Every release, with dates and details. Inkiostro is actively developed: version 1.10.0 is with Apple for review, and 1.0 for Android shipped on 1 September 2026. That is 21 releases since the first one in September 2025.
The preview had eleven styles. It has twenty-seven now, and the sixteen new ones are not sixteen more colour schemes: they change how the page is set — justified text with indented paragraphs, numbered headings, a drop cap, monospaced double spacing. The eleven you already had are still there and still free.
Reading
Twenty-seven preview styles. Six of the new ones are typographic rather than chromatic: Manuscript justifies and indents like a novel, Report numbers your headings so a document can be cited by section, Typewriter is monospaced and double-spaced, Book centres chapter titles and drops a large initial into the first paragraph.
Eight more are named after app themes you may already own — Dracula, Tokyo Night, Gruvbox, One Dark, Catppuccin, Rosé Pine, Monokai, Ayu — because if you bought Pro for the Dracula theme, the page should be Dracula too.
Style, font, size, line spacing, column width and justification now live in one panel. The font is the one you could not touch before: the preview simply borrowed the editor’s.
What you choose stays chosen. Pick Sepia at 130% and it is still Sepia at 130% tomorrow; it used to reset every time a document opened.
The preview styles are chosen the way app themes are chosen — palette swatches, sections, the same list — instead of a drop-down menu of names.
The PDF has a page
Paper size and orientation, so a Letter printer gets a Letter page. It was A4 and nothing else.
Headers with the document title, page numbers that count, a table of contents, and the author and title written inside the file where Spotlight can find them.
Three of the switches in the export panel used to do nothing at all: you set them, and they were thrown away.
Page breaks break pages. The command has been in the editor since 1.8 — in the preview it drew a dashed line, and in the exported PDF it did nothing whatsoever.
Command-P prints the document. It used to print the source: hashes, asterisks, the pipes of your tables.
Getting it out
Export a whole folder in one go on the Mac: pick the folder, the format and where it should land.
RTF, for whoever has to hand the thing to Word.
An exported HTML file carries both colour schemes and follows the light or dark setting of whoever opens it, with a link beside every heading so you can point someone at a paragraph.
An EPUB no longer claims Inkiostro as its author. It uses the author from the document’s front matter, or the name you set once in Settings.
Fixed
With two documents open for reading, the bar at the top came out twice. Every open tab was adding its buttons to it, visible or not.
A heading written the underlined way — a title with === on the line below — was treated as a page break and turned into a stray paragraph.
On iPhone and iPad, page breaks written on the Mac were invisible: neither the line in the preview nor the break in the PDF.
Version 1.0 Latest
·Android
Inkiostro arrives on Android, drawn for the tablet first
A native Android app, not a port of the web preview or a wrapper around the iOS one: Kotlin and Jetpack Compose, with an editor built on the platform’s own text view so that typing in a long document stays instant. On a tablet the file list, the editor and the live preview sit side by side; on a foldable the layout follows the hinge; on a phone it folds down to one pane. Your documents are ordinary .md files in a folder you choose — there is no library to import into and no account to create.
Built for the large screen
Three panes at once on tablets and in desktop modes, with dividers you can drag; two on a foldable; one on a phone, with the formatting island floating above the keyboard.
Nothing is locked to an orientation and nothing refuses to be resized, so Samsung DeX, Chromebooks and free-form windows behave like the desktop they are.
Hardware keyboard shortcuts, right-click menus, hover states and a real pointer cursor.
Your files stay files
You pick a folder on first run — internal storage, an SD card, a USB drive — and Inkiostro writes .md files into it and nothing else.
Unlimited documents and folders, with tags and colour labels kept alongside your text rather than inside it.
Import, and opening a .md file shared from another app.
Everything you write with
Live preview with the same engine as the Mac and iPhone versions, in 11 styles, all free.
LaTeX/KaTeX maths and Mermaid diagrams, rendered live and exported as text rather than as pictures of text.
PDF export — free — with margins, a title, a header, a footer and page numbers. Without Pro the pages carry a small credit line at the bottom; everything else is identical.
20 reading fonts bundled with the app, 29 themes, a document outline, tabs, a command palette, find and replace, statistics and a daily writing goal.
Version history with a word-by-word diff and single-block restore, plus focus and typewriter modes, with Pro.
What it does not do
No sync yet: the Apple versions use iCloud, which Android cannot reach, and Google Drive is planned for a later version. Until then your documents live in your folder.
No analytics and no telemetry of any kind — not even anonymous — no ads, no trackers, and no account to create.
Pro is a single purchase, never a subscription: no renewal, no account, nothing to cancel.
Version 1.9.0
·iPhone, iPad & Mac
Your iPhone opens documents to read them
A phone is where you catch up on something you wrote, not where you sit down to write it. Until now Inkiostro treated it like a small desk: every document opened straight into the editor, keyboard up, formatting bar in place. Now it opens as a page. Writing is one tap away, and if you would rather it opened in the editor, you say so once and it stops asking.
