Comparison

A vs PianoAI Tutor

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

Head to head
About

A

Create unique geometric shapes through iterative affine transformations. Apply translations, rotations, and scaling to various objects with gradient coloring to generate visually interesting results.

Highlights
  • Affine transformation for shape creation
  • Translation, rotation, and scaling
  • Gradient coloring
  • Supports circles, rectangles, stars, polygons, and lines
  • Iterative shape generation
Read full description

This app allows you to create interesting shapes using affine transformation. Affine transformation can do translation, rotation and scaling on object's coordinate. We do iterations, and in each iteration we apply the affine transformation on the object (circle, rectangle, star, polygon or line), coloured in gradient. At the end, you may like the result. Have fun.

About

PianoAI Tutor

This app helps piano learners of all levels improve their note-reading skills. It offers various practice modes, including flashcards, melodies, scales, and chords, with the ability to play along on a real instrument via microphone. Track your progress and earn badges as you learn.

Highlights
  • AI-powered note reading trainer
  • Flashcard training
  • 7 practice modes (melodies, scales, chords, etc.)
  • Play on real piano via microphone
  • Progress tracking and achievement badges
  • Melody library with classic tunes
Features
Read full description

PianoAI is a note-reading trainer for piano learners at any level. Read a note on the staff, find it on the keyboard, and build fluency through short daily sessions. FLASHCARD TRAINING A note appears on the staff. Tap the matching key on the on-screen piano - or play it on your real instrument using the microphone. Switch between right hand, left hand, or both. TRAINING HUB - 7 PRACTICE MODES - Melodies: learn classic songs phrase by phrase - Scales: play scales up and down the keyboard - Intervals: identify and name intervals by ear and sight - Chords: build major and minor chords on the keys - Circle of Fifths: explore key signatures and relative keys - Speed Drill: read notes as fast as you can - Metronome: keep steady time while you practice MELODY LIBRARY 13 classic tunes across four difficulty levels - from Hot Cross Buns and Mary Had a Little Lamb to Ode to Joy and Frere Jacques. Every melody has a left-hand version too. Learn one phrase at a time: play the right note to advance, a wrong note restarts the phrase. PLAY ON YOUR REAL PIANO Switch to microphone mode. The app listens, detects the pitch in real time, and responds instantly - no MIDI cable needed. PROGRESS AND BADGES Daily score, accuracy, streak, and history. Earn 11 achievement badges across streak, volume, and accuracy. A trophy notification appears the moment you unlock one. CLEAN AND FOCUSED Landscape layout, dark background, no clutter. Help mode shows all note names on the staff when you need a reminder. Great for complete beginners and players who want to sharpen sight-reading skills.

Screenshots

A4 screens
PianoAI Tutor4 screens

Verdict

The call

The clearest difference is update cadence: PianoAI Tutor at every 2 months against A's every 70 months. PianoAI Tutor also leads on iOS requirement (13.0 vs 15.6). On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for A against 5.0 for PianoAI Tutor. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

A ships an update every 70 months, PianoAI Tutor every 2 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
A versus PianoAI Tutor: the parameters behind the verdict, then further details
ParameterAPianoAI Tutor
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings22
Update frequencyEvery 70 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size24 MB24 MB
Age rating4+4+
DeveloperJohannes DwiartantoCoiner.Cab Corp

Customer experience

A

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PianoAI Tutor

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

A

No in-app purchases

None

PianoAI Tutor

No in-app purchases

Questions

Is A free?
A is free to download, with no in-app purchases.
Is PianoAI Tutor free?
PianoAI Tutor is free to download, with no in-app purchases.
Which has better reviews, A or PianoAI Tutor?
A and PianoAI Tutor are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do A or PianoAI Tutor have ads?
Neither A nor PianoAI Tutor shows ads.
Which is updated more often, A or PianoAI Tutor?
A ships an update every 70 months, and PianoAI Tutor every 2 months. Most recently, A was updated on November 1, 2026 and PianoAI Tutor on October 31, 2026.

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