
SUS4 Capo Calc: Find the Fret
Your key, easy chord shapes
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Free
In-App Purchases
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About
Pick the key you want to sing in and see which fret the capo goes on and which shapes to play.
It also works the other way: type the chords and it finds the key.
Fully on-device: no cloud, no account.
Choose your tuning, choose the target key, and Capo Calc lists the options with the fret and the shapes, with open-friendly shapes first if you want them. Change the tuning to drop D, DADGAD or open G and the answer changes with it.
• Capo position and chord shapes for any target key
• Find Key: type a progression and get its key
• Standard, dropped, open and modal tunings, and 7 and 8-string guitars
• Fretboard diagrams for each suggestion
For singers moving songs into their range, worship guitarists following a key sheet, and guitarists playing with a second guitar.
Everyone gets two calculations a day. Pro, or SUS4 All-Access across the whole range, removes the daily limit.
Made in the UK by working musicians.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in SUS4 Capo Calc
1.3.0
October 30, 2026
A capo quiz: name the fret for a key, or the key for a fret, against the clock, over five levels.
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Subscriptions & In-App Purchases
SUS4 All-Access
Pro in every SUS4 app, billed monthly.
$5.991 Month
7 Days trial







