Metronome and tuner app designed for beginner and advanced musicians.

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Antivirus & safety scan results

Scan Date: Jul 27, 2026 Software Version: 1.1.3

Status: ✅ Trusted & Safe to install This app is signed by cognitivity with trusted and verified digital signature and it will updated existing Chronal installations Certificate fingerprint: 9b7099014ff48ff5f5ec1bc89ea6e55f51669d45 Issuer: C:US, O:cognitivity, ST:NH How we verify APK files security

Android antivirus Status

K7GW Clean ✅

DrWeb Clean ✅

VirIT Clean ✅

ClamAV Clean ✅

Google Clean ✅

Lionic Clean ✅

Sophos Clean ✅

Yandex Clean ✅

Alibaba Clean ✅

Tencent Clean ✅

Xcitium Clean ✅

Fortinet Clean ✅

Kingsoft Clean ✅

Symantec Clean ✅

AhnLab-V3 Clean ✅

Kaspersky Clean ✅

Microsoft Clean ✅

Trustlook Clean ✅

ESET-NOD32 Clean ✅

Avast-Mobile Clean ✅

NANO-Antivirus Clean ✅

BitDefenderFalx Clean ✅

Chronal Music Learning app for Android description

Metronome features:

Beat visualization
Two synchronized metronomes for polyrhythms
Conductor mode with metronome and tuner
Notation editor for creating custom rhythms
Fullscreen mode for easy peripheral viewing
Play audio files with custom tempos

Tuner features:

Transpose to any instrument
Custom tuning to any frequency
Tuner graph
Real-time BPM detection from microphone
A4 reference tone

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Screenshots & Video

Specifications

Package Name	dev.cognitivity.chronal
Requirements	Android 6.0 (Marshmallow API 23)
Author	cognitivity
APK Size	9.6 MB
Categories	Music and Audio, Music Learning, Virtual Instruments and MIDI Controllers
Source Code	https://github.com/cognitivitydev/Chronal