SUS4 Capo Calc: Transpose
Shift a song to any key
Free · In-App Purchases
The singer wants it in G and you only know it with E shapes. Capo 3, the shapes you already know, and the whole band is in the singer's key.
Where does the capo go? Right here.
A capo calculator that transposes any song into the key that suits the singer.
Works with open and drop tunings and shows the chord shapes to play at that fret.
You know a song in E but you want to sing it in G. Or your guitarist buddy plays it with a capo on the second fret and you need to know what key that actually makes it. SUS4 Capo Calc works it out instantly — pick your open key, pick your target key, and the app tells you which fret to put the capo on and what chord shapes to use.
When you change your tuning — say, drop D or open G — the calculation updates to account for the new open string pitches. Useful for anyone who transposes songs to suit their voice or who works with multiple guitarists in different keys.
• Capo position calculator: from key to fret in one tap
• Shows equivalent chord shapes for the capo position
• Updates automatically when tuning changes
• Works for standard and common alternate tunings
• 2 free calculations/day — unlock unlimited with a subscription
Runs fully on-device. No internet connection needed.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
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Stability and performance improvements.
The developer, ThePaulSmith, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Paul Smith
- Size
- 21.8 MB
- Category
- Music
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SUS4 Capo Calc Lifetime £59.99
- SUS4 All-Access £4.99
- SUS4 Capo Calc Pro Monthly £0.99
- Copyright
- © 2026 4chords Studios