iPhone Duo 100000 Apps Explained: 100,000 Optimised Apps in Two Weeks, What's Still Missing and India Price
The iPhone Duo, Apple's first foldable, half-open showing its outer display. Image: Wikimedia Commons / SimonWaldherr, CC BY 4.0.
📌 KEY HIGHLIGHTS
- The milestone: On 6 November 2026, Apple said well over 100,000 apps built for the iPhone Duo are live on the App Store, with thousands more being added every day.
- What the number counts: Only apps built with the iOS 27.1 SDK or later. Those fill the full width of both displays and move their controls into the status bar — and carry a "Made for iPhone Duo" badge.
- Newly ready: Microsoft Word, Outlook, Excel, PowerPoint and OneNote, Zoom, the NBA and NHL apps, Etsy, Goodnotes and the Halide Mark III camera app.
- Still missing: Google Docs, Sheets and Slides, Microsoft Teams, DoorDash, Uber Eats, Venmo, PayPal, Starbucks and Duolingo — plus Apple's own Apple Store app.
- India angle: The Duo costs ₹2,99,900 in India, sold out within hours of orders opening, and delivery estimates have slipped into January 2027.
What happened?
Apple announced the milestone on Friday 6 November 2026, in a statement from Susan Prescott, its vice president of Worldwide Developer Relations, given to 9to5Mac and reported by MacRumors and TechCrunch. "Today there are well over 100,000 apps built for iPhone Duo already live on the App Store, and thousands of optimized apps are being added to the store each day," Prescott said. "It's been wonderful to see how quickly developers have embraced iPhone Duo, and we're grateful for their creativity and innovation."
The timing matters. The Duo went on sale on 23 October, and the loudest complaint in the launch reviews was the lack of apps built for the foldable's two screens. Two weeks later, Apple has an answer: about 7,000 apps a day, on average, have crossed the line since launch (100,000 divided by 14 days). Apple says it ran more than 50 in-person workshops for developers in 19 cities over the past month, with more than 2,000 developers attending, to help them adapt their apps. The company also notes that iOS 27.2 added Apple Pencil (USB-C) support to the Duo, for drawing, note-taking and markup.
iPhone Duo 100000 apps explained: what "built for iPhone Duo" actually means
The 100,000 figure is a technical bar, not a design review. Apple counts an app as built for the Duo when it was compiled with the iOS 27.1 software development kit (SDK) or later. How an app looks on the Duo depends entirely on which SDK it was built with:
| Built with | How it looks on the Duo |
|---|---|
| iOS 27.1 SDK or later | Fills the full width of both displays, with toolbars and tab bars running vertically below the status bar. Carries the "Made for iPhone Duo" badge on its App Store listing. |
| iOS 27 SDK | Fills most of the inner display, but avoids the status bar on the right edge. |
| iOS 26 SDK or earlier | Runs centred on the inner display, with empty black space on both sides — and sometimes hides functions under an overflow menu. |
That distinction is the honest caveat behind the headline. Building with the new SDK gets an app onto the full display, but it does not by itself guarantee a redesigned foldable experience — the badge means the app fills the screen, not that every screen has been rethought for it. Still, for a phone whose main selling point is a 7.6-inch inner display — which Apple says is 50 percent larger than the iPhone 18 Pro Max screen — the difference between a centred app with black bars and a full-width one is the difference between the Duo feeling like a gimmick and feeling like a bigger phone.
Illustrative image: foldable smartphones (Samsung Galaxy Z Flip 5G and Galaxy Z Fold2 5G) — not the iPhone Duo. Image: Wikimedia Commons / Samsung Galaxy Z, CC BY 3.0.
Which big apps are ready — and which are still missing
The new wave covers the apps people actually open every day. Work is now sorted: Microsoft's full Office set — Word, Outlook, Excel, PowerPoint and OneNote — is optimised, after Word and Outlook missed the launch entirely. Video and social were mostly ready from day one, and the new additions fill the gaps in sport, shopping and productivity:
| Category | Optimised for iPhone Duo |
|---|---|
| Work | Microsoft Word, Outlook, Excel, PowerPoint, OneNote |
| Video & social | Netflix, YouTube, Instagram, WhatsApp, Amazon Prime Video |
| Sport & travel | NBA, NHL, MLB, Flighty, Fantastical |
| Shopping & creativity | Etsy, LTK, Canva, Goodnotes, Halide Mark III |
| Communication | Zoom, Google Chat, Google Translate, ChatGPT |
The missing list is just as telling. MacRumors checked App Store listings for the "Made for iPhone Duo" badge and published 41 apps that were still not optimised as of 6 November. The pattern is odd: Google has optimised Chat and Translate, but not Docs, Sheets or Slides. Microsoft shipped the whole Office suite, but not Teams — the app many office workers open first. The gaps, by category:
- Work: Google Docs, Google Sheets, Google Slides, Microsoft Teams, Microsoft Authenticator
- Money: Venmo, PayPal, Wells Fargo
- Food and shopping: DoorDash, Uber Eats, Grubhub, Starbucks, Whole Foods, Best Buy
- Travel and shipping: Delta, Southwest, JetBlue, UPS, FedEx, USPS
- Everything else: Duolingo, YouTube Music, Bluesky, Steam, Google Home, Ring — and Apple's own Apple Store app
One name on Apple's ready list needs an asterisk. Apple counts Spotify among the updated apps, but TechCrunch reported that its review Duo still showed the black side bar, with no update available in the App Store. Until the update actually reaches phones, Spotify belongs on the announced list, not the installed one. And the missing apps are not unusable — every App Store app still opens on the Duo. They just run centred, with black bars, instead of using the bigger screen.
