5ths Machine is made and published by Lucy Hudson. AppBrain is an independent app data site and isn't affiliated with Lucy Hudson. The app name, icon, screenshots and description belong to Lucy Hudson and are shown as published on the App Store.
AppBrain's verdict
- Rating on App Store
- 5.00
- 1 ratings
- Last updated
- January 2, 2026
- Size
- 18.2 MB
It doesn't have enough ratings yet to judge what users think.
User feedback
Ratings and reviews on the App StoreComments on 5ths Machine for iOS
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Store listing
By Lucy Hudson, from the App Store
Description by Lucy Hudson Written by the developer, not by AppBrain. Click to read.
The equal temperament system is a circle with 12 positions, just like a clock. And, just like on a clock, the hands keep going around and around forever. The key signature of 41 sharps is theoretically consistent with the Western diatonic system ― learn why, and learn how to find out what key it is. The Background Information and the Quiz Tips explain the system in detail, and Chronology puts it all in perspective.
Enjoy the “Perpetual 5ths Machine Boogie” while key signatures you’ve never seen before pass by on parade. Then, buckle down and solve the Quiz questions. NOW you understand music theory the 5ths Machine way!
Safety and technology
Found in the app by AppBrain- Price
- $1.99
- App size
- 18.2 MB
- Content rating
- Everyone
Technologies used by 5ths Machine
Releases
Updates seen on the App Store- Version
- 2.0.1
- Launched
- January 2022
No changelog data
Alternatives
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Rankings
App Store top chartsApp Store Rankings for 5ths Machine
About the app and developer
About 5ths Machine
5ths Machine is a music app developed by Lucy Hudson.
What is the rating of 5ths Machine?
5ths Machine is rated 5.00 out of 5 stars, based on one rating ratings.
Is 5ths Machine free?
5ths Machine costs $1.99. The app size is 18.19 MB. The latest version available is 2.0.1. The last update was on January 2, 2026.
What are the requirements for 5ths Machine?
The app has a content rating of Everyone. The app has been available on the App Store since January 2022.
Developer information for Lucy Hudson
Address:
Frequently asked questions about 5ths Machine
Is 5ths Machine free?
No. 5ths Machine costs $1.99 on the App Store.
Is 5ths Machine still available?
Yes. 5ths Machine is on the App Store, and the last update we saw was on January 2, 2026.
How large is 5ths Machine?
5ths Machine is 18.19 MB.
Is 5ths Machine suitable for children?
App Store rates the content of 5ths Machine as suitable for everyone.
How do people rate 5ths Machine?
5ths Machine has one rating of 5.00 stars on the App Store.
Who made 5ths Machine?
5ths Machine was developed by Lucy Hudson. It is listed in the music category on the App Store.
What are the best alternatives to 5ths Machine?
People looking at 5ths Machine also look at these music apps: Temperaments Lite, Audio / Spectrum Analyzer, Functional Ear Trainer, Metronome - reloaded, Music Tutor (Sight-reading).