Comparison

Earonman vs Scale Runner

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

Head to head
About

Earonman

Master your musical ear with interactive exercises and real-time feedback. Learn intervals, chords, scales, and complex jazz harmonies through a gamified curriculum. Practice specific areas without pressure and track your progress with detailed stats.

Highlights
  • Interactive ear training exercises
  • Real-time feedback
  • Gamified learning path with XP and badges
  • Over 200 levels covering intervals to jazz harmonies
  • Practice mode for focused drilling
  • Specialized training modes for advanced musicians
  • Detailed progress tracking and stats
Features
Read full description

Master your musical ear. Become Earonman. Earonman is a gamified ear training app for musicians of all levels. Build real relative pitch through 258 levels, six PRO Quests, free practice, real-time microphone input, and 1V1 challenges. MAKE IT YOURS Dress Earonman in a Timbre - an app-wide color scheme you buy with EarCoins earned through training. There are 12 Timbres to collect, inspired by record and instrument design. Two are light themes. Your Timbre changes the whole app - backgrounds, text, level map, and statistics. AUTHENTIC SOUND Train with samples of a real Petrof III concert grand piano recorded at Baracca Records. Choose from 8 instruments: piano, Rhodes, strings, harp, electric guitar, flute, clarinet, and horn. 258 LEVELS Progress from basic intervals to advanced jazz harmony: - Melodic and harmonic intervals - Triads and inversions - Seventh and extended chords - Compound intervals - Scales and modes - Slash chords - Jazz voicings - Upper structures, hybrid chords, and polychords LEARN WITH DR. EARMOND SHARP Each level begins with a short chat-style lesson guided by your witty musical mentor. Learn theory through sound, clear explanations, and practical examples. FREE PRACTICE MODE Practice Intervals, Chords, Scales, and Jazz Voicings with no timers, no lives, and no daily limit. Train at your own pace without losing XP. SIX PRO QUESTS - Slashmaster - inversions and slash chords - Functioneer - harmonic functions and secondary dominants - Harmonic Quest - harmonic movement, including Barry Harris-inspired approaches - Guido - guide tones, especially 3rds and 7ths - Hybrid Lab - triads over bass notes - Polychordist - stacked-triad structures OPEN MIC Answer by singing or playing instead of tapping. Earonman listens through your microphone and evaluates your intonation live, note by note. It works with voice, piano, saxophone, trumpet, and more. All audio analysis happens on your device. Nothing is recorded or uploaded. 1V1 DUELS Challenge another player across intervals, chords, scales, cadences, and chord progressions. Invite Earonman users directly or share a link with friends. GAMIFIED PROGRESS - Earn XP - Build streaks - Unlock badges - Climb weekly Leagues - Review past League results - Track accuracy and time SPEAKS YOUR LANGUAGE Earonman is available in English, Czech, Spanish, Simplified Chinese, and Japanese. The last three languages are currently in beta. The app follows your phone language automatically, and you can switch it any time in Settings. Note names stay international (C, D, E, F, G, A, B). ACCESSIBLE BY DESIGN Full VoiceOver support across lessons, quests, and onboarding helps blind and low-vision musicians train independently. The app also includes large touch targets, high contrast, and clear focus indicators. BUILT BY A MUSICIAN Created by a professional jazz pianist, educator, and Barry Harris student. The curriculum connects ear training with music theory, harmony, and practical musicianship. FREE - 3 standard exercises per 8-hour window - Unlimited Practice Mode - Selected basic levels - Basic stats and badges PRO - 14-DAY FREE TRIAL - Unlimited exercises - All 258 levels and lessons - All 6 advanced quests - Open Mic - All 8 instrument sounds - Advanced stats - Weekly Leagues and full history - Full badge system - Cancel anytime Whether you are a student, teacher, performer, producer, or hobbyist, Earonman helps you develop real relative pitch and musical fluency. Start training today. Become Earonman. Privacy Policy: https://www.earonman.com/legal/privacy-policy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Scale Runner

