Guitar practice app that listens to your playing and scores chord changes and scales
Interactive French horn fingering chart, tuner and orchestral audition tools
Stage
Not given
Startup
Founded
Not given
2026
Based in
US
Not given
Pricing model
Freemium
Free
Pricing
Free (Practice plan): chord and scale drills, practice history, offline access, up to 7 rest days per year, one jam in C major. Sync $19.99/year or $2.99/month: adds cloud sync across devices and backup. Pro $59.99/year or $8.99/month: adds Diagnosis coaching, all jams in every key, full Songbook ac
Not given
Key features
Scale practice with note-by-note feedback
Practice progress visualization with stronghold building
Offline-first web app with device-local storage
Jam with looping band in multiple keys and scales
Cloud sync across multiple devices
Diagnosis coaching for chord change weaknesses
Songbook showing playable real songs
Rest days system to maintain practice streak
Data export to file
46-note F/Bb interactive fingering chart
Strobe tuner with cent deviation gauge
Just intonation drone generator
12-key transposition tool
FFT spectrum analyzer
Orchestral audition solo excerpts
Mouthpiece cross-brand comparison matrix
Stopped horn physics guide
Complete solo score sheets
What makes it different
Listens to your actual playing and scores every change in real-time via audio
No account, ads, or tracking required for free practice
All practice data stored locally on your device, never uploaded
Works completely offline once installed
Principal-verified fingerings at A=440/442 Hz concert pitch
ISO 16:1975 certified acoustic calibration
Interactive 3D rotor tubing simulation for both Geyer and Kruspe architectures
Web Audio engine for listening to famous orchestral horn solos
24-hour support response guarantee with multi-language assistance
Strumhold
HornLib