# Tsunagi: 3D Linked Todos — Link related tasks in 3D space

> Link related tasks in 3D space (iPhone/iPad app by Koji Tamatsu.)

- Source: https://appshunter.io/ios/app/tsunagi-3d-linked-todos/id6816343492 (this page in markdown: same URL + `.md`)
- Developer: [Koji Tamatsu](https://appshunter.io/developer/6801192221)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: American English, Japanese
- Released: 2026-09-28
- Data updated: 2026-09-30

## What is Tsunagi?

A todo app for keeping the "these belong together" in your head exactly where it is.

In Tsunagi, todos aren't rows in a list. They are cards floating in a 3D space with real depth. Link related todos with glowing lines, and groups like travel, work, and home emerge like constellations. Orbit, zoom in, and pull back to see both the big picture and the connections at once.

PLACE TODOS IN 3D SPACE
- Drag with one finger to orbit, two fingers to move, pinch to zoom
- Nearby todos appear as cards, distant ones as glowing dots, with natural depth blur
- Drag a todo to move it around in space
- Show Everything frames every todo on screen
- Auto Arrange tidies a messy layout, cluster by cluster
- Tap the minimap to jump to a distant area

LINK RELATED TODOS
- Long-press a todo and drag to another to link them
- Release on empty space to add a new todo there, already linked
- The selected todo's links light up while others dim
- See linked todos as a list and as a small link map in the details

SET AN ORDER AND SEE WHAT'S NEXT
- Give a link a before/after order and the line shows an arrow
- When the earlier todo is done, the next one is marked Up next
- Todos still waiting on an earlier one are dimmed

NEVER MISS A DUE DATE
- Overdue, today, and soon-due todos are marked on their cards
- Turn on reminders in Settings to get a notification at a set time on the due date

LINK AS YOU ADD
- When adding with +, the todo's spot appears in space as a dashed outline
- Nearby or selected todos are suggested as links, so you can connect while adding

CLUSTERS AND SPACES
- Group todos into color-coded clusters (e.g. Travel, Work, Health, Home, Learning)
- See each cluster's todo count and progress, and tap it to list its todos
- List every todo in a space, grouped by cluster
- Create separate spaces for different purposes and switch between them

TODO ESSENTIALS
- Completion, stars, due dates, notes, and subtasks
- Search by keyword and jump to that todo in space
- Undo right after deleting
- Export a backup file and restore it, for example on a new iPhone
- Hide completed todos or lines, and adjust depth blur and line glow

On first launch, 24 sample todos show how links work. You can delete everything in Settings and build your own space from scratch.

No account, ads, purchases, analytics, or tracking. Your todos and links are stored only on your iPhone and work without an internet connection.

Privacy Policy: https://ko-ji-apps.com/en/tsunagi/privacy

## Is Tsunagi safe?

Not enough ratings yet to assess Tsunagi.

## Is Tsunagi legit?

Tsunagi: 3D Linked Todos appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Tsunagi is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-28

No release notes.

## More apps by Koji Tamatsu

- [Shiori Diary](https://appshunter.io/ios/app/shiori-diary/id6801804049)
- [MitsukeBox](https://appshunter.io/ios/app/mitsukebox/id6801959238)
- [WanderOrb](https://appshunter.io/ios/app/wanderorb/id6802169559)
- [Pause Before: Sleep on It](https://appshunter.io/ios/app/pause-before-sleep-on-it/id6802339620)
- [Nothing Happens](https://appshunter.io/ios/app/nothing-happens/id6802406654)
- [TODO List Table: Task Board](https://appshunter.io/ios/app/todo-list-table-task-board/id6804059458)

All apps by Koji Tamatsu: https://appshunter.io/developer/6801192221

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-30.*