I use KDE Connect as a media remote and to transfer files between my phone and computers. It has quite a few other functions, like remote mouse control, sms, seems to share clipboards as well.

https://kdeconnect.kde.org/

All of these list are great as we discover new apps each time.

But, I would suggest to write what is the app about.

• Moshidon: letting me communicate with people on Mastodon
• QKSMS: text message (SMS) app
• KISS Launcher: a very neat launcher that took a while before I could love it as I do now
• FairEmail: an email client with tons of options
• Mull: a fork of Firefox
• Privacy Browser: a browser based on WebView
• Simple Calendar Pro: for managing my self-hosted CalDAV (waiting for Fossify’s version)
• Fossify Gallery: managing my images and videos
• AntennaPod: listening to podcasts
• Bitwarden: managing my self-hosted vaultwarden
• Download Navi: download files instead of using the browser
• Foxy Droid: making browsing apps on mainly F-Droid and IzzyOnDroid like old-school Google Play Store
• Loop Habits: logging my habits
• Hypatia: protecting my smartphone from malware using ClamAV
• Lemuroid: able to play my childhood favourite games wherever I am
• Miniflutt: read RSS posts through my self-hosted Miniflux server
• Mullvad VPN: protecting my identity wherever I am
• OpenTracks: track my movements
• Seal: download videos from mainly YouTube, but also converting YouTube videos to MP3 files (perfect for downloading music mixes for my bicycle trips)
• Syncthing: syncing important files to and from my desktop
• Voyager: browsing Lemmy
• URL Radio: listening to manually added radio stations
• Tasks: reminding me to do stuff
• Unexpected Keyboard: by far the best keyboard with really good shortcuts
• Planisphere: exploring the sky and letting me plan my astro photography
• LibreTube: exploring YouTube through Piped API
• Simple Voice Recorder: letting me record stuff when I don’t have my audio recorder with me (waiting for Fossify’s version)

Not sure about the rest of those, but Obsidian isn’t OS either.

FOSS app which I use -

• Jerboa: Lemmy Client
• Megalodon: Mastodon Client
• RiMusic: YT Music Client
• Drodify: Material You F-Droid Alternative
• Libretube: YouTube Client
• FluffyChat: Matrix Client
• Monocles Chat: XMPP Client
• KISS Launcher: Fast and Clean App Launcher
• Cherrygram: Telegram Client
• Revolution IRC: IRC Client
• SD Maid SE: System Storage and app cache cleaner.
• SuperFreeze: Help in Force Stoping the app
• Next Player: Material You Video Player
• Diohub: Github Client
• Gitnex: Codeberg(ForjeGo/Gitea) Client
• Native Alpha: Webapp Manager - Help in creatimg Webapp
• APK Kit: APK Exporter + Give detail of Everyapp
• Material Files: File Manager
• Kiwi Browser: A better Chromium browser which Chrome Extension and Inspect Element Features AKA Dev Tools.
• Fossify Gallery: Gallery App
• Atomic: A Periodic Table App
• OpenCalc: Material You Calculator
• Proton Mail: proton.me only support its own client :(
• Psiphon: Open Source VPN(Only Client)
• Arcticons: A Line Icon Pack
• MJ PDF: A PDF viewer.
• Simple Keyboard: Best Minimal Keyboard.
• Mauth: A 2FA app
• DNS quick Tile: Add a system DNS quick to turn on or off from notification bar.
• also de-googled my device

Closed Source app which I use :( -

1.Modded

• Whatsapp Beta Mod - Privacy Features (Use because of School)
• MyInsta: Modded Instagram (Use because of friends)
• Duolingo: Removed Ads and Tracker(Use because that Green Owl have My family)
• Mimo: A code learning app - Removed Tracker and Ads (Use for fun)

2. Non-Modded

• Mobilisim: Where I got my All Mods
• ApkTool M: Android Apk Editor (Installed it when I really need it like changing package name of an app or removing a alarming permission from an app) - Give me suggestion for this app if you know

Suggestion For OP

OP You should use Florisboard beta it’s good and also Obsidian is not open source.