Why it matters for India readers
For Indian buyers, the app question was the biggest reason to wait. The Duo went on sale in India on 23 October at ₹2,99,900 for the 256GB model — read our iPhone Duo price in India, specs and sale date post for the full picture — and sold out within hours of orders opening. The 100,000-app figure answers the headline worry, but the honest check is personal: open the App Store listing of the five apps you use most and look for the "Made for iPhone Duo" badge. If your day runs on Google Docs, Teams and a food-delivery app, the Duo still shows you black bars where the big screen should be.
The comparison Apple would like you to make is with the Vision Pro. When that headset launched in February 2024, Apple counted just over 600 native apps — and the Duo has passed 100,000 in fourteen days. The comparison flatters the Duo, but it is not quite like-for-like: Duo apps are existing iPhone apps rebuilt with a new SDK, while Vision Pro needed entirely new spatial apps. Even so, the pace is real — roughly 7,000 apps a day — and Apple says it expects the pace of updates to keep accelerating.
The other half of the wait is supply, and that has not moved. Every Duo configuration slipped to January delivery estimates within about half an hour of pre-orders opening in October, and on its earnings call this week Apple said it is "hard to predict" when the constraints will improve. Apple publishes no current ship date, so treat any January date as an estimate, not a promise.
Should you care?
✅ If you already own a Duo: yes — the app gap is closing fast, and the apps you waited for are arriving daily. Check for updates, and look for the badge before you judge an app.
⏳ If you are thinking of buying at ₹2,99,900: the software is no longer the blocker; the stock is. Wait for delivery times to normalise unless you need a foldable now — and check that your five most-used apps carry the badge first. Our earlier post on Made for iPhone Duo apps explains the badge and Split View in detail, and the sold-out launch day post covers what happened when orders opened.
FAQs
How many apps are optimised for iPhone Duo?
Well over 100,000, according to Apple on 6 November 2026 — two weeks after the phone went on sale on 23 October. Apple says thousands more optimised apps are being added to the App Store every day.
What does "Made for iPhone Duo" mean?
It means the app was built with the iOS 27.1 SDK or later, so it fills the full width of the Duo's inner and outer displays and places its controls vertically in the status bar. Optimised apps carry a "Made for iPhone Duo" badge on their App Store listing.
Is Google Docs optimised for iPhone Duo?
No — as of 6 November 2026, Google Docs, Google Sheets and Google Slides were still not optimised, according to MacRumors' check of App Store listings. They still run on the Duo, but centred on the inner display with black bars on either side.
How much does the iPhone Duo cost in India?
₹2,99,900 for the 256GB model. It went on sale in India on 23 October 2026, sold out within hours of orders opening, and delivery estimates have slipped into January 2027.
Takeaway
Apple's 100,000-app milestone answers the biggest complaint from the Duo's launch reviews — but it counts apps built with a new SDK, not redesigned experiences, and the apps many people use most are still waiting. For Indian buyers, the software is catching up faster than the stock: check the badge on the apps you actually use before paying ₹2,99,900.
Before you buy, open the App Store listing of the five apps you use most and look for the "Made for iPhone Duo" badge — that one check tells you more about the phone than the 100,000 number does.
Sources
- MacRumors — Apple Says More Than 100,000 Apps Optimized for iPhone Duo, Here's What's Still Missing (6 November 2026)
- TechCrunch — The Duo apps are coming, says Apple (6 November 2026)
- Mac Observer — Apple says 100,000 apps are built for iPhone Duo, but Google Docs still isn't (9 November 2026)
- MacRumors — Apple Announces More Than 600 Apps Already Optimized for Vision Pro (1 February 2024)
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