Comparison

Harmony Keyboard vs Simple Arranger Keyboard

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

Head to head
About

Harmony Keyboard

Features
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Train perfect intonation with just intonation. Harmony Keyboard is a powerful practice tool designed for musicians who want accurate tuning and beautiful harmony. It helps you hear and practice chords using both just intonation and equal temperament, making it ideal for ensemble rehearsal, wind band practice, choir training, and ear training. Whether you're a student, performer, or teacher, Harmony Keyboard helps develop a better sense of pitch and harmonic balance. KEY FEATURES • Just Intonation & Equal Temperament Switch between tuning systems to understand how harmony and tuning work in real music. • Intonation Training Practice tuning chords and intervals to develop a precise musical ear. • Instant Transposition Transpose instantly to any key for flexible practice. • Hold Function Sustain notes and chords while listening carefully to intonation and balance. • Wind Instrument Sounds Includes sounds such as flute, clarinet, and saxophone for realistic ensemble practice. • Customizable Tuning Adjust reference pitch (e.g. A=442Hz) and note name display. PERFECT FOR • Wind band practice • Brass and woodwind players • Choir rehearsal • Ear training • Music students and teachers Harmony Keyboard is a simple yet powerful tool for musicians who care about tuning, harmony, and musical precision.

About

Simple Arranger Keyboard

Create, practice, and perform music with a virtual instrument, synthesizer, and production studio. Features a velocity-sensitive keyboard, live accompaniment rhythms, and MIDI recording capabilities. Enhance your sound with studio-grade effects and customize your setup for the perfect playing experience.

Highlights
  • Velocity-sensitive arranger keyboard
  • Live accompaniment rhythms and styles
  • MIDI player and recorder
  • Learn music with note names and Solfege
  • Studio-grade effects
  • Customizable keyboard size
  • Built-in metronome
Features
Read full description

Unleash your musical creativity with Simple Arranger Keyboard, the ultimate virtual instrument, synthesizer, and music production studio for your Mobile device. Whether you're a performing musician, a music producer, or a passionate hobbyist, this app provides the tools you need to create, practice, and perform anywhere. KEY FEATURES: PROFESSIONAL ARRANGER KEYBOARD Play a velocity-sensitive piano keyboard with a powerful built-in arranger engine. Choose from dozens of live accompaniment rhythms and styles, from pop and rock to jazz and dance. MIDI PLAYER & RECORDER Load, play and share your recordings as a MIDI file. Use it as a learning tool, for practice, or as a backing track for your live performance. You can also record your performances, melodies, and song ideas directly in the app and save them for later. MORE HIGHLIGHTS: - Learn Music Faster: Switch between standard note names and Solfege (Do, Re, Mi) to improve your sight-reading and music theory knowledge. - Studio-Grade Effects: Add depth and character to your sound with effects and other built-in audio features. - Your Music, Your Way: Fully customize your setup. Adjust the keyboard size and create the perfect playing environment. - Perfect for Practice: Use the built-in metronome to stay in time. If you are looking for an all-in-one keyboard app, synthesizer, MIDI player and arranger, your search is over. Download Simple Arranger Keyboard today and turn your device into a powerful musical instrument!

Screenshots

Harmony Keyboard4 screens
Simple Arranger Keyboard4 screens

Verdict

The call

The clearest difference is iOS requirement: Simple Arranger Keyboard at 13.0 against Harmony Keyboard's 15.0. On price, update cadence, ads and in-app purchases 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. Harmony Keyboard sells 1 in-app purchase, starting at $0.49 per month and Simple Arranger Keyboard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Harmony Keyboard ships an update monthly, Simple Arranger Keyboard every 3 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 8 level
Harmony Keyboard versus Simple Arranger Keyboard: the parameters behind the verdict, then further details
ParameterHarmony KeyboardSimple Arranger Keyboard
PriceFreeFree
Rating—4.7 (15 ratings) — better
Number of ratings—15 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsYesYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size45 MB130 MB
Age rating4+4+
DeveloperSINCLAIR SYSTEMMustafa Demir

In-app purchases

1 purchases

Harmony Keyboard

Subscriptions1
  • Pro Version$0.491 Month
1 purchases

Simple Arranger Keyboard

One-time1
  • Get Premium$4.99

Questions

Is Harmony Keyboard free?
Harmony Keyboard is free to download, with in-app purchases available.
Is Simple Arranger Keyboard free?
Simple Arranger Keyboard is free to download, with in-app purchases available.
Do Harmony Keyboard or Simple Arranger Keyboard have ads?
Both Harmony Keyboard and Simple Arranger Keyboard show ads.
Which is updated more often, Harmony Keyboard or Simple Arranger Keyboard?
Harmony Keyboard ships an update monthly, and Simple Arranger Keyboard every 3 weeks. Most recently, Harmony Keyboard was updated on November 5, 2026 and Simple Arranger Keyboard on October 30, 2026.

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