Everything it does, in one place

Headings, quotes, bullets, numbered lists and links are parsed and styled as you write.

Bold, italic, underline, strikethrough, inline code, three heading levels, lists, quote, text colour, highlight, link, note link, table and divider.

Insert and edit tables, starting from a 2×2 grid.

Toggleable to-do rows, and a keyboard command to move a row up or down.

When you check an item: cross it out, sink it to the bottom of the list, or delete it outright. Your call, and it sticks.

Indent and outdent list items and quotes as you write.

Type two square brackets to open a note-and-folder picker and insert a link.

Type a forward slash to bring up the command menu without leaving the keyboard.

Seven-colour swatch on any note, so a glance down a list tells you what is what.

Speak instead of typing, transcribed on your device. The English voice model (about 44 MB) downloads once from huggingface.co; audio is not saved.

Choose whether a note opens with the cursor at the title or already in the body.

Folders inside folders, with room for deep nesting, with a breadcrumb back up.

Eleven tints, so a busy sidebar stays readable.

Pin notes and folders to the top, or star them into Favorites.

Restore a deleted note, delete one permanently, or empty the trash. There is a separate trash for scratchpad buffers.

The on-device AI decides which folder a new note belongs in and files it — no interruption.

Notes that have piled up unsorted get grouped into suggested folders with suggested names. You approve each one.

When a note has outgrown its folder, the app suggests a better one. It proposes; you decide.

Drag folders to reorder them, or drop one onto another to nest it.

A tabbed, encrypted notepad for things that are not notes yet, saving itself three seconds after you stop typing. Convert a buffer into a real note when it earns it.

Seven blocks — recent, all notes, scratchpad, favorites, pinned, folders, shortcuts — each reorderable or hideable.

Full-text search, including word stems and partial-word matching.

Semantic search over on-device embeddings, so approximate recall still finds the note.

Keyword and meaning-based results are fused into a single ranked list.

Narrow by date range, folder, or pinned-only, and toggle exact matching or meaning-only results.

Surface the notes closest to the one you are reading.

A chat panel that answers from your own notes using the on-device model.

A short summary per note, refreshed when the note changes. Anything you write yourself is left alone.

What is in this folder, in a sentence, updated as its notes change.

One tap to have a title proposed from the note. It is a button, not automatic — Prevon does not rename your titles for you.

The assistant can create, edit, file and delete notes — essentially anything you can do to a note, under the same permission rules. This is your local model acting on your vault, not a chat window.

Decide, for each kind of AI action, whether it may act, must ask first, or is blocked outright.

One note can be hidden from AI on its own — separately from AI overall.

For when sync is available: keep one note off the relay and purge any copy already there, so a single note can stay local while the rest sync.

A recent-actions list on your device, so an automatic change is not invisible.

Rate limiting, a tool-call depth cap and a circuit breaker for the local model — for people who want them.

Notes, attachments and the database are encrypted, so a copy of the vault files on its own is unreadable. Exceptions are listed in our security model: reminder and widget words (on by default, switchable off), a plaintext copy of note titles in metadata, the search-by-meaning cache, and a lecture recording until you next unlock.

In a Normal vault, a deliberately slow, memory-hard function turns your phrase into the key, so guessing is slow and costly. Key Chest vaults use a random key instead.

Shown once when you create your vault. We do not store it. If you lose it and have no backup, we cannot recover your notes.

Re-key the vault to a new recovery phrase whenever you want, without losing your notes.

One switch blocks the app’s outbound network connections, including local device transfer.

Biometric unlock, or a quick-unlock PIN. A PIN is the weaker option: someone who copies your phone’s secure-storage entries could test PINs offline, so prefer a long one. Biometric strength depends on your phone.

Lock the app about a minute after you switch away. The timer lives in the app, so it may not fire while the phone has suspended it.

Ask the OS to block screenshots and screen recordings on Android, iOS and Windows 10 or later (nothing on macOS or Linux). Screenshots stay allowed on the lock screen and the 12-word screens.

Sensitive copied text is cleared from the clipboard after 60 seconds by default; the timer cannot fire while the phone has suspended the app.

A deliberate two-step wipe, for when you want the vault gone from the device. Treat it as deletion, not forensic shredding.

No sign-up, and the app itself includes no analytics, ads or crash reporting. It does go online for AI model downloads from huggingface.co (Air-Gap Mode stops that); Android builds made by Google Play also carry Google’s own licence check.

Obsidian, Evernote, Apple Notes, Notion, Bear, Google Keep and plain text, with source auto-detection. Point it at a folder or a zip.

Run the import again after writing more in the old app and it updates what changed instead of duplicating everything.

The import report names the files it skipped and why, so a messy export doesn’t fail silently.

Transfer a whole encrypted vault to another device over your own local Wi-Fi, by QR or pairing code, without going through a cloud relay. This transfer path has not been audited.

Take a portable encrypted snapshot with you.

The 12 words are a way back in. Enter them on a new device together with a vault backup or transfer, and your notes are back. The phrase alone does not contain your notes, and in a Normal vault the words plus a copy of the files open everything.

Two themes, dark by default.

Eleven folder tints, seven note colours — colour as a personal index.

Reorder, hide, add and remove home blocks, and cap how many rows each one shows.

Reorder, show or hide sidebar items, and collapse the header.

Its shape, size, what a tap does, and how long a hold takes.

Choose which four shortcuts sit on your home screen.

Connector lines, indent depth, note icons and how long titles overflow — all tunable.

Separate sort orders for folders and notes.

Independent scrolling per home section, and per-section visibility.

Collapse the scratchpad down to just its header and tabs.

For everyone who reads 18:00 faster than 6pm.

A search box inside Settings that finds any row by name — forgiving of typos and half-remembered wording — and jumps straight to it.

Every single settings row has its own reset-to-default button.

Most rows carry a Learn more link that opens a plain-language explanation of exactly what it changes. A ? in the panel can show every one of them at once.

Choose which items sit on the home navigation bar, and in what order.

Drop a visual divider between sidebar items to break a long list into groups.

Turn the title header off any home block, for a quieter home screen.

Autocorrect can be turned off entirely, for anyone who types faster than it corrects.

Keep separate vaults and switch between them — a work vault and a personal one, each with its own key.

Reveal the deeper settings when you want them, and keep them out of the way when you do not.

iOS, macOS, Android, Windows and Linux are the release targets, with the same vault design. None has had an independent audit; our security model lists the iOS, macOS, Windows and Linux builds as unaudited.

Navigate back, save a note, and dismiss search from the keyboard.

An in-app title bar and window controls on desktop, so it feels like a desktop app rather than a phone app in a frame.

Devices find each other on your own network for transfer, without a cloud directory service.

Buttons, rows and controls carry spoken labels, including a search field that names TalkBack and VoiceOver directly.

When your system asks for less animation, the app cuts instead of animating.

Your system text size flows through the editor rather than being overridden.

A minimum tap-target size applied across the app.

Folder colours are decorative, so meaning is not carried by colour alone.