Tsunagi
3D Linked Todos
A todo app for keeping the “these belong together” in your head exactly where it is. Todos float as cards in 3D space, and linking related ones with glowing lines turns groups into constellations.
Submitted to App Review. Not yet available to download.
Look around
Drag with one finger to orbit, two fingers to move, and pinch to zoom. Show Everything frames every todo on screen.
Place a todo
Tap + to add a todo. Its spot appears as a dashed outline, and nearby todos are suggested as links.
Link todos
Long-press a todo and drag to another to link them. Release on empty space to add a new, already linked todo there.
Zoom in to check
Tap a todo and the camera moves closer while its links light up. Details show notes, subtasks, due date, and linked todos.
Set an order
Open “…” next to a linked todo and choose Order. The line gets an arrow, and the todo to do next is marked Up next.
Tidy up, never miss
Top-right “…” → Auto Arrange tidies the layout by cluster. Todos due soon are marked, and you can turn on due date reminders in Settings.
Frequently asked questions
Can I remove the sample todos?
The 24 todos on first launch show how links work. Delete them individually, or use Settings → Delete All Data to start from an empty space.
How do I unlink todos?
In a todo’s details, open “…” next to a linked todo and choose Unlink.
I deleted something by mistake
Right after deleting a todo, cluster, or space, tap Undo in the notice that appears to bring it back.
Can I move a todo?
Zoom in until cards appear, then drag a todo to move it around in space.
Where is my data stored?
Your todos and links are stored only on your iPhone. There is no account and nothing is uploaded to a server. Deleting the app deletes its data.
Moving to a new iPhone?
Use Settings → Export Backup to save a file, then choose Restore from Backup on the new iPhone.
Which iPhones are supported?
Tsunagi supports iPhones running iOS 17 or later.