Comparison

Piano Ear Training Pro vs R+ ENGINEER

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

Head to head
About

Piano Ear Training Pro

Develop your musical ear with comprehensive ear training exercises. Personalize your learning by focusing on specific musical elements and track your progress with intuitive tools. Features include interval, chord, and pitch recognition, designed for all skill levels.

Highlights
  • Personalized training by chords, intervals, scales
  • Progress tracking
  • Configurable piano interface
  • Interval training
  • Chord distinction
  • Pitch and melodic dictation
Features
Read full description

• Suitable for beginners to advanced musicians with all the essential ear training exercises in various levels. • Quickly develop aural skills by personalising your training by focusing on specific chords, intervals, progressions, scales etc. • Track progress as you improve efficiently in each ear training discipline. • A simple intuitive design enables you quickly enjoy ear training and follow the help and tutorials to get most out of the ear trainer. • Configurable piano which strongly aids connection between visual and aural skills and musical instruments. • Most popular and extensive ear training with over 1 millions users. • Highly recommended by professional and student musicians in top musical schools contributing to the design for their own use. • Ideal for all musicians as you can easily change the instrument sounds. • No advertising and all the content in this Pro version. Exercises: ***** interval training ***** Being able to determine intervals between notes in the key skill to playing by ear. Challenge your expertise by changing the base note or playing the notes together. This is made easy as it associates an interval with a well known song. ***** chord distinction ***** Can you distinguish between a Major from a Minor chord for example? There are 100s of chords to differentiate. You can help your understanding by selecting arpeggio mode to aid chord distinction and selecting highlight to visualise the construction of the chords. You can challenge yourself by changing the key of the chord. Work your way quickly and steadily through the levels. Another exercise to help you fully understand musical theory and composition. ***** higher lower ***** Given 2 notes, can you identify whether the second note is higher or lower in pitch than the first note? Musicians can train their ears to recognise different pitches. Whilst this is a beginners exercise, you can challenge yourself by reducing the range of the 2 notes played. ***** pitch training ***** After hearing a pitch, can you accurately play that same pitch on the piano? This exercise allows your to zoom in on the note using relative pitch skills, and will record how many notes it takes for you to correctly identify. You can easily adjust the difficult by setting a time interval between listening and playing. ***** interval comparison ***** Given 2 intervals, can you determine whether the second interval is wider or narrower in distance? ***** pitch identification ***** A popular test that comes up in music grade aural exams. Given a chord can you identify a specific note/pitch within it? For example, given a C Major chord, can you find the highest note? ***** melodic dictation ***** Listen to a melody and then play it back on the piano. You can make it easier by adjusting the speed and focusing on a few notes at a time. ***** chord progression ***** Can you distinguish a I - IV - V - I progression from a I - V- IV - I? Contains all the most common chord progressions which you will find in nearly all the most popular songs. ***** scale identification ***** Listen to a scale and can you then identify it as a Major scale, Harmonic Minor or Natural Minor for example? ***** absolute pitch ***** Given the same note played at different octaves, can you identify its pitch? Includes a Learning mode to imprint the pitches into the brain.

About

R+ ENGINEER

This application connects to a smart device kit, enabling the use of sensors, video, and audio processing. It offers simple programming to control and manipulate the connected hardware, making it an interactive educational tool.

Highlights
  • Connects to ROBOTIS ENGINEER Kit
  • Utilizes smart device sensors
  • Supports video/image processing
  • Enables audio input/output
  • Intuitive programming interface
  • Control and manipulate hardware
Features
Read full description

R+ ENGINEER is a smart device application developed by ROBOTIS. This app connects to ROBOTIS ENGINEER Kit so that various sensors, video/image processing, audio input/output of smart device can be utilized. Simple and intuitive programming allows children to control and manipulate the ROBOTIS ENGINEER Kit.

Screenshots

Piano Ear Training Pro4 screens
R+ ENGINEER4 screens

Verdict

The call

The clearest difference is price: R+ ENGINEER at Free against Piano Ear Training Pro's $29.99. R+ ENGINEER also leads on iOS requirement (12.0 vs 15.0). Piano Ear Training Pro's advantage is rating (4.3 vs 1.5) and update cadence (every 2 months vs every 4 months). On 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

R+ ENGINEER is free to download; Piano Ear Training Pro costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Piano Ear Training Pro holds the better App Store score, 4.3 against 1.5. That said, the two scores are not equally well evidenced: Piano Ear Training Pro has 16 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Piano Ear Training Pro ships an update every 2 months, R+ ENGINEER every 4 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

Scorecard6 real differences · 4 level
Piano Ear Training Pro versus R+ ENGINEER: the parameters behind the verdict, then further details
ParameterPiano Ear Training ProR+ ENGINEER
Price$29.99Free — better
Rating4.3 (16 ratings) — better1.5 (2 ratings)
Positive reviews33.3% of reviews—
Number of ratings16 — better2
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size44 MB116 MB
Age rating4+4+
DeveloperLearn To Master LtdROBOTIS CO., LTD.

Customer experience

Piano Ear Training Pro

All ratings16 ratings
Positive75.0%
Neutral18.8%
Negative6.3%
Written reviews21 reviews
Positive33.3%
Neutral9.5%
Negative57.1%

R+ ENGINEER

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Piano Ear Training Pro

No in-app purchases

None

R+ ENGINEER

No in-app purchases

Questions

Is Piano Ear Training Pro free?
Piano Ear Training Pro costs $29.99, with no in-app purchases.
Is R+ ENGINEER free?
R+ ENGINEER is free to download, with no in-app purchases.
Which has better reviews, Piano Ear Training Pro or R+ ENGINEER?
Piano Ear Training Pro is rated higher. Piano Ear Training Pro averages 4.3 out of 5 from 16 ratings, while R+ ENGINEER averages 1.5 from 2 ratings.
Do Piano Ear Training Pro or R+ ENGINEER have ads?
Neither Piano Ear Training Pro nor R+ ENGINEER shows ads.
Which is updated more often, Piano Ear Training Pro or R+ ENGINEER?
Piano Ear Training Pro ships an update every 2 months, and R+ ENGINEER every 4 months. Most recently, Piano Ear Training Pro was updated on October 24, 2026 and R+ ENGINEER on October 16, 2026.

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