My CheckBox - Todo Calendar app icon

My CheckBox - Todo Calendar for iPhone Duo

jang sehoon · Listed Oct 11 · Checked Oct 23

A hand-drawn to-do calendar with calendar and tasks side by side when open

Does My CheckBox - Todo Calendar work on iPhone Duo?

Yes. My CheckBox - Todo Calendar's App Store page says it supports iPhone Duo, so the update is out. FoldHunt's editor hasn't seen it running yet.

  • App Store confirmedThe developer, in the release notes for version 1.79 (released October 10, 2026), which say that on iPhone Duo the app uses the full unfolded display, with the calendar and tasks side by side, and returns to one column when folded. There are no pictures of it on the Duo yet. The App Store seller is jang sehoon (id 480677477).
View on the App Store

Tell me when it's confirmed

My CheckBox - Todo Calendar is a claim for now. Get one email when we confirm it on iPhone Duo, and nothing else.

Adapted for the fold

We're waiting on details of exactly what My CheckBox - Todo Calendar changes for the fold. Are you the developer? Tell us.

About My CheckBox - Todo Calendar

My CheckBox is a simple to-do calendar with a hand-drawn, paper-diary look: write a task on a day and check it off. Version 1.79 uses the whole unfolded Duo, the release notes say, with the calendar and the tasks side by side, and goes back to a single column when folded. There are no pictures of it on the Duo yet.

Evidence reviews

What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.

  1. · App Store page reviewed

    App Store confirmed · iphone-duo

    The App Store release notes for version 1.79 (released October 10, 2026) mention iPhone Duo: "On iPhone Duo, the app now uses the full unfolded display."

    App version: 1.79.

    Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.

    View reviewed evidence ↗

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Sources: My CheckBox - Todo Calendar on the App Store (apps.apple.com)