Live earthquake maps, alerts and safety tools, adapted for the Duo, its developer says
Does Earthquake HQ work on iPhone Duo?
Yes, says its developer: it was adapted in the iPhone Duo simulator for the cover, the open display, both half-folded poses and Split View. The App Store version doesn't mention the Duo yet.
- Developer claimedOkroshka Lab, the developer, in a submission to FoldHunt on October 14, 2026, saying the app was built and tested in the iPhone Duo simulator for the closed, open, book, stand and Split View poses, without describing the layouts. The App Store seller is Artem Demidenko (id 6762145993). Version 1.3 (released August 24, 2026) came out before the Duo was announced and does not mention it, and neither does the description.
Adapted for the fold
We're waiting on details of exactly what Earthquake HQ changes for the fold. Are you the developer? Tell us.
About Earthquake HQ
Earthquake HQ tracks earthquakes around the world on a live map and a 3D globe, with alerts for nearby quakes and the places you save, details and risk estimates for each event, charts of activity over time, a personal diary of events and an SOS mode with an action plan and emergency contacts. It has widgets and an Apple Watch app, works in 16 languages, and is free, with a subscription for advanced features.
Okroshka Lab says it adapted the app in the iPhone Duo simulator for the cover, the open display, the phone half-folded like a book or stood up, and Split View, without saying yet what each layout shows. The current App Store version came out before the Duo and doesn’t mention it.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· Developer statement reviewed
Developer claimed · iphone-duo
Read the developer's submission, the App Store release notes and description for version 1.3 and the developer's website, and looked at all ten iPhone pictures on the App Store.
App version: 1.3.
The submission names the poses but doesn't describe them, and the pictures show an ordinary iPhone. Nothing yet shows the app running on a Duo, and the iPhone Duo version isn't on the App Store. No build was tested.
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/earthquake-hq/"><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: Earthquake HQ on the App Store (apps.apple.com) · Earthquake HQ in Apple's app lookup (itunes.apple.com) · Okroshka Lab's website (ios.okroshkalab.workers.dev)
More for iPhone Duo
Tide Guide
Condor Digital
Tides at a glance closed; open, charts, weather and live radar in one view
Launch partner: Named by Apple in its Newsroom article of October 22, 2026, on apps optimized for iPhone Duo. The App Store release notes for version 27.1.2 (released October 24, 2026) say: "Meet Tide Guide for iPhone Duo! Check the tide at a glance, then unfold for a closer look at charts, weather, and solunar details. An all-new map puts real-time radar alongside your tide stations."
- Closed
- Open
Please Don't Rain
Chris Wu
A weather app that brings its iPad layout to the open Duo and splits at the half-fold
Simulator verified: Chris Wu, the developer, in a submission to FoldHunt on October 16, 2026, saying it's ready for launch day, with screenshots of the app in the iPhone Duo simulator on the app's press page, on X and on Mastodon. The App Store seller is Christopher Wu (id 6444577668). The release notes for version 5.30 (released October 16, 2026) have a section on iPhone Duo support.
- Closed
- Open
- Book
SolarWatch
Fifteen Jugglers Software
A sun dial whose tiles step off the crease as you fold
Simulator verified: The developer, Engin Kurutepe, posted a video of SolarWatch's layout going from open flat to half-folded (@ekurutepe on X) and later a TestFlight build with iPhone Duo support (@ekurutepe on X).
- Open
- Book