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 | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| 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 | ✅ | ✅ | ✅ | ✅ | ⚠ | ✅ | |
| Your app's version, and news of a newer one | ✅ | ⚠ | ⚠ | ⚠ | ⚠ |
Everyday
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| 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 | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Post to a room | ⚠ | ⚠ | ⚠ | ✅ | ⚠ | ✅ | |
| Private conversations | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| React to messages and delete your own | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Read your feed | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | ✅ | |
| Ready for new conversations | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ✅ |
| Replies, recipients and threads | ✅ | ⚠ | ✅ | ✅ | ⚠ | ⚠ | |
| Search | ✅ | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | |
| Search within a feed | ✅ | ✅ | ✅ | ⚠ | ✅ | ✅ | |
| Search your own mail and files, privately, on this device | — | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| See what is trending | ⚠ | ⚠ | ✅ | ✅ | ✅ | ⚠ | |
| See your formatting as you type | ✅ | ✅ | ✅ | ✅ | — | ||
| The app tells you what needs a connection | ⚠ | ⚠ | ✅ | ⚠ | ✅ | ⚠ | |
| Unfinished posts, messages and events survive a restart | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Unread count on your home screen | — | ⚠ | ⚠ | ⚠ | ⚠ | — | |
| Write a post | ✅ | ✅ | ✅ | ✅ | ⚠ | ✅ | |
| Your profile and other people's | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
Your data and devices
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| A copy of your identity in your cloud keychain | — | — | — | ⚠ | — | — | |
| A second identity in its own window | ✅ | ✅ | ✅ | ✅ | — | — | ✅ |
| Back up your photos | — | — | — | ✅ | — | ||
| Backup destinations and restore | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Backups: snapshots | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ✅ | |
| Choose which device does the heavy lifting | ✅ | ✅ | ✅ | ✅ | ⚠ | ✅ | |
| Connected apps | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Direct connections between your devices | — | ✅ | — | — | — | — | — |
| Export everything | ✅ | ✅ | ✅ | ✅ | ✅ | ⚠ | |
| Files move straight between your own devices | — | ⚠ | ⚠ | ⚠ | ⚠ | ||
| 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 | ✅ | ✅ | ✅ | ✅ | ⚠ | ⚠ | |
| Run a job on this device | — | ✅ | ✅ | ✅ | — | — | ✅ |
| Several identities in one app | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Share a folder in person, with no nest in between | — | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Share a folder with people | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Share a link to a file | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Start at login and close to tray | — | ⚠ | ✅ | ⚠ | — | — | — |
| Status, quotas and limits | ⚠ | ⚠ | ✅ | ✅ | ⚠ | ⚠ | |
| Take your account back | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| The app's own log | ⚠ | ✅ | ⚠ | ✅ | ✅ | ✅ | |
| Where you are signed in | ⚠ | ⚠ | ✅ | ✅ | ⚠ | ||
| Your account: handle, sign out, delete | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | ✅ | |
| Your devices | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Your identity encrypted with a passphrase | ⚠ | — | — | — | — | — | ❌ |
| Your identity is kept safe on this device | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ||
| Your nests and what each may read | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Your recovery kit | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
Mail, calendar and contacts
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| Bring your mail from another provider | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ||
| Mail aliases | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Mail filter rules | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Mailing lists | ✅ | ✅ | ⚠ | ✅ | ⚠ | ✅ | |
| Spam, your way | ⚠ | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | |
| Take your mailbox with you | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| 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 | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| AT Protocol | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Bring your posts from Facebook or Instagram | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
| Link other networks | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Nostr | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| The fediverse | ⚠ | ⚠ | ⚠ |
Money
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| Gated posts, sold posts and tips | ⚠ | ✅ | ⚠ | ⚠ | ✅ | ✅ | |
| Subscribe to creators; offer tiers of your own | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | ⚠ |
Family and personalization
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| Community labelers | ✅ | ✅ | ⚠ | ⚠ | ⚠ | ✅ | |
| Correct the classifier | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Learn from my activity | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Muted words | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Report a post, a message or an account | ✅ | ✅ | ⚠ | ⚠ | ⚠ | ✅ | |
| Supervised accounts for children | ✅ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
| Train your own topics | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ✅ |
Admin area
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| Aliases that forward outside | ✅ | ✅ | ⚠ | ✅ | ⚠ | ✅ | |
| Bridges: approve and rotate keys | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Calendar, Contacts and Files switches | ⚠ | ✅ | ⚠ | ⚠ | ⚠ | ✅ | |
| Domains, DNS records and certificates | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
| Factory reset and set up again | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Held custody | ✅ | ⚠ | ⚠ | ✅ | ⚠ | ✅ | |
| Logs | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Mail health at a glance | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Mail policy | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Members: requests, registration, invites and actions | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Nest: network mode, pairing, ports, updates, region, identity, sign-in keys and takedowns | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| The admin area | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | |
| Tiers and paid membership | ✅ | ⚠ | ⚠ | ⚠ | ⚠ | ✅ | |
| Web: whose site is the front page | ✅ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
Your nest
| Feature | Web | Linux | Windows | macOS | iOS | Android | Terminal |
|---|---|---|---|---|---|---|---|
| A home nest behind a public relay | |||||||
| Certificates, by themselves | ⚠your nest — the same on every app | ||||||
| DMARC reports are read for you, not mailed to you | ⚠ | ⚠ | ⚠ | ⚠ | |||
| 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 | ||||||
| Retire a nest | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ||
| TLS failure reports are read for you, not mailed to you | ⚠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 | ✅ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ | ⚠ |
Releases
| Version | Date | In production |
|---|---|---|
| 0.1.5 | 2026-10-23 | not yet |