# Strobe tachometer (RPM meter) vs True Note

The clearest difference is rating: Strobe tachometer (RPM meter) at 4.3 against True Note's 3.6. Strobe tachometer (RPM meter) also leads on update cadence (every 4 months vs every 10 months) and ratings volume (83 vs 16). True Note's advantage is iOS requirement (10.2 vs 15.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Strobe tachometer (RPM meter) sells 2 one-off in-app purchases and True Note sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Strobe tachometer (RPM meter) holds the better App Store score, 4.3 against 3.6. That said, the two scores are not equally well evidenced: Strobe tachometer (RPM meter) has 83 ratings behind it against 16, so its average is the more settled of the two. Written reviews split almost evenly too, at 69% and 68% positive.

Strobe tachometer (RPM meter) ships an update every 4 months, True Note every 10 months. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Strobe tachometer (RPM meter) | True Note |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (83 ratings)](https://appshunter.io/ios/app/strobe-tachometer-rpm-meter/id831460940/reviews)** | [3.6 (16 ratings)](https://appshunter.io/ios/app/true-note-record-player-test/id1200544741/reviews) |
| Number of ratings | **83** | 16 |
| Positive reviews | **69.0% of reviews** | 68.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 16 MB | 16 MB |
| Requires iOS | 15.6 | **10.2** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmitriy Kharutskiy](https://appshunter.io/developer/817385891) | [James Rhoades](https://appshunter.io/developer/359564371) |

## 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 |


### True Note

[App page](https://appshunter.io/ios/app/true-note-record-player-test/id1200544741)

Check your record player's speed accuracy using your phone's LED light and a printable strobe disc. Ensure your turntable is playing at the correct RPM for optimal audio quality. Useful for calibration and pre-purchase checks.

**Highlights:** Turntable speed testing, Strobe disc calibration, Adjustable speed check, Portable for on-the-go use, Accurate RPM verification

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Huge Tip | $9.99 | one-time |


## Frequently asked questions

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

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

### Is True Note free?

True Note is free to download, with in-app purchases available.

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

Strobe tachometer (RPM meter) is rated higher. Strobe tachometer (RPM meter) averages 4.3 out of 5 from 83 ratings, while True Note averages 3.6 from 16 ratings.

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

Neither Strobe tachometer (RPM meter) nor True Note shows ads.

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

Strobe tachometer (RPM meter) ships an update every 4 months, and True Note every 10 months. Most recently, Strobe tachometer (RPM meter) was updated on September 9, 2026 and True Note on September 23, 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.*