Index

A small place for the things in between.

Hirsla is an app for iPhone, iPad, and Mac that keeps door codes, claim numbers, and what you know about the people you meet. Share it in, ask for it later, and on the Mac, let Claude or ChatGPT ask for you.

Get it on the App StoreWhat’s new in 1.3

Works on iPhone, iPad, and Mac with iOS 26, iPadOS 26, or macOS 26. Best with Apple Intelligence. In 17 languages.

Hirsla on the Mac: the sidebar of card types, today’s cards, and an open voice memo side by side. Hirsla on iPhone: the Library, with today’s cards in one box, the newest a hand-drawn shop sign.
01

Too small for a note, too useful to lose.

The door code for the holiday flat. The parking level. The claim number on the letter you photographed on the kitchen table. Too small to deserve a folder, and exactly the things you go looking for at the worst moment.

  • Door code, holiday flat

    4471, key box left of the door

    3 facts · 4 Oct

  • Where the car is

    Level 3, row C, by the blue pillar

    1.8 MB · today

  • Claim number

    Read off the letter, with the date

    2 pages · 1 Oct

  • The place Marco mentioned

    Rosenweg 12, Old Town

    4 facts · 6 Oct

Hirsla in 48 seconds, without sound.

The film, in words: Save anything. Find it again. Share: tap, saved, nothing to name. Ask for it later: “Holiday flat door code?” gets the code and where the key box is. Every answer shows its proof: tap a number, the card opens, the words it used marked. People: what was his dog called? Juno, a vizsla, from your note in Elio’s thread. Write: it formats itself. Rummage: tidy up, for fun. Fleeting: some things are for now, and a card left unused for 30, 60, or 90 days tidies itself away. And all of this: voice memos from your wrist, handwriting found, facts pulled out, drawing by hand, scanning a document, flight mode, export everything, 30 days to change your mind, 17 languages, no account, no subscription. On iPhone, iPad, and Mac. Hirsla: share it, ask for it later.

The cards, notes, and answers on this page and in the film are sample data, not real data.

02How it works

Three beats, and you are done.

  1. The Add sheet: write a note, take a photo, record a voice memo, paste from the clipboard, or choose a file.

    01

    Share it.

    Tap Share in any app and pick Hirsla. Nothing to name, no folder to choose.

  2. A photo card with a written title, a short summary, and its facts and tags.

    02

    Your phone writes the card.

    A title, a short summary, and the details that matter: codes, addresses, deadlines.

  3. An answer with a small number after each sentence, and the numbered cards it came from underneath.

    03

    Ask for it later.

    Type or speak it in plain words. You get the answer and the cards it came from.

Every sentence shows where it came from.

Each sentence of an answer carries a small number. Tap it, and the card it came from opens with the passage marked. If nothing in your cards matches, Hirsla is built to say so instead of guessing.

The note behind the answer, with the sentence the answer used marked.
03People

What was his dog called?

New in 1.3

Hirsla now keeps what you know about people. Pick someone from Contacts, or just type a name, and they get a card of their own: one line about them, the few things you want at a glance, and a thread of everything about them, newest first. A personal CRM without the admin.

A person’s card on iPhone: Elio’s photo and name, Ask about Elio, Remember with his dog Juno and where you met, a suggested fact from your own note, In Contacts, and his thread by month.

Add to the thread as it happens: a line after a call, the photo from dinner, a voice memo on the way home. Any card in the Library can be marked as about someone, and it stays in the Library too. Hirsla suggests facts to remember only from your own words, shows where each came from, and keeps one when you tap Add.

A person’s card in the Mac window: Remember, In Contacts, the thread by month, and a field to add to it.

Ask about someone, and the answer comes from their thread, with the note it came from. Say “Note about Elio in Hirsla” to Siri, or start a voice memo on Apple Watch with “Note about Elio”, and it goes to his thread.

Contacts stays your address book. Hirsla reads only the contacts you allow, to show a person’s photo and open their contact card, and never changes Contacts. AI apps connected on the Mac cannot read People unless you allow it.

04Write where you read

Write where you read.

Tap or click into a note and write. Markdown turns into its format as you type: headings, lists, checklists, tables, and links. No edit view, no save button. Focus gives the note the whole screen.

Writing in a Hirsla note on iPhone: the cursor in a checklist, the format bar above the keyboard. Focus on iPhone: the note alone, the paragraph being written dark, the rest faded, Leave Focus at the top.
Writing on the Mac: a few words selected and the format bar above them, with bold, italic, lists, and links.

Or write it by hand.

Draw with Apple Pencil on iPad or a finger on iPhone. The handwriting is read on the device and becomes the card’s title and facts, so you find the drawing by what you wrote.

Drawing a card on iPad: a shop sign sketched by hand, with Apple’s drawing tools.
A drawing card on iPhone: a sketch of a shop sign, with the handwriting read as text and its facts below.
05Tidy up

Tidy up, for fun.

