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CLUSTER FLASHCARD-REPETITION-SCHEDULES · 10 ENTRIES · EARLIEST ENTRY 2026-03-04

Spaced-repetition flashcard apps

This cluster consists of spaced-repetition flashcard apps, primarily for iPhone, that import Anki decks and schedule reviews based on memory. The dated entries span from May 2010 to July 2026, with an early entry in 2010, a long gap, and several entries in 2025 and 2026. Traction is led by Anki, though all traction leaders show zero activity signal.

Entry timeline

ENTRY TIMELINE

MAY 2025: 1MAR 2026: 1MAY 2026: 1JUL 2026: 2SEP 2026: 2OCT 2026: 3
MAY 2025OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 9 unlabelled

Operator · 5 hobby · 1 indie · 4 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 10 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01engram5★9 days—hobbySelf-hosted flashcard service that schedules spaced repetition, supports multiple card types with Markdown and TeX, and enables multi-user deck sharing.
  2. 02Pace2★5 days—hobbymacOS spaced repetition flashcard app that schedules card reviews based on memory retention.
  3. 03Anki0★14 days—hobbySpaced-repetition flashcard app for iPhone that imports Anki decks and keeps all review data and media on the device.
  4. 04rappel-site0★23 days—ai-builthobbyFlashcard web app that imports decks from files, schedules reviews with spaced repetition, and keeps progress in the browser.
  5. 05Swiftflip Flashcards0★1 moliveFlashcard app that schedules reviews with spaced repetition, supports rich media, imports Anki decks, and syncs across Apple devices.
  6. 06JustFlip: Flashcards0★1 moliveFlashcard app for Apple devices that schedules reviews with spaced repetition and supports importing and exporting Anki and CSV decks.
  7. 07recall0★1 mo—hobbySelf-hosted flashcard app that schedules spaced repetition reviews and stores cards in a simple editable file.
  8. 08Truly Simple Flashcards0★1 moliveSpaced-repetition flashcard app that creates decks, imports existing card decks, and schedules reviews based on user recall.
  9. 09Carlo Flashcards0★5 moliveSpaced-repetition flashcard app that schedules reviews based on memory and imports decks from Anki.
  10. 10Flashcard: Spaced Repetition0★5 moliveindieFlashcard app using spaced repetition that schedules review sessions from user-created cards with text, images, and code snippets.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.