and review sentiment (100% vs 69%). Strobe tachometer (RPM meter)'s advantage is ratings volume (83 vs 2) and update cadence (every 4 months vs every 8 months). 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. PreorderPal asks for nothing beyond the download.

PreorderPal 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 2, 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 PreorderPal's.

Strobe tachometer (RPM meter) ships an update every 4 months, PreorderPal every 8 months. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Strobe tachometer (RPM meter) | PreorderPal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (83 ratings)](https://appshunter.io/ios/app/strobe-tachometer-rpm-meter/id831460940/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/preorderpal/id1516428540/reviews)** |
| Number of ratings | **83** | 2 |
| Positive reviews | 69.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 50 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [David Newton](https://appshunter.io/developer/1516428539) |

## 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 |


### PreorderPal

[App page](https://appshunter.io/ios/app/preorderpal/id1516428540)

Stay updated on upcoming video game releases across multiple platforms including PC, Switch, Xbox, and PlayStation. Organize your desired games into a wishlist and discover new titles with detailed summaries, ratings, and media.

**Highlights:** Upcoming game release dates, Multi-platform support, Customizable wishlist, Game discovery tools, Release date updates, Game summaries and ratings

**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 PreorderPal free?

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

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

PreorderPal is rated higher. Strobe tachometer (RPM meter) averages 4.3 out of 5 from 83 ratings, while PreorderPal averages 5.0 from 2 ratings.

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

Neither Strobe tachometer (RPM meter) nor PreorderPal shows ads.

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

Strobe tachometer (RPM meter) ships an update every 4 months, and PreorderPal every 8 months. Most recently, Strobe tachometer (RPM meter) was updated on October 21, 2026 and PreorderPal on October 20, 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.*