New in 1.2.1, released 9 November 2026

Rummage deals you your cards one at a time, the ones untouched longest first. Swipe right to keep, left to let go, or up to make a card fleeting. Undo takes back the last one, and a tally waits at the end. It works on iPhone, iPad, iPhone Duo, and the Mac, where the arrow keys sort too.

Rummage on iPhone: a card leaning right with a KEEP stamp, the next card waiting behind, three round keys below. A Hirsla row swiped to show Fleeting and Pin; other fleeting rows carry a small hourglass.

Some things are only for now. A fleeting card moves to Recently deleted by itself once you have not opened, changed, or used it for 90 days, and it can still be put back for 30 days after that. Choose 30, 60, or 90 days. A small hourglass marks it in the Library. Everything else in 1.2.1 is on What’s new.

06Your AI apps

Friendly to your AI, on your terms.

New in 1.2.2, on the Mac

Claude, ChatGPT, and other apps that speak MCP, the open standard AI apps use to reach tools, can use Hirsla on your Mac. They search your cards, read one, or ask Hirsla, which answers on your Mac with numbered sources. They add notes and links only if you allow it for that app. Nothing can change or delete a card, and Recently deleted, your backups, and Settings are out of reach.

Hirsla’s Settings on the Mac, Connections: AI apps switched on, Claude and ChatGPT listed as read only with Remove, and the activity of the last requests.

It is off until you turn it on in Settings › Connections, and a sheet first says what changes: what an AI app reads goes to that company, under its own privacy rules. Hirsla’s own AI stays on your Mac. Each app gets its own key, every request is listed on your Mac for 30 days, and one switch or Pause stops them all.

Claude installs in one click, ChatGPT takes three steps, and other apps copy a standard setup. Grok is not supported, because it only reaches servers on the internet, and Hirsla never opens your library to the internet. Not on iPhone or iPad. More on What’s new.

07On your Mac

On your Mac too.

The same app from the same App Store listing, with the same library through your own iCloud, and room bought on one device counts on all of them. The Mac adds ways in that work over any app: Control-Command-V keeps whatever you copied as a card, Control-Command-H opens a panel that finds and answers from your cards, anything you drag to the edge of the screen is kept as a copy, and a menu bar icon keeps the clipboard or starts a note.

On the Mac, a copied paragraph in Safari is kept with Control-Command-V; a small note under the menu bar says Kept, from Safari. The Hirsla panel over a letter in Pages: asked when the keys go back, it answers with numbered sources.

Every Mac feature, key by key, is on What’s new. Drawing, the camera and scanner, the widgets, and the Apple Watch app are not on the Mac.

08On iPad and iPhone Duo

More of it open, on iPad.

On iPad the list and the open card sit side by side, the answer opens next to its source, and anything you drop onto Hirsla is kept. On iPhone Duo, Hirsla uses the system’s own toolbar and tab bar.

Hirsla on iPad: the shelf of card types, the list of today’s cards, and an open voice memo side by side.
Hirsla on the closed iPhone Duo, with the bars on the side.
09Private by construction

No account. No analytics. No server of mine.

Stays on your device

  • Your cards, their text, their summaries, and their facts
  • Reading, search, and Ask, handwriting included, all on Apple’s on-device models
  • Voice memos, transcribed on your device once the speech model is installed
  • Deleted cards, recoverable for 30 days
  • Backups of your own library, with Restore Missing Cards if one goes astray

Leaves your device

  • Saving a link loads that page
  • A place is looked up in Apple Maps
  • Purchases go through Apple
  • iCloud sync goes through your own iCloud, and you can turn it off
  • A problem report you choose to send carries diagnostics and recent logs

Nothing goes to me or to an AI company, unless you choose to send feedback or a problem report, or let an AI app on your Mac read your cards.

No bars. Same app.

Offline, with aeroplane mode on the whole way through

  1. 01

    Save something, with no connection

    The card is saved before the sheet closes.

  2. 02

    The card is there

    Read on the phone, with its title and summary written.

  3. 03

    Ask, and it answers

    From your own cards, with the cards shown underneath.

Once Apple Intelligence is set up, your cards, search, and Ask work without a connection. Saving a new link needs one, to load the page.

In aeroplane mode, a new note is saved from the Add sheet. Still in aeroplane mode, the library shows the new card with its title and summary. Still in aeroplane mode, Ask answers from the cards and shows them underneath.
10What goes in

If you can share it, it fits.

  • Links
  • Text and notes
  • Places
  • Photos and scans
  • PDFs
  • Voice memos
  • Calendar files
  • Drawings
Apple Watch
Record a voice memo from your wrist
Widgets
Lock Screen and Control Centre actions
Map
Where you saved things, if you turn it on
Calendar events
Dates picked out, with a countdown

Voice, from the wrist

Record a memo on Apple Watch. It keeps recording with your wrist down and becomes a voice card on your iPhone.

