You do not have to install blindly. Use these tools to check the file’s safety:
Includes two sets of 9 drawbars for upper and lower manuals plus a pedalboard. vb3m apk
No. APK files are exclusive to Android. iOS users would need a jailbroken iPhone and an IPA file, which is even riskier. You do not have to install blindly
If VirusTotal shows even 2 or more detections (e.g., "Trojan.Android.Generic"), delete the file immediately. delete the file immediately.