Reading on iPhone
Documents open as pages, laid out and readable, instead of as an editor with the keyboard already up. The Write button is where your thumb already is.
Unless you would rather write: Settings › Open documents in › Editing. Your iPhone and your iPad remember it separately, so the iPad can stay on Editing while the phone opens things to read.
The bar along the bottom changed job to match: Write, Find, Outline, History, Share — the five things you actually do with a document in your hand. Word counts and undo come straight back the moment you start writing.
Sharing is two taps: Share, then the format. PDF, HTML or EPUB.
Find works on the page you are reading, not on the Markdown behind it. Matches light up where they sit, and after the last one it starts again from the first.
Version history has its own button, with the number of saved versions on it. It was the strongest thing in the app and the only invisible one.
Coming back to a document
What you opened last is at the top of the file list, on iPhone, iPad and Mac. Coming back to yesterday’s document no longer means walking down three folders again.
Turn it off in Settings if you would rather start at your folders.
Files › Open in Inkiostro used to do nothing at all on iPhone. It now opens the document and edits the original file where it lives. The same was true of Open External File in the sidebar menu.
iPad
Links, images, lists, tables and block quotes all have keyboard shortcuts now, and so do the outline and version history.
The system’s undo-and-paste strip above the keyboard is gone — its buttons were already in ours — which gives the text about fifty points back. In landscape you notice.
The outline and the statistics sit beside the text instead of covering it. Jumping to five headings no longer means opening and closing a panel five times.
Lighter on the eyes
Four of the six colours used to be brown: the background, the text and the borders as well as the accent. The brown is the accent now, and nothing else.
Heading marks in the editor are no longer painted in the brand colour either, and the page you write on always stays paper, whichever theme you are using.
Secondary text adapts to light and dark instead of being one fixed colour that was too dim on a dark background.
Mac
Recent documents have their own section in the sidebar.
Opening a file from the Finder no longer starts the app with the file list squeezed against the text.
Version 1.8.1
·iPhone, iPad & Mac
Version history you can search
You remember writing a sentence — about a character, a decision, a name — and you remember deleting it. Until now the only way back was opening versions one at a time until you got lucky. Now you type the phrase and the history tells you which versions contain it, shows you the line in each one, and tells you the day it disappeared.
Version history
Search your whole history for a phrase. Inkiostro finds the versions that had it, shows you the line in each, and tells you the day it vanished.
Comparisons are down to the word. Change one sentence inside a long paragraph and only what actually changed is highlighted, inside the line, instead of a wall of red beside a wall of green.
Name a version and keep it. Call one “sent to my editor” and it stops ageing out — it stays as long as the document does, while everything around it prunes itself as usual.
Put any two versions side by side, not just a version against what you have today. Last Tuesday against last month, if that is the question.
A line across the top of the history shows the document growing over time. It is the fastest way to find the day something big happened — the afternoon a chapter went in, or the morning it came out.
Long documents no longer defeat the comparison. Past roughly two thousand lines the old one gave up and showed the whole document as deleted and rewritten, which is worse than useless on exactly the files that matter most.
Keeping it, or taking it with you
Your history can leave. Export it as a folder with one file per version, or as a single document with the versions one after another. It is the answer to a fair question: what happens to all this if I stop using the app.
A panel of its own in Settings. It shows how much space your history takes and across how many documents, lets you choose how long versions are kept, turns the word-by-word comparison off if you would rather see whole lines, and can delete every history at once if you want the space back.
On Mac the history window is where the work happens: search at the top of the list — ⌘F gets you there — the timeline above it, and the comparison beside it, in a window wide enough to read.
Version 1.8.0
·iPhone, iPad & Mac
Version history that gives back a single paragraph
Version history used to offer one thing: put the whole document back the way it was. That is the right tool for a disaster and the wrong one for a Tuesday, when what you want is the paragraph you deleted this morning. Now the history shows your changes one at a time, and each one has its own button.
Version history
Restore one change at a time: the history splits the difference between a version and your document into individual changes, each with its own button. Bring back the deleted paragraph, undo the rewrite, and everything you did afterwards stays exactly where it is.
Restoring is no longer a one-way door. Before anything is replaced, what you have right now is saved as a version — so if you bring back the wrong paragraph, the one you had is a tap away.
Versions follow the document. Rename it, move it to another folder, or let the app name it from your first heading: the history comes along. Before, it silently started over.
Versions are grouped by day and each says how much it changed before you open it. The unchanged text between one change and the next is folded away, because in a comparison what matters is what moved.
The count is visible while you write: a small clock in the editor tells you how many versions you have. It was the strongest thing in the app and nobody knew it was there.
On Mac the comparison window resizes, and you can walk the list with the arrow keys.
Writing
Tables, rebuilt. Pick the size by dragging across a grid instead of tapping two counters, and the table arrives with real headings in place. Tab moves cell to cell and adds a row at the end, the columns realign as you type, and a Table menu adds or removes rows and columns and sets each column’s alignment.