Hirsla on Apple Watch: one record button and the latest memos.
Home: one button, and each memo shows whether it has reached the iPhone.
Recording on Apple Watch, with a stop button.
Recording: Stop saves in one tap, the close button discards.
11Price

Free to download, no ads, no subscription.

The first 100 cards are free. If you need more room, you buy it in packs, as often as you like, from +100 cards for $2.99 up to +5,000 for $49.99 (prices vary by country). Room adds up and does not expire.

Past 100, new items are still saved, and Hirsla reads them once there is room. Export is never locked.

12Best with Apple Intelligence

It works on iOS 26, iPadOS 26, and macOS 26.

The full experience, with written titles, summaries, and answers, needs Apple Intelligence on an iPhone 15 Pro or newer, an iPad with M1 or A17 Pro or newer, or a Mac with Apple silicon. Here is what changes without it.

With Apple Intelligence

Turned on, on a recent iPhone, iPad, or Mac

  • A written title and a short summary on every card
  • Facts pulled out: codes, addresses, deadlines, prices
  • Ask answers your question in a sentence, with its cards

Without it

Any other device on version 26

  • Still saves, finds, and keeps everything
  • Simpler titles and summaries
  • Ask shows the best cards with the sentence that answers
  • Cards are quietly read again in full if it arrives later

The app is in 17 languages, and Apple’s on-device model writes cards in any of the same 17. There is no Android version.

13Good tools, different job

It replaces nothing.

Notes is still where you write. Photos is still where your pictures live. A bookmark tool is still where you keep the long read for Sunday. Hirsla is for the things that never quite belong in any of them, and it is small on purpose. Keep what works.

14Why I built it

One finished small thing.

I am Niklaus. Hirsla is my first native app, built with a team of AI coding agents, one decision at a time. How that worked is on the Agents page.

I kept losing small things: a door code, a claim number, the restaurant a friend mentioned. Notes wanted me to file them. Bookmark tools wanted me to remember I had saved something. Other tools I tried wanted an account, a subscription, or a connection. I did not want a second brain. I wanted one finished small thing that does one job.

Hirsla is also the small version of a view I hold as a product leader: useful AI does not need your data on someone else’s server.

I would like to know what you lose most often: codes, receipts, or places? Tell me on LinkedIn

Niklaus

15Questions

The ones I would ask.

What if the AI gets it wrong?

It can. Every sentence of an answer is numbered to the card it came from, so you can check. If nothing matches, it is built to say “no answer”.

Does Hirsla work offline?

Yes. Once Apple Intelligence is set up, your cards, search, and Ask work without a connection, in aeroplane mode too. Saving a new link needs one, to load the page.

What happens at the limit?

Saving still works. New things are kept and read once there is room, in the order you saved them. Until then you find them by their title, file name, or link.

What if I get a new iPhone?

Your cards come with you through your own iCloud, with no account in between. Room is tied to your Apple ID and comes back by itself on the new phone. If it does not, write to me and I will sort it out.

Does it work on iPad and Mac?

Yes, natively, from one App Store listing. Your cards sync through your own iCloud, and room bought on one device counts on all of them. Drawing, the camera and scanner, the widgets, and the Apple Watch app are not on the Mac. There is no Android version.

Does Hirsla read my contacts?

Only the ones you allow. From version 1.3, you can make a card for someone by picking them in Apple’s contact picker. The first time Hirsla needs Contacts, to show a person’s photo or open their contact card, it asks once, for the contacts you allow. It only reads them and never changes Contacts.

Can Claude or ChatGPT use Hirsla?

On the Mac, if you turn it on. They can search and read your cards, and add notes and links only if you allow it. What they read goes to that company. Nothing can change or delete a card, and one switch stops them all.

Can I get my data out?

Yes, any time. Export everything writes Markdown files with your originals, and it is never locked behind a purchase. Hirsla also keeps backups, and Restore Missing Cards reads one back without overwriting anything.

Share it. Ask for it later.

Hirsla is on the App Store. The link opens it on your iPhone, iPad, or Mac.

Get it on the App Store

Apple Intelligence, Apple Pencil, Apple Watch, Apple Maps, App Store, iCloud, iPad, iPhone, Mac, and macOS are trademarks of Apple Inc. Hirsla is a private side project and has nothing to do with my employer.

Niklaus GerberDigital & Platform Executive

Twenty years making digital stick in organisations not built for it.

Vice President Digital at Vorwerk Home, responsible for product, platform, and e-commerce across Europe. Before that, I founded the product function at NZZ.

My work sits where digital ambition meets legacy platforms, many stakeholders, and teams that need a reason to change. At NZZ, we shipped AI audio in 2018, among the first publishers anywhere to do so.

Playground

I build tools when the thinking needs a shape. Lately that means hands-on work with agentic AI. Most start as a fix for my own team and then find a wider audience. Each one tests an idea before I put more weight on it.

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