Applications by function

This is a list of applications, according to their function or the service they connect to. The goal of this page is to make it easier for users switching from other mobile operating systems to find replacements for the apps they often use (a "rosetta stone" of sorts).

Common apps

App/service	GNOME	KDE/Kirigami	Others
App store	GNOME Software Website • gnome-software	Discover Website • discover
Calculator	Calculator Website • gnome-calculator	Kalk Website • kalk
Calendar	Calendar gnome-calendar (Does not fit well on all devices) karlender karlender	Calindori Website • calindori
Camera	Snapshot Website • snapshot	Plasma Camera Website • plasma-camera	Megapixels Website • megapixels
Clock (alarm, timer, stopwatch, world clock)	Clocks Website • gnome-clocks	Clock (kclock) Website • kclock	Birdie Website • (GTK3; alarm; not packaged)
Contacts	Contacts Website • gnome-contacts	Phonebook Website • plasma-phonebook
Dialer/Phone	Calls Website • gnome-calls	Phone (plasma-dialer) Website • plasma-dialer
E-mail	Geary geary
Files	Files/Nautilus Website • nautilus Portfolio Website • portfolio	Index Website • index (Mauikit)
Gallery	Fotema Website • Fotema^Flathub	Photos (Koko) Website • koko
Maps	Maps Website • gnome-maps		osmin Website • osmin (Qt/custom) Mepo Website • mepo (SDL2/custom)
Messages/SMS	Chatty Website • chatty (Also Matrix, XMPP)	Spacebar Website • spacebar
Music player	Lollypop Website • lollypop	Elisa Website • elisa Vvave Website • vvave (Mauikit)
Notes	GNOME Notes Website • gnome-notes (GTK3) Iotas Website • Iotas^Flathub	Buho Website • buho (Mauikit)	Notejot Website • Notejot^Flathub (GTK4 w/ custom style)
Video player	Livi Website • livi Clapper Website • clapper
Weather	Weather Website • gnome-weather	KWeather Website • kweather
Web browser	Web/Epiphany Website • epiphany	Angelfish Website • angelfish	Firefox firefox

Common tasks

App/service	GNOME	KDE/Kirigami	Others
Audio recorder	Sound Recorder gnome-sound-recorder	Recorder (krecorder) Website • krecorder
Audiobook library	Cozy Website • cozy
Authenticator/TOTP	Authenticator Website • gnome-authenticator Numberstation Website • numberstation (GTK3)	Keysmith Website • keysmith
Comic book reader	Kommikku Website • Kommikku^Flathub	Peruse Website • peruse
Feed reader (RSS)	Feeds Website • gnome-feeds	Alligator Website • alligator
E-book reader	Foliate Foliate^Flathub
Fitness tracker	Jogger Website • Jogger^Flathub
Internet radio	Shortwave Website • shortwave
PDF reader/Document Viewer	Evince Website • evince (minor problems on mobile)	Okular Website • okular-mobile	pidif Website • pidif corepdf Website • corepdf
Podcasts	Podcasts Website • gnome-podcasts	Kasts Website • kasts
QR code scanner	Megapixels Website • megapixels (Camera app with QR code scanning support) Decoder Website • Decoder^Flathub
Quick file transfer over WiFi	Warp Website • (Wormhole protocol)		Warpinator Website • warpinator (Custom protocol, Android/Windows apps available)
Train timetable	Railway Website • Railway^Flathub	KTrip Website • ktrip
Web apps browser	Tangram Website • tangram

Social media and messengers

Free and decentralized

App/service	GNOME	KDE/Kirigami	Others	Mobile site?
Lemmy				Y
Mastodon	Tuba Website • tuba	Tokodon Website • tokodon		Y
Matrix	Fractal Website • fractal Chatty Website • chatty (Also SMS, XMPP)	NeoChat Website • neochat	FluffyChat Website • fluffychat (Flutter)	-
XMPP	Chatty Website • chatty (Also Matrix, SMS)	Kaidan Website • kaidan		-

Centralized, but with good client support

App/service	GNOME	KDE/Kirigami	Others	Mobile site?
Signal	Flare Website • flare			N

Non-free

Most of these do not have a client API, and do not align with postmarketOS principles. For the ones with a mobile site (see "Mobile site?" column), you may be able to use a web app browser like Tangram to use them similarily to a native app.

App/service	GNOME	Mobile site?	Free alternatives
Discord 🚩	This platform does not have a client API.	N	Matrix or Revolt
Reddit 🚩	This platform does not have a client API.	P	Lemmy or Kbin
TikTok 🚩	This platform does not have a client API.	N	N
Tumblr 🚩		Y
Twitter 🚩	This platform does not have a client API.	Y	Mastodon
WhatsApp 🚩	This platform does not have a client API.	Y

Unofficial clients for apps with no official client API

There exist unofficial clients for a few of the apps mentioned above (most notably Discord); however, they are usually against the ToS of these services, and may get your account banned. For this reason, they are not included in this table. Consider switching to a free alternative, or research at your own risk.

Multimedia services (videos, music streaming...)

Free and decentralized

App/service	GNOME	KDE/Kirigami	Others	Mobile site?
PeerTube	Pipeline Website • pipeline (Also YouTube)	PlasmaTube Website • plasmatube (Also Youtube)		Y

Proprietary

App/service	GNOME	KDE/Kirigami	Others	Mobile site?	Free alternatives
YouTube 🚩	Pipeline Website • pipeline (Also PeerTube) DewDuct Website • dewduct	PlasmaTube Website • plasmatube	FreeTube Website • freetube (Electron)	Y	PeerTube
Spotify 🚩 (clients require a Premium subscription)	Spot Website • spot
YouTube Music 🚩	Muzika Website • (No release yet, nightly flatpak available) Monophony Monophony^Flathub	AudioTube Website • audiotube

Games

App/service	GNOME	Others
2048	GNOME 2048 Website • gnome-2048
Candy Crush		Animatch Website • animatch
Wordle	Blurble Website • Blurble^Flathub