AudioNote is described as 'Record notes and audio synced with the best note taking app in the App Store!' and is an app in the Audio & Music category. There are more than 10 alternatives to AudioNote for a variety of platforms, including Mac, Online / Web-based, iPhone, iPad and Android. The best alternative is Google Keep, which is free. Other great apps like AudioNote are Dictanote (Freemium), Noted (Freemium), Notebook PEA (Free, Open Source) and GitJournal (Freemium, Open Source).
Notebook PEAs - encryption of notes. Protects your private notes with a password. The text is never stored unencrypted on your disk (until you explicitly decide to do that). The used cryptographic primitives are currently considered as safe as possible.
Take beautiful markdown notes whenever you feel inspired. Place them in notebooks and tag them accordingly. Stay organized by making task lists, set reminders and keep everything in one place by attaching related files.