FlipFlash

August 9, 2026 · View on GitHub

FlipFlash is a Flipper Zero flashcard app that reads flashcards from a text file and support removing cards from the deck. Useful for e.g., leaning language, I guess?

Screenshots

Deck format

The flashcard deck files are stored on the Flipper at /ext/apps_data/flipflash/flashcardFile.txt. It supports adding self-defined text (.txt) files, just upload directly to the folder.

Each card uses one line in the form:

front|back

Blank lines and lines starting with # are ignored.

Example:

hola|hello
adios|goodbye

Note that the maximum of flashcards a text file can have is 128, any cards outside of this limit will not be read.

Sample decks

On first launch, FlipFlash creates two small Spanish test decks (spanish_words.txt and spanish_verbs.txt) automatically if the deck file does not exist.

State storage

The app stores the current mode and removed-card list for each of the flashcard file in:

/ext/apps_data/flipflash/flashcardFile.state

Controls

OK: Flip front/back, then advance to the next card when the back is shown.
RIGHT: Go to the next card.
UP: Open settings.
DOWN: Remove the current card.
BACK: Cancel, return to previous screen or exit the app.

Settings

Order: Toggles the order folloing which flashcards are shown (in order or random).
Reset current deck: Add all removed cards back to the deck, set the order to in order, and start from the beginning of the deck.
Deck: Choose the deck. Note that the first time a flashcard deck is loaded, the screen automatically return to showing the cards, otherwise, it stays at the menu page.
Help: Show help page.
Back to deck: Return back to the flashcard page.

uv sync

c). Build

uv run ufbt

The .fap file is stored at dist/, simply upload it to app/tools folder.

Or run

uv run ufbt launch

Whe a flipper zero is connected, it will automatically install.

2. Install directly ufbt

a). Install ufbt

python3 -m pip install --upgrade ufbt

b). Build

ufbt