SharpEar vs KeyStaff
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SharpEar
Read full descriptionHide full description
SharpEar provides a fun way to learn to recognize music intervals and commonly used music modes. It features audible and visual examples of intervals and over 30 modes as well as hints on how to recognize them. Take listening tests frequently and track your progress through the statistics views! Take performance tests and the app will tell you how well you are prepared to play modes and intervals on your instrument! Terms of Use: https://www.apple.com/legal/internet-services/itunes/us/terms.html
KeyStaff
Read full descriptionHide full description
Level up your note-reading chops with quickfire drills, instant feedback, and a built-in metronome that grooves with every time signature. Practice on letters or piano keys, track your streaks, and learn the theory behind every clef in one spot.
Screenshots
Verdict
The clearest difference is in-app purchases: KeyStaff at none against SharpEar's 9. KeyStaff also leads on iOS requirement (15 vs 17.0). On price, update cadence, 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
Both are free to download. SharpEar sells 9 in-app purchases, starting at $0.99 per month. KeyStaff asks for nothing beyond the download.
SharpEar ships an update every 10 days, KeyStaff weekly. Both last shipped on October 14, 2026.
| Parameter | SharpEar | KeyStaff |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.0 | 15 — better |
| Further details — not scored | ||
| Size | 28 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Vladimir Mollov | Binh Bui |
In-app purchases
SharpEar
- Interval Sequences Monthly$0.991 Month
- Remove Ads Monthly$2.991 Month
- Advanced Modes Monthly$4.991 Month
Show 5 moreShow fewer
- Advanced Modes Monthly$6.991 Month
- Interval Sequences Yearly$9.991 Year
- Remove Ads Yearly$29.991 Year
- Advanced Modes Yearly$49.991 Year
- Advanced Modes Yearly$69.991 Year
- Unlock More Modes and Remove Ads$0.99
KeyStaff
No in-app purchases
