Comparison

Complete Ear Trainer vs OnKey Lite

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

Head to head
About

Complete Ear Trainer

Enhance your musical abilities with comprehensive ear training exercises. Master intervals, chords, and scales through gamified lessons and custom programs. Ideal for musicians seeking to improve improvisation, composition, and performance.

Highlights
  • 150+ progressive drills
  • 11 drill types
  • Customizable drills and programs
  • Gamified learning with star system
  • Multiple sound banks
  • Theory cards for concept introduction
  • Cloud sync across devices
Features
Read full description

The ultimate ear training app for musicians. Develop your relative pitch to the full by improving your aural skills and your music theory knowledge. This will better many aspects of your life as a musician, be it regarding improvisation, composition, arrangement, interpretation, singing, or playing in a band. Designed like a video game and with strong pedagogical concepts in mind, this app will make you truly master each interval, chord, scale, etc. before taking you to the next one. Features • 150+ progressive drills arranged over 4 levels / 28 chapters • 11 drill types, 24 intervals, 36 chord types, chord inversions, 28 scale types, melodic dictations, chord progressions • Easy mode: 50+ progressive drills arranged over 12 chapters especially designed for beginners • Play a selection of 21 drills in arcade mode • 5 octaves of actual recorded grand piano sounds • 7 additional sound banks are available, all with actual recorded sounds: vintage piano, Rhodes piano, electric guitar, harpsichord, concert harp, strings and pizzicato strings • In each chapter, a theory card will introduce you to the concepts you will need to know • No need to know how to read music on a staff • Designed like a video game: earn 3 stars in each drill of a chapter to unlock the next one. Or will you be able to obtain perfect 5-star scores? • Don't want to follow the preestablished path of progression? Create and save your own custom drills and rehearse them at your own convenience • Create full custom training programs and invite friends or students to join them. If for example you're a teacher you can create custom programs for your students, add drills every week and view their scores on private leaderboards • Never lose any progress: cloud sync across your various devices • 25 achievements to unlock • Worldwide leaderboards (global, per level, per chapter, easy mode, arcade mode) • Nice and clean user interface with 2 display themes: light and dark • Designed by a musician and music teacher with a Royal Conservatory master's degree Full Version • Download the app and try out the first chapter of each mode for free • One-time in-app purchase to unlock the full version on all your devices Having a problem? Got a suggestion? You can reach us at hello@completeeartrainer.com Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OnKey Lite

This app generates readable, note-based exercises for practicing musical scales and chords. It's ideal for warm-ups, technique drills, or theory work, catering to musicians of all levels. Customize your practice with various patterns, keys, and note name options.

Highlights
  • Generate note-based exercises
  • Practice scales and chords
  • Transpose to any key
  • Set range and clef
  • Choose from various patterns
  • Add note names and time signatures
Features
Read full description

OnKey Lite is a simple, effective tool that helps musicians practice scales and chords with clarity and focus. Just enter your preferences and instantly generate readable, note-based exercises—no more flipping through books or writing them out by hand. Perfect for warm-ups, technique drills, or theory work, whether you're a beginner or an advanced player. Features: Select your scale or chord type Transpose to any key Set your range and clef Choose from various patterns Add note names and time signatures Designed for flexibility. Built for clarity. For all instruments.

Screenshots

Complete Ear Trainer4 screens
OnKey Lite4 screens

Verdict

The call

The clearest difference is in-app purchases: OnKey Lite at none against Complete Ear Trainer's 3. OnKey Lite also leads on review sentiment (100% vs 85%) and iOS requirement (14.0 vs 17.5). Complete Ear Trainer's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (202 vs 2). On price, ads 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. Complete Ear Trainer sells 3 in-app purchases, starting at $0.99 per month. OnKey Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Complete Ear Trainer holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Complete Ear Trainer has 202 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 85% of Complete Ear Trainer's written reviews are positive against 100% of OnKey Lite's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Complete Ear Trainer ships an update every 2 weeks, OnKey Lite every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
Complete Ear Trainer versus OnKey Lite: the parameters behind the verdict, then further details
ParameterComplete Ear TrainerOnKey Lite
PriceFreeFree
Rating4.7 (202 ratings) — better4.5 (2 ratings)
Positive reviews85.1% of reviews100.0% of reviews — better
Number of ratings202 — better2
Update frequencyEvery 2 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.514.0 — better
Further details — not scored
Size78 MB1 MB
Age rating4+4+
DeveloperBinary GuiltRea Meir

Customer experience

Complete Ear Trainer

All ratings202 ratings
Positive93.1%
Neutral2.0%
Negative5.0%
Written reviews174 reviews
Positive85.1%
Neutral7.5%
Negative7.5%

OnKey Lite

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

In-app purchases

3 purchases

Complete Ear Trainer

Subscriptions2
  • Cloud Sync and Web access$0.991 Month
  • Cloud Sync and Web access$9.991 Year
One-time1
  • Full Version$6.99
None

OnKey Lite

No in-app purchases

Questions

Is Complete Ear Trainer free?
Complete Ear Trainer is free to download, with in-app purchases available.
Is OnKey Lite free?
OnKey Lite is free to download, with no in-app purchases.
Which has better reviews, Complete Ear Trainer or OnKey Lite?
Complete Ear Trainer is rated higher. Complete Ear Trainer averages 4.7 out of 5 from 202 ratings, while OnKey Lite averages 4.5 from 2 ratings.
Do Complete Ear Trainer or OnKey Lite have ads?
Neither Complete Ear Trainer nor OnKey Lite shows ads.
Which is updated more often, Complete Ear Trainer or OnKey Lite?
Complete Ear Trainer ships an update every 2 weeks, and OnKey Lite every 3 months. Most recently, Complete Ear Trainer was updated on November 1, 2026 and OnKey Lite on November 3, 2026.

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