Comparison

Capo Helper vs SUS4 Capo Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Capo Helper

Instantly translate chords for any capo position, helping musicians play along with guitarists using capos. It can also suggest capo placements and chord shapes based on a song's key.

Highlights
  • Instant chord translation for any capo position
  • Translates in both directions (capo to sounding, key to capo)
  • Handles complex and real chords
  • Suggests optimal capo positions for song keys
  • Displays chord fingerings with capo
  • Stage mode with high contrast and screen lock
Features
Read full description

Put a capo on the third fret, play a G shape, and what everyone hears is a Bb. If the bass player or the keyboard player wants to play along, someone has to work that out. Capo Helper does it for you. Set the fret the capo is on and every chord is translated instantly, so the rest of the band knows what's actually sounding and the guitar player can use their capo as much as they want. It works the other way round too. Tell it what key the song is in and it will show you where to put the capo and which shapes to play. WHAT IT DOES • Translates every chord for any capo position, in both directions • Handles real chords — Am7, Csus4, F#m7b5, D/F# — not just root notes • Spells them correctly for the key: Bb in flat keys, A# in sharp keys • Finds the best capo position for a song's key, ranked by which frets give you open chords • Shows you how to actually play each chord with the capo where it is • Stage mode: oversized, high contrast, and the screen stays awake on a music stand CAPO HELPER PRO One purchase. No subscription. • Every alternate fingering for a chord, up and down the neck • Alternate tunings — Eb standard, Drop D, DADGAD, Open G and Open D • Partial capos, where each string can sit at its own fret • Bb, Eb and F transpositions for horns, plus a harmonica position finder • Nashville numbers No ads. No tracking. No account. No internet connection needed — all of it works offline. Bought Capo Helper years ago, when it cost a dollar? Tap Restore and Pro is yours. You already paid for it.

About

SUS4 Capo Calc

Features
Read full description

Where does the capo go? Right here. 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/

Screenshots

Capo Helper4 screens
SUS4 Capo Calc4 screens

Verdict

The call

The clearest difference is update cadence: SUS4 Capo Calc at fortnightly against Capo Helper's every 12 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Capo Helper sells 1 one-off in-app purchase and SUS4 Capo Calc sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Capo Helper ships an update every 12 months, SUS4 Capo Calc fortnightly. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

Scorecard1 real difference · 9 level
Capo Helper versus SUS4 Capo Calc: the parameters behind the verdict, then further details
ParameterCapo HelperSUS4 Capo Calc
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.0 — better16.0
Further details — not scored
Size19 MB20 MB
Age rating4+4+
DeveloperYsAppsThePaulSmith

In-app purchases

1 purchases

Capo Helper

One-time1
  • Capo Helper Pro$5.99
3 purchases

SUS4 Capo Calc

Subscriptions2
  • SUS4 Capo Calc Pro Monthly7 Days trial$0.991 Month
  • SUS4 All-Access7 Days trial$4.991 Month
One-time1
  • SUS4 Capo Calc Lifetime$59.99

Questions

Is Capo Helper free?
Capo Helper is free to download, with in-app purchases available.
Is SUS4 Capo Calc free?
SUS4 Capo Calc is free to download, with in-app purchases available.
Do Capo Helper or SUS4 Capo Calc have ads?
Neither Capo Helper nor SUS4 Capo Calc shows ads.
Which is updated more often, Capo Helper or SUS4 Capo Calc?
Capo Helper ships an update every 12 months, and SUS4 Capo Calc fortnightly. Most recently, Capo Helper was updated on October 17, 2026 and SUS4 Capo Calc on October 6, 2026.

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