maintained
Crystal Ball
de.singular.crystalballDetects guitar chords and combines them into song sheets.
Latest documented release0.526 Aug 2026 · 13.1 MB→01 / Overview
Is Crystal Ball safe?
Crystal Ball listens to your guitar and tells you what chord you just played. Press Detect single chord, strum, and it names the chord and draws how to fret it — with the chords it nearly picked instead one tap away, and other ways to play the same one further up the neck. Capture a whole part and it becomes a song sheet you can keep, correct and share. Early-stage release — expect rough edges. F…
- Developer
- Kreuder
- Category
- Multimedia
- First release
- 26 Aug 2026
- License
- Not documented
02 / Package identity
Technical fingerprint
Application ID
de.singular.crystalballLatest APK SHA-256
b3a541365bdcfeccb4ed63af95be9374cc6748c41e35b89972a7329ff8e84b19Signing certificate
DF:EC:D8:AC:BA:7B:49:CA:D0:93:1C:24:2B:B7:4F:93:DF:21:09:9B:C1:A1:C0:78:97:49:CE:B5:FF:B3:51:5FMIN ANDROID26TARGET36ARCHITECTUREarm64-v8a · armeabi-v7a · x86 · x86_64
03 / History
Project timeline
Package observed in source index
Metadata and versions observed from the fdroid repository index.
04 / Version archive
Documented releases
1 TOTALVersionReleasedAndroidArchitecture
0.526+arm64-v8a, armeabi-v7a, x86, x86_64→05 / Safety & access
Safety verdict
Authentic — file hash matches the source indexNo ads or tracking flagged by the source
IntegritySHA-256 verified vs source
SourceOpen-source · fdroid
Permissions2 declared · 1 sensitive
Signaturepresent
Anti-featuresNo known anti-features
Sensitive accessRECORD_AUDIO
Declared permissions
Tracker status: Not assessed by WIKI for Android.
06 / Sources
Evidence ledger
Each entry is a captured public reference backing this record.