Market prices and liquidity, with the chart above its controls on the half-folded Duo
Does MarketGrep: Liquidity & Stocks work on iPhone Duo?
Yes, the developer says so: the notes for MarketGrep 4.3.15 separate the chart from its controls when half-folded and keep your page as the Duo opens.
- App Store confirmedThe developer, in the App Store release notes for version 4.3.15: open, the Duo shows a list beside the selected page, which stays in place as the phone opens; half-folded, a full-screen chart sits apart from its controls.
Adapted for the fold
We're waiting on details of exactly what MarketGrep: Liquidity & Stocks changes for the fold. Are you the developer? Tell us.
About MarketGrep: Liquidity & Stocks
MarketGrep tracks prices, liquidity and market sentiment. Version 4.3.15 adds iPhone Duo layouts, the release notes say: open, a list sits beside the selected page, which stays put as the phone opens, and half-folded, a full-screen chart sits apart from its controls.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 4.3.15 (released October 9, 2026) mention iPhone Duo: "MarketGrep 4.3.15: made for iPhone Duo, every page in the iPad tab bar, one page per screen on a full-screen iPad, a chart zoom that keeps today in view, and a way to rate the app."
App version: 4.3.15.
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 ↗
Related guides

The best iPhone Duo apps so far (October 2026)
The apps worth installing now that iPhone Duo is on sale, from the apps Apple named as launch partners to indie apps whose developers have shown a real iPhone Duo layout, picked for what they do when you open the phone.

Do your apps work on iPhone Duo? What happens before they're updated
Every iPhone app opens on iPhone Duo, but only updated ones fill the inner display. What an app looks like before its developer adapts it, how to tell which are ready, and which popular apps have said so.
Is this your app?
Add the badge to your site or press kit. It links back to this page, where fans can upvote you.
<a href="https://foldhunt.com/apps/marketgrep/"><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: MarketGrep: Liquidity & Stocks on the App Store (apps.apple.com)