Excellent work! I've applied this to my website at https://songquotes.pro/ and yes this looks like the most spam comment I've ever done but there it is. It's real. :)
You don't have to compare this to Evernote. I really like what you have done so far. The preview of the MD is fantastic. Feels hard enough for me to find just that! I love the use of GitHub. I'm in!
Notification Cron - This is a great way to use your phone for reminders and learn Quartz Cron.
SunTimes - This app will set alarms at certain sun/moon points in the day. So whatever time sunrise is at your location an alarm can go off. I like to use it to let me know when Golden Hour starts and the day is almost ending.
QuillNote - I love this note taking app, and have taken to posting thoughts there to lower the number of tweets/posts I send. I get the dopamine rush of typing out and saving my thought, and it all stays local.
Mindful Notifier - Whenever this bell goes off (and I set it random between 90 minutes and 120 minutes) I take three very deep breaths. The sayings are okay, but the healthy intake of oxygen is great.
SMS Scheduler - An older app, but a great way to send a text at a later time. My daughter has a different work schedule than I do, so I schedule texts to her for when work is done. Also, if someone asks me to remind them of something later, I schedule the text and it sends as a reminder.
Dodge - Simple game of getting across the screen. My record is 13.
Snotz - I like this for non-thoughts (Quillnote) but tend towards quillnote more. It's a note taking app with nice colors.
FOSS Browser - This is a nice simple browser for when I don't want to be tracked.
Nunti - Pretty good feed reader that supposedly uses AI to tell what stories to share. I'm still training it, but prefer it over online news aggregation.
Vector Pinball - I played this game longer than I should have.
1list - great shopping list app, or any other list you may need to make, and all stays local.
I am a heavy user of f-droid and avoid these 'Simple' apps. The high level of nag is not just annoying but borders on begging. Having pro versions where you can change colors defeats the idea of open source. I hate bringing the negative energy, but there is a treasure of apps available with f-droid other than these. I am glad they have their own website and wish they just went and did their own thing there.