Make an app
Make a flashcard and study app for iPhone
Flashcards work when the app shows you the cards you're about to forget. Describe your subjects and Borel builds a native iPhone study app in Swift: decks of cards, a review that spaces them out by how well you knew each one, cards written by AI from your notes, and a chart of what you've learned.
Updated
“A flashcard study app: I make decks with cards that have a front and a back. Review shows one card at a time; I flip it and tap Again, Hard, Good or Easy, and the app schedules the card further away the better I knew it. Let me paste my notes and have AI suggest cards. Show cards due today per deck.”
Screens
What a flashcards app needs
The screens Borel builds from the prompt above. Ask for more, fewer or different ones.
Decks
Each deck with how many cards are due today and how many are new.
Review
One card, a tap to flip, then four buttons for how well you knew it.
Edit deck
Cards in a list, with a field to paste notes and turn them into cards.
Progress
Reviews per day and cards you know well, deck by deck.
Data
What it keeps
Borel writes these as Swift models. On the phone they work with no connection; in Borel's cloud they follow a signed-in person.
| What | Holds | Kept |
|---|---|---|
| Deck | Name, colour, daily new-card limit | On the phone, with SwiftData |
| Card | Front, back, next review date, interval, ease | On the phone, with the deck |
| Review | Card, date, answer given | On the phone, with SwiftData |
Native iPhone features
What it can use on your iPhone
Written in Swift with Apple's own frameworks, so they work the way iPhone owners expect.
Make it yours
What to ask for next
Once the first version runs, ask for changes in the chat, in words like these.
- “Let me add a picture to the front of a card.”
- “Add a typing mode where I write the answer before flipping.”
- “Remind me at 7 pm when cards are due.”
- “Read the front of each card out loud.”
How to make it
From a prompt to your iPhone and the App Store
- 1
Describe it
Paste the prompt on this page into Borel, or write your own in plain words. Borel plans the screens with you before it builds.
- 2
Try it in your browser
Borel writes the app in Swift and SwiftUI, builds it with Xcode on its own Mac and opens it in a live iPhone simulator in your browser, free.
- 3
Put it on your iPhone
With Pro, Borel Companion for Windows or Mac installs it on your own iPhone with your Apple ID: a cable the first time, then Wi-Fi.
- 4
Publish it when it's ready
Pro publishes to the App Store from the same project. Apple's Developer Program, $99 a year, is the one thing you pay Apple.
Do a real review session on your iPhone, on a bus or in a queue. Check that the four answer buttons are easy to hit with a thumb, that flipping is instant, and that tomorrow's due count looks right after you finish. Scanning a page needs the phone's camera.
Teachers and tutors can publish a deck app for their students. With Borel's cloud, decks you write once reach everyone who signs in, and In-app purchases can unlock extra decks.
Building starts free, with 5 free credits a day, up to 30 a month, and the simulator in your browser costs nothing. Pro, from $20 a month, adds installs on your own iPhone through Borel Companion and publishing to the App Store.
Before you start
Good to know
- It doesn't import Anki deck files; cards come from typing, pasting, scanning or AI.
- AI-made cards need a connection and the app's AI switch; reviewing works offline.
Frequently asked questions
Yes. Describe how cards should come back, for example sooner after Again and later after Easy, and Borel writes the scheduling in Swift.
Yes. Borel can add a button that sends your notes to Borel's AI and returns cards for you to keep, edit or delete. No API key is needed.
Yes. Decks and reviews are saved on your iPhone. Only making cards with AI needs a connection.
Yes, with accounts in Borel's cloud and the app on the App Store for them, decks can be shared through an invite code.
Make your flashcards app
Start from the prompt on this page, change it to fit your idea, and Borel builds it while you watch.