Aegis - 2FA (https://github.com/beemdevelopment/Aegis)
Breezy Weather - A very good looking weather app (https://github.com/breezy-weather/breezy-weather)
OnlyOffice Documents - MS Office suite replacement (https://github.com/ONLYOFFICE/documents-app-android)
Fossify Calendar (https://github.com/FossifyOrg/Calendar)
Fossify Messages (https://github.com/FossifyOrg/Messages)
Aves - Local gallery with great organization (https://github.com/deckerst/aves)
Termux - Terminal emulator (https://github.com/termux/termux-app/)
Unexpected Keyboard - A unique keyboard that pairs nicely with Termux (https://github.com/Julow/Unexpected-Keyboard)
WG Tunnel - WireGuard client (https://github.com/wgtunnel/wgtunnel)
These are all easily installed through Obtainium: https://obtainium.imranr.dev/
* NextCloud -- client for personal NextCloud server; this app is used primarily for file sync, with other features accessed with other apps. (https://nextcloud.com/features/?filter=Clients#android-clien...)
* KeePassDX -- password manager, shares DB with KeePassXC on desktop, which is synced via NextCloud. Also functions as a TOTP authenticator. (https://www.keepassdx.com/)
* DAVx5 -- CalDAV and CardDAV client; keeps mobile calendar and contact list synced with private NextCloud server. (https://www.davx5.com/)
* AntennaPod -- excellent FOSS podcatcher. (https://antennapod.org/)
* KDE Connect -- desktop sync tool; allows file/clipboard/keyboard/audio/etc. sharing between phone and a Linux desktop. (https://kdeconnect.kde.org/)
* Kore -- remote control app for a Kodi instance running on your LAN. (https://kodi.wiki/view/Kore)
And I don't see F-Droid itself mentioned -- it's the most popular repository of FOSS software for Android, with an accompanying app: https://f-droid.org.
F-Droid itself is great, but I find that the NeoStore front end to F-Droid is superior because it has multi-repository capability, offering a long list of alternative apk sources that can readily be verified for quality.
Also, the desktop client on Linux is quite useful.
Alternatives for Windows etc. are Cruiser Maps, a Java application (and also available as an Android app).
However, I listed it because it is a "usable" alternative that works offline.
Where it’s lacking is POIs – there’s way more stuff on Google Maps, and if I’m looking for some place in particular, I usually go straight to Google, then copy the location over to CoMaps.¹ I then try to add it to OSM when I have the time. Still again, there’s no reviews or photos (in the app; OSM does support photo linking).
Public transit is another problem. It’s usually okay for metro (MRT/LRT/etc), but I wouldn’t trust it with buses just yet.
¹ – yes, there’s been another fork: https://en.wikipedia.org/wiki/CoMaps#History
Although I would like speed limits shown in MPH in the UK, OrganicMaps' KMH limits were useful on the Continent.
Does anybody know of a project that offers public transport routing? Ideally with real time information, but I can live with only using schedules or even just average passage interval.
The other general sticking point for me is the reviews, but I could invite more serendipity to my restaurant search.
It's pretty excellent! The improved integration with OpenStreetMaps to provide edits/additions is great. I made my first contribution to OSM via CoMaps.
I'd love to have something like this for Linux desktops as well. Maybe a website that has app-lists, where people can then potentially add info about their use cases and reasoning for their choices. Could be a great subreddit!
I tried Omarchy specifically because installed an opionated selection of apps to covered most bases, and it got me started in Arch fairly quickly. I've now completely swapped out all the components so I no longer use Omarchy at all, but it was a great way to get back into desktop Linux after being away for 20 years.
I also made a custom fork with some quality of life improvements, like series and part visible on screen, headset remote click patterns (tap for play/pause, double-tap for next, etc.).
Currently I'm working on a totally DIY build offline audio (book) player with the footprint a bit bigger than the iPod Nano 7g that maybe never will be finished, but ATM it is fun to work on... (see https://github.com/sandreas/rust-slint-riscv64-musl-demo for the testing repo and https://github.com/nanowave-player/nanowave-ui for the latest code I'm working on)