Features
Read full description

Scale Runner turns music theory into something you play, not something you read. Pick a mode and the app names a scale or a chord. You answer on a MIDI keyboard or the on-screen keys, and every note is checked as you play it. In the timed modes it checks when you played, too, against a metronome that never drifts. SIX WAYS TO PRACTICE • Scales: play scales from a random key, note by note • Chords: build the named chord, holding all the notes at once • Voicings: capture a shape you like, then play it in all 12 keys • Scale Running: hold chords and run their modes in time, key by key • Inversion Running: walk a chord up its inversions an octave and back down • Jam Mode: comp diatonic chords in time, one per bar, in a single key VOICINGS: YOUR SHAPES, IN EVERY KEY Play a voicing you want to own, say a drop 2, a rootless 13th or a stack of fourths. Tap its root and Scale Runner spells the shape out in degrees from the bass up. Name it, then drill it around all 12 keys. It is judged by shape rather than exact pitches, so you can play it wherever it falls under your hands, in any octave. Keep a library in order with folders, colour tags, text tags, search and drag-to-reorder. Three saved voicings free, unlimited with Pro. INVERSION RUNNING: ONE CHORD, TOP TO BOTTOM Walk a chord up through every inversion to the octave and back down, so your hand moves through the positions instead of jumping between them. The keyboard transposes to each new root, so the shape stays where you can see it. Run it untimed to build the map, or start the metronome and be judged a position per beat. JAM MODE: COMPING IN TIME Stay in one key and comp its diatonic chords against the click, one per bar. Follow the changes the app calls, or switch to freestyle and pick your own way through the key while it scores what you land on. Loosen it with "any chord tones", which accepts any voicing of three or more notes with the root in the bass, so the way you actually comp counts, not just textbook triads. Sessions run for as many bars as you set, after a counted-in start. SCALE RUNNING: CHORDS AND MODES AT ONCE Hold the diatonic chord in one hand and run its mode in the other, one note per beat, bar after bar, through a progression and around the keys. Set the progression, triads or sevenths, passes per key, and whether keys move chromatically or by fifths. WHAT'S COVERED • 25 scales: all 21 modes of the major, harmonic minor and melodic minor scales, plus both pentatonics, blues and chromatic • 13 chord types: triads, sixths, sevenths, sus and diminished • All 12 keys, cycled chromatically or by fifths • 5 progression presets, including 12-bar blues, as triads or sevenths PLAY IT YOUR WAY Connect any class-compliant MIDI keyboard over USB or Bluetooth and the app remembers it, reconnecting on its own next time. No keyboard? The on-screen keys do everything. TIMING YOU CAN TRUST The metronome runs on absolute time, so it stays honest from 40 to 240 BPM. A quick calibration measures your audio and Bluetooth latency and subtracts it, so an on-beat press reads as on-beat. Set the windows to Easy, Normal or Strict. KEEP THE HABIT Daily streaks with milestones, reminders at a time you choose, and per-key, per-chord and per-mode stats that show what you have actually drilled. PRACTICE WITH FRIENDS (OPTIONAL) Sign in to back up your streak, invite friends, applaud their practice and compare streaks. Only your display name, avatar and streak are shared, and only with friends you invite. Everything else works signed out and offline. SCALE RUNNER PRO A one-time unlock, yours forever on all your devices: • Scale Running, Inversion Running and Jam Mode, unlimited • Full progression presets, sevenths and key cycles • Unlimited saved voicings • Streak protection: one missed day a week is repaired automatically Every timed mode is free to try three times before you decide.

Screenshots

Earonman4 screens
Scale Runner4 screens

Verdict

The call

Earonman and Scale Runner are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Earonman sells 2 in-app purchases, starting at $6.99 per month and Scale Runner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Earonman ships an update every 2 weeks, Scale Runner weekly. Both last shipped on October 9, 2026.

ScorecardNo meaningful differences
Earonman versus Scale Runner: the parameters behind the verdict, then further details
ParameterEaronmanScale Runner
PriceFreeFree
Rating3.0 (4 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.115.0 — better
Further details — not scored
Size87 MB35 MB
Age rating4+4+
DeveloperTomas JochmannC1GNUS STUD1O

In-app purchases

2 purchases

Earonman

Subscriptions2
  • Earonman Pro Monthly14 Days trial$6.991 Month
  • Earonman Pro Yearly14 Days trial$49.991 Year
1 purchases

Scale Runner

One-time1
  • Scale Runner Pro$14.99

Questions

Is Earonman free?
Earonman is free to download, with in-app purchases available.
Is Scale Runner free?
Scale Runner is free to download, with in-app purchases available.
Do Earonman or Scale Runner have ads?
Neither Earonman nor Scale Runner shows ads.
Which is updated more often, Earonman or Scale Runner?
Earonman ships an update every 2 weeks, and Scale Runner weekly. Most recently, Earonman was updated on October 9, 2026 and Scale Runner on October 9, 2026.

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