Obtainium is great for updating apps hosted outside the playstore, big upside being you don’t need to bother with FDroid releases

THANK YOU for antennapod!!! What an incredibly beautiful app, I’m so impressed!!

If you use Organic Maps you may be interested in https://streetcomplete.app to help fill out the map

Newpipe
Aurora store
Organic maps
PDF viewer
Molly
Audile
Jellyfin
Nova Wallet
Openboard (though seems dead and looking for alternative)
Internxt

FairEmail

F-Droid, Voyager, Eternity, Libretube

Obtainium is pretty good

Obsidian isn’t FOSS. I highly recommend Logseq but keep in mind they require CLA signing for contributions

Keyboard:

• AnySoftKeyboard good all around keyboard, good language support, decent though messy customizability
• Unexpected keyboard more specialized, provides easy access to app (printable) ASCII characters and some others, allrght customizability
• 8Vim Cool factor, great customizability, decent language support but you need to learn it

Games:

• Pirate Solitare nothing much but I’ve been playing it a lot lately
• Simon Tathman’s Puzzle Collection a cross platform puzzle collection, has a lot of different puzzles in a uniform style
• Antimine minesweeper with nice ui

System:

• RethinkDNS: DoH provider and firewall Easy to use, especially nice for those non FOSS apps you need to have to maintain a social life, not that powerful though
• Obtainium: FOSS app downloader Downloads apps from releases or equivalent, therefore can have faster updates than fdroid, but no discovery, aside from search on some platforms
• ffupdater: FOSS browser downloader Like obtainium, but for browsers (mostly) and has list of browsers
• Droid-ify: fdroid client better ui than the default app, comes with a list of repos
• Shizuku: ADB shell api not useful if you have root (see SUI, which is the root implementation for the same api, though shizuku will also work I think), but can give a bit more access if you don’t supports wireless debugging on A12+
• Neolauncher: launcher nice ui but nothing special
• SD Maid SE: storage cleaner okish ui, doesn’t stop me from having 302 (not including system) apps on my device. Yes I have a problem
• Package manager: app manager Shizuku support, powerful, though limited if you don’t have root
• Inure: app manager [freemium (8$), but GPL licensed?] pretty must like Package manager but with amazing ui

Media:

• LibreTube: Piped (youtube) client Nice ui, no ads, sponsor block support, kinda unstable
• Innertube: YouTube music client doesn’t use piped/invidious, no ads, nice ui
• Tusky: mastodon client nice ui, quite stable, multiuser support
• Jerboa: lemmy client ok ui, up to date with lemmy updates
• Liftoff: lemmy client nicer ui then Jerboa but doesn’t work since .15 (?) and had issues with rendering markdown properly
• LibreTorrent bitTorrent client for downloading all those isos and public domain works, nice ui

Misc:

• Mull: ff based browser not much to say, “security oriented and deblobbed”, upstreams some features from Tor
• Calculator++: A scientific calculator A lot of functionality while remaining easy to use
• RPNcalc: A Reverse Polish Notation calculator best RPN calculator I’ve found on fdroid, less powerful than Calculator++, but RPN based calculators are more efficient^[1]^
• Simple Apps: suit of apps providing basic functionality great ui and customizability, I don’t use simple keyboard, simple launcher/drawer however
• OpenCamera: a camera app advanced features

Just the apps I thought of, as I, as mentioned in the SD Maid entry, have a lot of apps installed :P

FeedMe (Not FOSS. Open to suggestions)

The RSS or meal planning app? If it’s the former I like Feeder. You can probably export and import all your feeds.

I think some of my favorites are LibreTorrent, Session, and NewPipe.

I am a big fan of open source engine recreations, even if I don’t play them a ton, so DevilutionX and OpenMW are worth mentioning. I think Xash3D is also open source if you want to play Half Life on the go.

I think OpenRCT2 has an Android app but I haven’t bothered figuring out how to set it up yet.