Easy Note vs jAMSKOOL Polarity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Note
Practice reading music notes with an on-screen keyboard or your own instrument. The app listens and checks your accuracy, offering adjustable tempos and key signatures. Includes a song library and import options for further practice.
- Instrument note recognition
- Adjustable tempo
- Transposable key signatures
- Metronome
- Note-by-note or full song practice
- Song library
- Import MusicXML, MIDI, Score Creator files
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Easy Note is an app that helps you practice reading music notes. You can practice with the on-screen keyboard or with your own instrument (the app listens to you while you're playing and checks if you play the correct notes). * FEATURES: - Practice in different tempos. You can adjust the tempo of the songs to the speed that are suitable with you. - Practice in different key signatures. You can transpose each song into different keys to practice. - Background music that makes it more interesting to practice. - Metronome that helps you play in time. - Two practice modes: practice note by note separately, or practice playing the song at the correct tempo. - Note recognition by micro. You play the notes with your instrument then the app checks if you play correctly or not. - Song library with many popular songs. - Import more songs. You can import MusicXML, MIDI, Score Creator files into the app for further practice.
jAMSKOOL Polarity
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A daily tonal meditation. There is a hidden pattern underneath all the music you have ever loved. Every interval has a feeling. Every feeling has a mirror. The flat two and the seven. The flat three and the six. The four and the five. You've been hearing these polarities your whole life. Now you'll know their names. WHAT IT IS Polarity is a daily meditation app for musicians and curious listeners. Each session plays a drone that moves through all 12 keys over 13 minutes - and asks you to notice what you feel in your body, not just your ears. Every scale tone has an emotion, and an opposite across the spectrum, and adjacent within the spectrum. TRACK 1 - INTERVAL POLARITIES (12 sessions) Every tone is one half of a pair. The 3 only sounds bright because the b3 is its shadow. The 5 only sounds settled because there's a b5 that isn't. Each session sits with one scale tone over a root drone - your job is to notice which way it tips, what it leans away from, what it's the opposite of. - b2: The Rock. Hard, biting. - 2: The Pillow. Soft, gentle. - b3: The Weight. Dark, heavy. - 3: The Smile. Happy, bright. - Plus 8 more sessions. TRACK 2 - CHORD GRAVITY (48 sessions across 3 levels) The chord doesn't change. The pull does. Three notes - root, third, fifth - keep playing, but every twenty seconds the drone shifts emphasis. The 3 steps forward and tries to become home. Then the 5. Every color tone in the scale rearranges itself behind the chord depending on which tone is winning. - Level 1: One color tone - Level 2: Two color tones - Level 3: Full chord colors TRACK 3 - SCALE FIELDS (34 scales) A scale is a pattern of pulls. Phrygian leans toward its dark pairs. Lydian leans toward its bright ones. Dorian sits between, holding two pulls at once. Drone root plays continuously. Scale tones enter freely - sometimes alone, sometimes in pairs. Sit inside the field. Notice what pulls at what. Major modes, melodic minor, Japanese, Middle Eastern, and more. CHORD LABORATORY Build any chord. Hear it as piano or sustained drone. Toggle between THEORY and FEEL labels. The totem pole shows what's in the mix - root at the bottom, extensions stacked above. THE FRACTAL MAP The twelve intervals from root to octave aren't random. They sit on a shape - two halves that mirror each other across the tritone. Every tone has a twin on the other side, and the twins carry opposite emotional charges. Polarity's interactive map lets you hear it directly. ALSO INCLUDED - Library: 66 chords with feel descriptions. - Scale glossary: 34 scales, each with its character. - Quizzes: three modes (build chords by ear, name a chord, name a scale), four difficulty levels. - Session journal: track what you noticed, build a body map of your ear. WHAT POLARITY COLLECTS Nothing personal. No accounts. No email. No tracking. No ads. All audio is generated on-device. Session journals are stored locally and never uploaded. Anonymous crash diagnostics via Sentry only - no identifying data. PAY ONCE. KEEP FOREVER. $14.99 USD, one-time. No subscription. No levels to unlock. No in-app purchases. All three tracks, all 94 sessions, the chord laboratory, the fractal map, the library, the quizzes - included. Future updates included.
Screenshots
Verdict
The clearest difference is ads: jAMSKOOL Polarity at none against Easy Note's shown. Easy Note's advantage is iOS requirement (10.0 vs 15.1). On price, update cadence, 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
Both are free to download. Easy Note sells 1 one-off in-app purchase and jAMSKOOL Polarity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Easy Note ships an update fortnightly, jAMSKOOL Polarity every 10 days. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.
| Parameter | Easy Note | jAMSKOOL Polarity |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 118 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | TRAN PHUONG | Mike Binnendyk |
In-app purchases
Easy Note
- Easy Note - Full version$4.99
jAMSKOOL Polarity
- Unlock Polarity$14.99
Questions
Is Easy Note free?
Is jAMSKOOL Polarity free?
Do Easy Note or jAMSKOOL Polarity have ads?
Which is updated more often, Easy Note or jAMSKOOL Polarity?
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