Observed arrival · 2026-09-19

Nibomo, a flashcard app with an open-source spine

nibomo.app Visit website

Editorial interest 79/100 Selection signal · not a rating of the site

Nibomo is a free, open-source spaced-repetition app for creating and reviewing flashcards across web, iOS, and Android.

Landing page captured for the 2026-09-19 issue.

For: Students and self-directed learners building reusable study decks
Worth noticing: Its MCP server lets Claude, Cursor, or another MCP client read, create, and edit cards.

Field notes

Nibomo presents a cross-platform study workflow built around FSRS scheduling, with offline study, synchronization, exports, AI assistance, and self-hosting listed among its features. Its developer-facing edge is an MCP server that can connect Claude, Cursor, or another MCP client to card operations. The public activity section exposes aggregate counts and raw JSON while stating that it omits card content, email addresses, and individual study histories.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

⊠LoginAccess appeared gated

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

One card from the complete issue

Filed Under: Missing Tooth

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