Comparison

Sensation Drill vs OnKey

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

Head to head
About

Sensation Drill

Practice trumpet sight-reading with randomized musical scores featuring unexpected intervals. Focus on intonation and attacks to improve your inner ear and embouchure. The app generates new scores with a tap and allows intuitive zooming.

Highlights
  • Randomized musical score generation
  • Unexpected interval exercises
  • Focus on intonation and attacks
  • Improve inner ear and embouchure
  • Intuitive pinch-to-zoom score display
  • Real-time music score rendering
Features
Read full description

Train your sight reading and trumpet playing skills by playing unexpected intervals. As proposed by Clint 'Pops' McLaughlin the Sensation Drill app generates random scores with intervals you can't remember from well-known melodies. Playing this music-scores with focus on intonation and proper attacks will improve your inner ear and your embouchure. By tapping on the display the app will generate a completely new score. Scores can be zoomed be intuitive pinch gestures which trigger a complete re-formatting of the score. This app uses the GUIDOLib for rendering high quality music scores in real-time.

About

OnKey

This app generates readable, note-based exercises for practicing scales and chords. It's ideal for musicians of all levels looking for a focused and efficient way to improve their technique and theory knowledge without manual preparation.

Highlights
  • Generate note-based exercises
  • Select scale or chord type
  • Transpose to any key
  • Set range and clef
  • Choose from various patterns
  • Add note names and time signatures
Features
Read full description

OnKey Scale Practice 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

Sensation Drill4 screens
OnKey4 screens

Verdict

The call

The clearest difference is review sentiment: Sensation Drill at 100% against OnKey's 0%. Sensation Drill also leads on rating (5.0 vs 3.0) and price ($0.99 vs $4.99). OnKey's advantage is update cadence (every 2 months vs every 28 months) and iOS requirement (14.1 vs 17.0). On ratings volume, ads, in-app purchases and monetization model 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

Sensation Drill costs $0.99 and OnKey $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sensation Drill holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of Sensation Drill's written reviews are positive against 0% of OnKey's.

UpkeepUpdate frequency

Sensation Drill ships an update every 28 months, OnKey every 2 months. The most recent releases landed on October 24, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Sensation Drill versus OnKey: the parameters behind the verdict, then further details
ParameterSensation DrillOnKey
Price$0.99 — better$4.99
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings12 — better
Update frequencyEvery 28 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.1 — better
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperKilian IT-ConsultingRea Meir

Customer experience

Sensation Drill

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OnKey

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Sensation Drill

No in-app purchases

None

OnKey

No in-app purchases

Questions

Is Sensation Drill free?
Sensation Drill costs $0.99, with no in-app purchases.
Is OnKey free?
OnKey costs $4.99, with no in-app purchases.
Which has better reviews, Sensation Drill or OnKey?
Sensation Drill is rated higher. Sensation Drill averages 5.0 out of 5 from 1 ratings, while OnKey averages 3.0 from 2 ratings.
Do Sensation Drill or OnKey have ads?
Neither Sensation Drill nor OnKey shows ads.
Which is updated more often, Sensation Drill or OnKey?
Sensation Drill ships an update every 28 months, and OnKey every 2 months. Most recently, Sensation Drill was updated on October 24, 2026 and OnKey on November 3, 2026.

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