Just Split: AI Bill Splitter app icon

Just Split: AI Bill Splitter for iPhone Duo

On World Tech LLC · Listed Oct 9 · Checked Oct 10

Bill splitter with the bill on one page and the people on the other

Does Just Split: AI Bill Splitter work on iPhone Duo?

Yes, the developer says so: the App Store description and the notes for version 2.3 describe its iPhone Duo layout.

  • Developer claimedThe App Store description: "On iPhone Duo, unfold it and the bill sits on one page with the people who shared it on the other." It lists the Duo layouts held upright and half-folded, and the release notes for version 2.3 (released October 7, 2026) also mention the Duo.
View on the App Store

Tell me when it's confirmed

Just Split: AI Bill Splitter is a claim for now. Get one email when we confirm it on iPhone Duo, and nothing else.

Adapted for the fold

  • Open · Inner display

    Bill on one page, people on the other

    Open, the bill sits on one half and the people who shared it on the other; tap an unplaced item on the people page and it opens on the bill's page, according to the developer. Held upright, the same pages sit above and below the fold.

  • Book · Partly folded

    A page each side of the crease

    Half-folded, each page sits on its own side of the crease with the app's buttons kept off it, and sheets and forms open on one side, according to the developer.

About Just Split: AI Bill Splitter

Just Split scans a receipt, splits it between the people who shared it, and keeps a running tally of who owes whom. On the open Duo the bill and the people sit on facing pages.

Related guides

Design · Specs9 min read

iPhone Duo poses: closed, open, book, standing and Split View

A plain-language guide to the ways you will hold iPhone Duo, what the phone itself does in each, and the apps and ideas that make the most of them. For anyone buying one, and for anyone building for it.

Oct 4Read the guide

Apps · Picks5 min read

The best iPhone Duo apps so far (October 2026)

The apps worth installing on day one, from Apple's four launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.

Oct 6Read the guide

Is this your app?

Add the badge to your site or press kit. It links back to this page, where fans can upvote you.

Featured on FoldHunt
<a href="https://foldhunt.com/apps/just-split/"><img src="https://foldhunt.com/badges/featured-on-foldhunt.svg" alt="Featured on FoldHunt" width="220" height="54"></a>

Need to update the listing? Email the editor.

Sources: Just Split on the App Store (apps.apple.com)