For everything you want to track together
Sync Notes is an app that keeps lists of notes and synchronizes them in real-time with whoever you want.
Keep your shopping list in there and stop using that piece of paper. A paper shopping list is rubbish anyway, in both senses. When you run out of something, that piece of paper is often not in reach. So — oh, irony! — you'll have to not forget to write it down, which I can never do.
Later, when you're coming home wanting to do the shopping on the way, that piece of paper is still back home. Now — double irony — you'll have to remember what you had put on it.
A paper shopping list is rubbish, in both senses.
The app is now available in Google Play but still fully in development.
You may expect regular updates to functionality, usability and looks. Currently, synchronization between phones has been added and the last bugs are being worked out. This will be the minimum viable product with just the core functionality. You will be able to edit notes, organize them in lists and then add someone to synchronize a list with in real time.
To everyone that has helped Beta testing: thanks a thousand times!