What works where

Fauna is one app on seven platforms and one small server. This page says, feature by feature, what has been proven to work on each of them — and it is not a promise page. Every mark below comes out of an actual test run: the run writes down what it saw, and this page is generated from that record.

That means it can tell you three different things, and the difference matters. A is a feature whose whole set of tests passed on that app. A is a partial result: some passed, some did not, or the feature is only partly covered by tests so far. A means tests exist and none of them passed. A blank is the honest one — it says no run has been recorded yet, which is a statement about our records and not about the software; the feature may work perfectly and simply not have been re-tested on that platform since we started keeping this record. A is different again: it means the feature is deliberately absent there, because the platform has no such thing.

We would rather show you a page with blanks in it than a page of green ticks we cannot back up.

Getting in

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Claim a fresh nest
Connect to your nest and sign in
Create your identity
Get the app
Join an existing nest
Recover a lost nest
Recovery kit at sign-up
Set up a nest in the cloud from the app
Use your identity on another device

Everyday

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Address book
Browse, upload and manage your files
Build your own feeds
Calendars and events
Contacts
Delete your own post
Email, in the same conversations
Files in conversations
Find a conversation
Format your messages
Group conversations
Images and video in posts
Know where a post came from
Like, reply, repost and quote
Link previews
Loud warnings when something is very wrong
Notifications
Private conversations
React to messages and delete your own
Read your feed
Replies, recipients and threads
Search
Search within a feed
Search your own mail and files, privately, on this device
See what is trending
The app tells you what needs a connection
Unfinished posts, messages and events survive a restart
Write a post
Your profile and other people's

Your data and devices

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
A second identity in its own window
Back up your photos
Backup destinations and restore
Backups: snapshots
Choose which device does the heavy lifting
Direct connections between your devices
Export everything
Files on demand
Folders
Follow someone's public folder
Keep a folder on your computer in sync
Make a folder public, or a website
Privacy: who can reach you, and your spam threshold
Publish to the web
Several identities in one app
Share a folder in person, with no nest in between
Share a folder with people
Start at login and close to tray
Status, quotas and limits
Take your account back
The app's own log
Your account: handle, sign out, delete
Your devices
Your nests and what each may read
Your recovery kit

Mail, calendar and contacts

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Mail aliases
Mail filter rules
Mailing lists
Spam, your way
Turn on mail for your account
Use a regular mail app
Your address book in standard contacts apps
Your calendar in Apple Calendar, Thunderbird and friends
Your folders as a network drive

Bridges and other networks

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Bluesky
Link other networks
Nostr
The fediverse

Money

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Gated posts, sold posts and tips
Subscribe to creators; offer tiers of your own

Family and personalization

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Community labelers
Correct the classifier
Learn from my activity
Muted words
Supervised accounts for children
Train your own topics

Admin area

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
Aliases that forward outside
Bridges: approve, rotate keys, sign-in key
Calendar, Contacts and Files switches
Domains, DNS records and certificates
Factory reset and set up again
Held custody
Logs
Mail policy
Members: requests, registration, invites and actions
Nest: network mode, pairing, ports, updates, region, identity and takedowns
The admin area
Tiers and paid membership
Web: whose site is the front page

Your nest

Feature WebLinuxWindowsmacOSiOSAndroidTerminal
A home nest behind a public relay
Certificates, by themselves your nest — the same on every app
Each part of the nest is walled off your nest — the same on every app
Mail from and to the outside world your nest — the same on every app
Upgrades never lose your data
Your mail server refuses abuse your nest — the same on every app
Your nest relays your devices' direct traffic your nest — the same on every app
Your nest serves the app your nest — the same on every app