Comparison

Keyswing vs Nazoru

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

Head to head
About

Keyswing

Learn piano skills through an engaging musical adventure. This app helps you master note reading, rhythm, and sight-reading with interactive exercises and a progressive learning path. Practice with your own piano, a MIDI instrument, or the virtual keyboard.

Highlights
  • Staff reading and sight-reading practice
  • Rhythm and note value training
  • Progressive learning levels
  • Practice with acoustic, MIDI, or virtual piano
  • Musical forest adventure theme
  • Hands-together practice with tempo control
Read full description

Bring more joy to practice. Build your playing skills, step by step. Keyswing brings staff reading, rhythm, sight-reading and all-round piano practice into an adventure through a musical forest. Follow a little monkey as you explore the interplay of pictures, sound and performance, connecting individual notes and beats into flowing music. Whether you are new to piano or want to strengthen your reading and rhythm foundations, start at a level that suits you. Discover the joy of exploration in focused music practice. READ MUSIC WITH GROWING CONFIDENCE Start in C major and gradually explore other keys and modes. Progressive levels connect notes on the staff with what you play, helping you practice reading accuracy and responsiveness. UNDERSTAND RHYTHM AND FEEL THE BEAT Work from basic rhythms to more advanced combinations. Demonstrations, targeted practice and musical accompaniment help you understand note values and their relationship to the beat. Practice precision while feeling the flow of the music. CONNECT READING AND RHYTHM FOR SIGHT-READING Progress from one voice to two, combining music reading, rhythm and coordination between your hands. Gradually increasing challenges help you connect what you see on the score with what you play. BRING YOUR SKILLS TOGETHER IN COMPLETE PIECES Break pieces into manageable sections, then move from practicing hands separately to playing hands together. Use tempo controls, a metronome and backing tracks to turn focused practice into a complete performance. CHOOSE HOW YOU PRACTICE • Acoustic piano: Use microphone-based note recognition to practice with your own piano. • Digital piano: Connect a compatible MIDI instrument. Bluetooth MIDI is available with supported devices. • Virtual piano: Use the on-screen keyboard to begin note reading and basic practice, even without a physical piano. A FRESH SETTING FOR EVERY STEP FORWARD Forests, streams and musical stages bring a warm sense of story to structured practice. Clear scores, intuitive interaction and inviting music give you a reason to keep exploring. FREE TRIAL CONTENT AND FULL VERSION Download free and try selected training levels. A one-time in-app purchase unlocks the full training content in this app. Existing purchasers can use Restore Purchases to restore access. From reading a single note to playing a musical phrase. Begin your next chapter with Keyswing.

About

Nazoru

Features
Read full description

Nazoru is a reading tool, not a dictionary. Tap any word in the text and its reading, pitch accent and meaning come up. Save it, and the sentence you were reading comes with it — that sentence is what you see again at review. A WORD WITHOUT ITS SENTENCE IS A WORD YOU WILL LOOK UP AGAIN Nazoru keeps the form the word appeared in, the reading of that form, the sentence around it and where you read it. At review the sentence comes back with the word blanked out, so the context helps and the answer does not. THE PARTICLE IS PART OF THE WORD 橋 and 端 look the same until the particle after them. Nazoru's pitch lines always include the particle, so the difference is something you can see. READ WHAT YOU WANT TO READ • 30 short pieces, six for each level from N5 to N1 • Paste your own Japanese text, or send selected text from another app through the share sheet. Each text shows what share of its words have meanings • In Safari, turn on tracing and any Japanese page becomes tappable the same way EACH LANGUAGE IS WRITTEN SEPARATELY, NOT TRANSLATED Choose English, Simplified Chinese, Traditional Chinese, Korean, Vietnamese or Nepali. They are not translations of each other: English notes cover how a word is used and its register, and point out words that sound the same; Chinese notes warn where familiar-looking characters mean something else; Korean and Vietnamese notes give the Sino-Korean and Sino-Vietnamese reading, so words you already know show up at once. GRAMMAR AS PAIRS Grammar points and contrasts at every level from N5 to N1 — the two forms you actually mix up, side by side, with the one question that settles which to use. REVIEW Scheduling with FSRS-5, computed on the phone. One reminder a day at an hour you choose, only on days something is due (delivery is up to iOS). NONE OF IT COMES TO US The dictionary is inside the app, so reading, looking up and review work with no network at all. There is no account to make, no server of ours, no analytics and no advertising. What you read and what you save are never sent to the developer. THE SAME LIST ON A SECOND DEVICE, IF YOU WANT IT After the purchase you can turn on iCloud sync, and your vocabulary list, the grammar you put into review, and your review progress are kept in your own iCloud — a second device then shows the same list. It is off until you turn it on. Settings, the appearance you chose and texts you added yourself are not copied, and the developer cannot read any of it. PRICING All features are open for 7 days from the first time you open the app. After that the reader, vocabulary list, review, grammar and Safari extension keep working, with meanings for N5 and N4. Meanings and grammar for N3–N1 (6,439 more words) open either with a one-time purchase or a monthly subscription. Readings and pitch accent are free for every word. JLPT levels are unofficial: the JLPT has published no word list since 2010. Readings and pitch accent come from the Open JTalk dictionary (modified BSD); levels from Jonathan Waller's compilation (tanos.co.uk). iPhone and iPad, iOS 18 or later. Terms of Use: https://nazoru.glspace.co.jp/terms.html Privacy Policy: https://nazoru.glspace.co.jp/privacy.html

Screenshots

Keyswing4 screens
Nazoru4 screens

Verdict

The call

The clearest difference is update cadence: Nazoru at daily against Keyswing's every 10 days. Keyswing's advantage is iOS requirement (15.0 vs 18.0). 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. Keyswing sells 1 one-off in-app purchase and Nazoru sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Keyswing ships an update every 10 days, Nazoru daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Keyswing versus Nazoru: the parameters behind the verdict, then further details
ParameterKeyswingNazoru
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 10 daysDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size716 MB34 MB
Age rating4+4+
DeveloperGuangzhou Domi Culture Media Co., Ltd.GYOU GI

In-app purchases

1 purchases

Keyswing

One-time1
  • Full Version – Lifetime Unlock$12.99
2 purchases

Nazoru

Subscriptions1
  • Nazoru — monthly$2.991 Month
One-time1
  • Nazoru — one-time$89.99

Questions

Is Keyswing free?
Keyswing is free to download, with in-app purchases available.
Is Nazoru free?
Nazoru is free to download, with in-app purchases available.
Do Keyswing or Nazoru have ads?
Neither Keyswing nor Nazoru shows ads.
Which is updated more often, Keyswing or Nazoru?
Keyswing ships an update every 10 days, and Nazoru daily. Most recently, Keyswing was updated on November 5, 2026 and Nazoru on October 31, 2026.

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