Comparison

ScaleHelper vs Transposer Pro

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

Head to head
About

ScaleHelper

Improve your musical instrument playing with real-time feedback on your performance. Practice scales, arpeggios, and other exercises with scoring and audio playback. Prepare for exams with customizable challenges and support for multiple instruments and users.

Highlights
  • Real-time performance scoring
  • Audio playback of notes and performance
  • Practice any scale or choose specific exercises
  • Exam preparation with challenge modes
  • Support for multiple instruments and users
  • Customizable syllabus creation
  • Save and share recordings
Features
Read full description

Choose an exercise: see the notes and hear them played Play the exercise: get a score, see the notes you played and listen to your performance ScaleHelper is the fast way to improve your playing. With actual feedback based on what you played, ScaleHelper enables you to concentrate on the aspects of your playing that will help the most. ScaleHelper has 3 modes: 1. Play any scale: ScaleHelper determines the exercise you have played and scores your performance. Ideal for impromptu practise sessions. 2. Choose a scale: Choose the exercise you want to play and ScaleHelper listens and gives you a score. Ideal to improve a specific musical exercise. 3. Challenge me: ScaleHelper will ask you to play exercises from your challenge list that is based on your chosen syllabus. ScaleHelper will identify what you need to practise and make sure you get exam ready while having fun on the way. Ideal for practising a range of exercises. ScaleHelper contains everything you need for most of the instruments covered by the ABRSM, Trinity Guildhall, and MTB examining boards all the way from Grade 1 to Grade 8. ScaleHelper will be there for you every step of the way as you grow as a musician. ScaleHelper allows you to create your own syllabus from the exercises it supports: major scales; major arpeggios; harmonic minor scales; melodic minor scales; natural minor scales; minor arpeggios; chromatic scales; dominant sevenths; diminished sevenths; augmented arpeggios; scales in thirds; whole-tone scales; and pentatonic major scales. All exercises are available starting from every tonic over 1 octave, 1 twelfth, 2 octaves, 2.5 octaves and 3 octaves. There is a range of exercise lists for popular music exams available for download. Instruments supported include Violin, Viola, Cello, Guitar, Bass Guitar, Clarinet, Flute, Oboe, Saxophone, Bassoon, Recorder, Trumpet, Cornet, Trombone and Horn. A full list is available at www.ScaleHelper.com along with details of the rich feature set ScaleHelper has to offer. At less than the price of a single music lesson the guidance that ScaleHelper provides between your lessons builds on that teaching. You can dispense with the need to review scales by playing them in your lessons and instead reuse the time you gain to learn technique and perfect your pieces. ScaleHelper supports multiple users, keeping each user's history for each of their instruments. You can save recordings to study later or to show and play to your teacher and friends. You can also email recordings to share them with others. Have fun competing with your friends to see who can get the highest score or who can maintain the highest average.

About

Transposer Pro

Features
Currently charting
Read full description

This app is designed to show how a note written for a given instrument (e.g. a Clarinet in Bb) would be written on another instrument (e.g. a Horn in F). - Intended for music students, conductors, composers and anybody who wants to get quicker at reading scores - Choose from over 100 instruments to transpose - many with configurable keys and clefs - Use the slider to interactively see the result of the transposition - Includes info on instrument ranges and transposition properties - Supports 4 clefs (automatically selected based on instrument conventions and register) - Includes guidance on the fundamentals of reading transposing instruments - Supports dark and light themes

Screenshots

ScaleHelper4 screens
Transposer Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Transposer Pro at none against ScaleHelper's 11. Transposer Pro also leads on price ($0.99 vs $5.99) and chart position (#194 vs unranked). ScaleHelper's advantage is update cadence (monthly vs every 11 months). On ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

ScaleHelper costs $5.99 and Transposer Pro $0.99 up front. ScaleHelper sells 11 one-off in-app purchases. Transposer Pro asks for nothing beyond the download.

UpkeepUpdate frequency

ScaleHelper ships an update monthly, Transposer Pro every 11 months. The most recent releases landed on September 14, 2026 and September 22, 2026 respectively.

Scorecard4 real differences ยท 5 level
ScaleHelper versus Transposer Pro: the parameters behind the verdict, then further details
ParameterScaleHelperTransposer Pro
Price$5.99$0.99 โ€” better
Positive reviews80.0% of reviewsโ€”
Update frequencyMonthly โ€” betterEvery 11 months
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationPaidโ€”
Best chart rankโ€”#194 โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better16.3
Further details โ€” not scored
Size9 MB3 MB
Age rating4+4+
DeveloperRichard WilliamsMatt Welch

In-app purchases

11 purchases

ScaleHelper

One-time11
  • Violin ABRSM G8$0.99
  • Cello TRINITY G1 to G3$0.99
  • Flute TRINITY G1 to G3$0.99
Show 8 more
  • Viola ABRSM G6$0.99
  • Viola ABRSM G7$0.99
  • Viola ABRSM G8$0.99
  • Violin ABRSM G1 to G3$0.99
  • Clarinet ABRSM G1 to G8$2.99
  • Violin ABRSM G1 to G8$2.99
  • Flute ABRSM G1 to G8$2.99
  • Cello ABRSM G1 to G8$2.99
None

Transposer Pro

No in-app purchases

Questions

Is ScaleHelper free?
ScaleHelper costs $5.99, and also offers in-app purchases.
Is Transposer Pro free?
Transposer Pro costs $0.99, with no in-app purchases.
Do ScaleHelper or Transposer Pro have ads?
Neither ScaleHelper nor Transposer Pro shows ads.
Which is updated more often, ScaleHelper or Transposer Pro?
ScaleHelper ships an update monthly, and Transposer Pro every 11 months. Most recently, ScaleHelper was updated on September 14, 2026 and Transposer Pro on September 22, 2026.

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