Comparison

Roll Player Piano vs Solfa Hands

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

Head to head
About

Roll Player Piano

Features
Read full description

Features -Rotating finger gestures on the screen to play music. -The music can be played according to the conducting motion of the index finger captured by the front camera*. -The music can be played accordance to the movement of the rotating circle captured by the rear camera*. -The tempo of the performance can be controlled by the speed of rotation. -The volume of the performance can be controlled by the size of the rotation radius. -You can also play at the volume according to the score. -You can record your performance. -57 different sound sources can be switched. -The equalizer allows independent adjustment of the volume of the low, mid, and high frequencies. -MIDI files can be imported**. -You can enjoy automatic performance. -You can bring multiple iPhones to enjoy ensemble playing. -You can practice ensembles with just one iPhone. -You can play hand-cranked music by reading roll sheet socre with the camera*. -You can play hand-cranked music by reading the rotating circle with the camera*. -You can print roll music score for hand-cranked music box (40mm/70mm width) as PDF file*. -You can print music score for disc-type hand-cranked music boxes as a PDF file*. * In-app purchase ($0.99) will add more functions.  ** In-app purchase ($3.99) will add more functions.

About

Solfa Hands

Features
Read full description

Solfa Hands is a sight-reading and sight-singing trainer for music teachers and their students. Reading a score and singing it in tune are one skill, and Kodály hand signs are what joins them: each sign gives an abstract note on the page a shape your body can feel, so pitch stops being guesswork. Solfa Hands puts the notation, the solfege syllable, and the hand sign on screen together, and keeps them together from your first sol–mi to a full major-scale melody. *SIGHT-READ FROM REAL NOTATION Read from a scrolling five-line staff with note heads, rests and barlines, or switch to circles on a simplified staff or the color grid while the reading habit is still forming. Note labels can show solfege, note names, numbers — or nothing at all, once you're ready to read the staff unaided. A piano keyboard lights up alongside the score so every interval you read has a sound attached. *SIGHT-SING WITH YOUR CAMERA CHECKING YOU — NEW Turn on Assessment and sing the score at sight while the app watches your hand signs. The score waits at each note until your sign is right, then sounds it and moves on — so you can't skim past an interval you haven't actually heard. Feedback is specific: a tucked thumb, a finger that should be curled, a hand held at the wrong angle. Recognition runs entirely on your device; no camera video ever leaves your iPhone or iPad. *A FULL KODÁLY READING SEQUENCE About 200 exercises across six stages, ordered the way sight-singing is actually taught: sol–mi first, then la, do and re to complete the pentatonic set, with fa, ti and high do finishing the major scale. Each stage adds exactly one pitch, then widens the intervals, lengthens the phrases and varies the shape — ascending, descending, arch, echo, sequence, and real tunes — so reading difficulty grows one step at a time. *FOR THE CLASSROOM AND FOR HOME • Three score views: staff notation, circles, or grid • Four label modes, for scaffolding reading and then removing it • Tempo from 50 to 240 BPM with a four-beat count-in • Boy and girl singing voices • Rests, one- and two-beat notes, looping playback • Portrait and landscape, iPhone and iPad • English and Chinese *WRITE YOUR OWN READING DRILLS Build a melody note by note and save it to your library — useful for setting the exact interval a student keeps missing. The library keeps the course path and your own songs side by side as readable score thumbnails; one tap loads any of them. Course stages 1 and 2 are free to play. One purchase unlocks playback for every later stage and for your own songs — no subscription, no ads, no account.

Screenshots

Roll Player Piano1 screens
Solfa Hands4 screens

Verdict

The call

The clearest difference is in-app purchases: Solfa Hands at none against Roll Player Piano's 2. Solfa Hands also leads on iOS requirement (15.6 vs 17.6). On price, update cadence, ads 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. Roll Player Piano sells 2 one-off in-app purchases. Solfa Hands asks for nothing beyond the download.

UpkeepUpdate frequency

Roll Player Piano ships an update every 4 weeks, Solfa Hands every 3 weeks. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
Roll Player Piano versus Solfa Hands: the parameters behind the verdict, then further details
ParameterRoll Player PianoSolfa Hands
PriceFreeFree
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size217 MB29 MB
Age rating4+4+
DeveloperTakatoshi Ota鑫 孟

In-app purchases

2 purchases

Roll Player Piano

One-time2
  • Using the camera$0.99
  • MIDI file import$3.99
None

Solfa Hands

No in-app purchases

Questions

Is Roll Player Piano free?
Roll Player Piano is free to download, with in-app purchases available.
Is Solfa Hands free?
Solfa Hands is free to download, with no in-app purchases.
Do Roll Player Piano or Solfa Hands have ads?
Neither Roll Player Piano nor Solfa Hands shows ads.
Which is updated more often, Roll Player Piano or Solfa Hands?
Roll Player Piano ships an update every 4 weeks, and Solfa Hands every 3 weeks. Most recently, Roll Player Piano was updated on October 25, 2026 and Solfa Hands on October 11, 2026.

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