# Whirlometer — Turntable RPM

> Measures turntable RPM using video, magnetometer, and audio analysis. (iPhone/iPad app by Incandescent Core, LLC.)

- Source: https://appshunter.io/ios/app/whirlometer/id1478518608 (this page in markdown: same URL + `.md`)
- Developer: [Incandescent Core, LLC](https://appshunter.io/developer/317577316)
- Category: Utilities, Music
- Price: Free (on sale, was $0.49)
- Rating: 4.84/5 from 95 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 8 MB
- Languages: English
- Released: 2019-09-19
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/whirlometer/id1478518608/reviews.md

## What is Whirlometer?

Quickly Measure Turntable RPM
  *  Accurate To ~0.1 RPM Or Better 
  *  Manual Or Auto Video Analysis
  *  Magnetometer Analysis
  *  Audio Analysis

## Key features

- Turntable RPM measurement
- Accurate to 0.1 RPM
- Manual video analysis
- Auto video analysis
- Magnetometer analysis
- Audio analysis

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/whirlometer/id1478518608/reviews.md

### 5/5 — Impressive App

*2025-03-15*

Wow! I’m very impressed with this app. I’m not a fan of apps that require you to place your phone on the actual vinyl record. It seems to me the weight of the phone would result in an inaccurate reading. The Whirlometer app is great because there are three different ways to measure the RPMs. My favorite is using a small magnet on the label part of the record and enable the magnetometer setting. One benefit is there is no subscription fee like many other apps. I tested the accuracy of the app by placing a piece of blue painter’s tape on the side of the turntable platform and counted the number of revelations for 3 minutes which should be 99.99 rpm’s. Get this app! You won’t be disappointed!

### 5/5 — Though

*2025-02-08*

I do not own any turntable now I thank you and appreciate your work in making this app. You broaden my knowledge (what  a magnet can integrate with the app). Most importantly no tracking. Just wondering if this app can be used to check rpm in other fields. (Say car engine).

### 5/5 — Just WOW.

*2021-08-15*

What a clever way to measure the speed. Much better than the gyroscope apps. Gold medal deserved!

### 3/5 — AYUDA!

*2021-05-10*

Últimamente esta fallando! La velocidad es correcta y la marca como incorrecta, el modo auto no es tan preciso como el manual

**Developer response:** Lamento que tengas problemas con la aplicación. Comuníquese con nosotros en support@incandescentcore.com para que podamos comprender mejor el problema.

### 5/5 — Saves my LP experience

*2021-03-05*

I thought my Audio Texhnica LP60 was running a bit fast but it doesn’t have a strobe meter to check. This no frills app is pretty simple to use and verified that it was running too fast on 33 and 45RPM. After lots of tweaking with a screwdriver underneath the turntable, I checked with the app and against streaming versions of songs and I got it at the right speed. Hopefully I won’t need to check again for a long time. Well done, developers.

### 5/5 — It works

*2021-01-26*

I tested this against a fancy strobe&disc combo. This worked perfectly and yeilded the same result. But without the extra hardware. Nice.

### 5/5 — Very useful !

*2020-11-22*

Took a little bit to figure out how it works. But found my table was a wee fast. I could hear it was off when I tried to play guitar along with a record. 
 It said it was 33.7 rpm’s . After adjustment and checking with this app , it now says 33.3 rpms. And it does sound in tune with my guitar now. Great !

### 5/5 — Shockingly effective

*2020-06-21*

I took a chance on this app because I could hear that my records were off pitch. It took some getting used to how it works, but my records sound the way they should. Thanks to the developer!

### 5/5 — Easy to use and very accurate

*2020-04-30*

I was going nuts using a digital recording as a reference with no avail. Thanks to this smart app the paper on my TT is perfectly tuned.

### 5/5 — Thank you! Thank you!

*2020-04-24*

I was so surprised at how accurate this was. I’d normally use other apps that require putting your phone on the plate, but those usually cost money or scam you with in-app purchases. I’m go glad this app was free! I was able to get my player spinning at exactly 33.3 rpm, and I was also able to adjust my 45 rpm setting!

## Frequently asked questions about Whirlometer

### What does Whirlometer do?

Whirlometer is a utility app designed to quickly and accurately measure the rotational speed (RPM) of your turntable. It provides precise readings, often to within 0.1 RPM or better, ensuring your vinyl playback is at the correct speed.

### What analysis methods does the app use?

The app offers multiple analysis methods for measuring RPM. These include manual video analysis, automatic video analysis, magnetometer analysis, and audio analysis, providing flexibility and accuracy.

### Is Whirlometer free to use?

Yes, based on the provided information, Whirlometer is a free application. There are no mentions of in-app purchases or advertisements, suggesting a completely free user experience.

### Who is this app for?

This app is ideal for anyone who owns a turntable and wants to ensure it's spinning at the correct speed. This includes vinyl collectors, audiophiles, and anyone interested in maintaining optimal sound quality from their records.

## Version history (last 5 releases)

### 1.5.2 — 2024-07-06

* Audio Analysis
* Frame Selection Merged View (Manual Video Analysis)

### 1.5.1 — 2024-05-22

* Bug fixes

### 1.5.0 — 2023-12-14

* Magnetometer Analysis

### 1.04 — 2021-04-20

* Automatic RPM Detection (Settings->Analysis->Auto)

### 1.03 — 2020-02-24

* Added Support For 78s

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## More apps by Incandescent Core, LLC

- [100 Yay!](https://appshunter.io/ios/app/100-yay/id797742352)
- [Sight Reading Rampage](https://appshunter.io/ios/app/sight-reading-rampage/id1357179442)
- [Piano Hills](https://appshunter.io/ios/app/piano-hills/id1455529939)
- [Phenometurn](https://appshunter.io/ios/app/phenometurn/id1602992178)
- [Dosdoku](https://appshunter.io/ios/app/dosdoku/id6477334766)

All apps by Incandescent Core, LLC: https://appshunter.io/developer/317577316

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*