Mnema
Canvas freedom. Knowledge graph power.
Screenshots
iOS
About
Mnema is your second brain on iPhone and iPad — combining an infinite canvas with a structured knowledge graph, all in one place.
Two document types. Board: infinite whiteboard with 18 canvas tools. Note: Apple Notes-style vertical page. Switch instantly.
CANVAS TOOLS (18)
Shapes, directional arrows, sticky notes, text, images, link preview cards, map embeds, table embeds. Free draw with PencilKit — or let auto-shape convert sketches to geometry automatically. Select, lasso, pan, erase, connect.
KNOWLEDGE GRAPH
Every object is a Mnem — atomic, linkable, typed. Connect Mnems with Threads using 17 typed relationship kinds: references · inspiredBy · continues · about · partOf · relatedTo · supports · extends · contradicts · summarizes · dependsOn · implements · causes · belongsTo · derivedFrom · createdBy · duplicates
6 OBJECT KINDS: Thought · Idea · Task · Person · Reference · Daily
Link inline with [[object name]] syntax or through typed field references (Capacities-style).
11 LENSES — same data, different projections, single source:
Canvas · Graph · Journal · Search · Timeline · Gallery · Table · Tasks · Collections · Research · Recent
LIBRARY
Grid and list views. Sidebar: All Works, Recents, Favorites. Thumbnail previews, multi-select, bulk actions, date grouping, sort by name or date.
SYNC & INFRASTRUCTURE
iCloud CloudKit private database — automatic cross-device sync. Fallback: CloudKit → Local SQLite → In-Memory. Share Extension for instant capture from any app. Widget support. App Group for instant Extension ↔ App access.
25+ LANGUAGES
Turkish, English, German, French, Spanish, Japanese, Korean, Chinese, Arabic, Russian, Portuguese, and more.
One place. Two modes. No compromise.
Highlights
- Infinite canvas Board + vertical Note page — two modes, one app
- 18 canvas tools: shapes, arrows, PencilKit drawing, sticky notes, link previews, maps, tables
- Auto-shape: freehand sketch converts to geometry automatically
- Knowledge graph: Mnems (atomic objects) connected by typed Threads
- 6 object kinds: Thought, Idea, Task, Person, Reference, Daily
- 17 relationship types: references, inspiredBy, causes, dependsOn, contradicts, and more
- Inline [[object name]] linking and typed field references
- 11 lenses: Canvas, Graph, Journal, Timeline, Gallery, Table, Tasks, Collections, Research, Recent, Search
- iCloud CloudKit private database sync with SQLite fallback
- Share Extension, Widget support, 25+ languages