TurboNote for Google Keep is described as 'Google cloud-service Note Manager that you can create new notes, edit notes and delete notes easily, all notes is stored in Google cloud service so you can create notes on iPhone at work, then continue editing them on iPad at home' and is an app in the Office & Productivity category. There are more than 10 alternatives to TurboNote for Google Keep for a variety of platforms, including Online / Web-based, Mac, iPhone, Windows and Android. The best alternative is Google Keep, which is free. Other great apps like TurboNote for Google Keep are Quillnote (Free, Open Source), Memrey (Freemium), Noted (Freemium) and Notebook PEA (Free, Open Source).
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.
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.