Comparison

Capo Helper vs KeyMorph

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

KeyMorph

Features
Read full description

KeyMorph is the ultimate practice companion for anyone playing a transposing instrument. With a full‑sized, touch‑responsive piano keyboard and a simple dropdown menu, you can choose an available instrument and immediately see the adjusted note names rendered atop each key—no mental math required. KeyMorph helps you: Visualize transposition in real time, so you always know which piano key corresponds to your instrument’s written pitch. Switch instruments effortlessly—great for multi‑instrumentalists or band directors working with different sections. Build confidence by practicing scales, chords, and melodies in their concert‑pitch form while seeing exactly what to play on your instrument. Ideal for students, educators, and professionals alike, KeyMorph makes learning and performing transposed music intuitive, accurate, and fun. Instruments Supported: Piano Violin Oboe Alto Saxophone Soprano Saxophone Tenor Saxophone Baritone Saxophone Trumpet French Horn Clarinet More instruments to come!

Screenshots

Capo Helper4 screens
KeyMorph4 screens

Verdict

The call

The clearest difference is in-app purchases: KeyMorph at none against Capo Helper's 1. KeyMorph also leads on update cadence (every 3 weeks vs every 12 months). On price, ads, device support and iOS requirement 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. KeyMorph asks for nothing beyond the download.

UpkeepUpdate frequency

Capo Helper ships an update every 12 months, KeyMorph every 3 weeks. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Capo Helper versus KeyMorph: the parameters behind the verdict, then further details
ParameterCapo HelperKeyMorph
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size19 MB31 MB
Age rating4+4+
DeveloperYsAppsOmni Devs

In-app purchases

1 purchases

Capo Helper

One-time1
  • Capo Helper Pro$5.99
None

KeyMorph

No in-app purchases

Questions

Is Capo Helper free?
Capo Helper is free to download, with in-app purchases available.
Is KeyMorph free?
KeyMorph is free to download, with no in-app purchases.
Do Capo Helper or KeyMorph have ads?
Neither Capo Helper nor KeyMorph shows ads.
Which is updated more often, Capo Helper or KeyMorph?
Capo Helper ships an update every 12 months, and KeyMorph every 3 weeks. Most recently, Capo Helper was updated on October 17, 2026 and KeyMorph on October 8, 2026.

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