The same table engine on Mac, iPhone and iPad, so a table built on one reads right on the other.
Formatting floats right above the keyboard on iPhone and iPad, where your thumbs already are. Settings › Editor › Formatting Bar puts the old fixed bar back.
On Mac the floating toolbar fits any window width and quietly hides while you type, coming back the moment you reach for the mouse. It stays with you in full screen too.
Getting text in
Inkiostro is in the iOS share sheet. Share a thought from Notes, a paragraph from a web page or a line from a scratchpad, and it becomes a document with the title already filled in and the text ready to edit.
On Mac it is in the Services menu: select text anywhere, right-click › Services › New Inkiostro Document, and it lands here named after its first line.
Under the surface
Steadier on iCloud. Every read, save, rename, move, delete and import now announces itself to iCloud and waits its turn. Fewer documents that vanish for a moment, and no more quiet overwrites while a file is syncing.
Inkiostro finally wears its own colours — the warm sand of the app’s name, instead of the green it inherited from Lettera. If you preferred the green: Settings › Theme › Lettera Classic.
Menus and buttons have been read through in all fourteen languages. A few of them said things nobody meant — in German the app offered to sell you a share instead of sharing your document.
Version 1.7.3
·iPhone, iPad & Mac
Start writing, not naming
A corrective release. Creating a document used to begin with a question — what do you want to call it? — which is the wrong question at the wrong moment. New documents now open instantly and name themselves from your first heading.
Creating and naming
A new document opens straight away, ready to type in. Inkiostro takes the real name from your first heading: write “# Meeting notes” and the document is called Meeting notes. Rename it yourself and Inkiostro stops guessing.
“New document” is a proper button with a label at the bottom of your library, instead of a small “+” in a corner.
Renaming a document while it was open left the tab pointing at a file that no longer existed, so reopening it gave you the same document twice. Tags, colours and per-document fonts were left behind on the old name. Both fixed, including for folders containing open documents.
The editor
On iPad some documents opened completely flat — no headings, no bold, no links — until you started typing. Formatting now appears the moment a document opens and survives rotation, Split View and Stage Manager, across the whole document rather than just the visible part.
A table of contents on iPhone and iPad: every heading in the document, tap to jump, with the heading you are writing in highlighted. It used to be Mac-only.
Return inside a nested list kept dropping the new item back to the left margin. It now keeps the indentation.
Tab from the last cell of a table jumped into the next table further down the document; it now adds a row to the table you are in. Adding a row no longer produces one column too many.
Selecting several lines and pressing “bullet list”, “quote” or a heading level changed only the first one. It now changes all of them, and pressing again turns them all back.
Library and exports
“Group by tag” was a menu entry that did nothing on Mac. It now groups your documents by tag, with untagged ones in their own group at the end.
Filtering by tag used to hide folders as well as documents, which emptied the sidebar. Folders now stay visible.
EPUB: images were referenced but never included, so an exported book opened with no pictures and nothing said so. Images now travel inside the file, and documents with maths and diagrams pass validation.
HTML: an exported file said it used Lexend but did not carry it, so on someone else’s computer it silently arrived in a different typeface. The font now travels inside the file.
Documents containing Mermaid diagrams no longer mis-measure their own outline, so jumping to a heading lands where it says it will.
Version 1.7.0
·iPhone, iPad & Mac
A real Mac app, not a Catalyst build
The Mac version stopped being an iPad app in a window. It moved to its own project and became a native macOS app, sharing the document format and iCloud container with iPhone and iPad but built for the Mac.
Mac
Native macOS app, split out of the iOS project — Mac Catalyst was removed in 1.6.1.
The Mac app ships from its own codebase and tracks the same version numbers as iPhone and iPad from here on.
Version 1.6.0
·iPhone & iPad
Lettera becomes Inkiostro
The rebrand: the app changed its name, and the editor was rebuilt on TextKit 2 to fix the delays that showed up in long documents.
This release
Renamed from Lettera to Inkiostro, with new App Store metadata.
The editor moved to TextKit 2. Syntax highlighting is now immediate — headings no longer lag behind what you type.
Zen mode, and a warning before opening a very large document.
Toolbar fixes on iPhone.
Version 1.5.1
·iPhone & iPad
Preview, themes and line numbers
A round of work on how a document looks while you read it back.
This release
Paragraph and heading spacing in the preview is configurable.
Work on preview scrolling and themes.
A toggle for line numbers in the editor.
Version 1.0
·iPhone & iPad
The first release, as Lettera
The app arrived on the App Store under its original name: a native Markdown editor with a live preview, iCloud storage and export to PDF.
What shipped
Markdown editor with live preview and syntax highlighting for fenced code.
Document library with folders, import, search, and find & replace.
iCloud storage, with a local fallback, and autosave.
PDF export and printing.
Custom fonts and settings.
Localised at launch, with in-app purchases for the Pro features.
Earlier releases
These shipped too. They pre-date the point where we started keeping written release notes, and rather than describe them from memory we list them as they are: a version number and the day it went to review.
