How Modern Must Your iPhone Be?

An iOS version number is abstract, but the iPhone it rules out is not. The median app on the store requires an iOS old enough to still install on an iPhone 6s, a phone from 2015, roughly 11 years old. So the typical app isn't chasing the newest hardware at all. It's perfectly happy running on a handset most people would call ancient by now. 79.6% of apps still install on an iPhone 6s, and only 20.4% have bothered raising their floor to an iPhone 8 or newer.

The single most common iOS band is iOS 14–16, and only 11.9% of apps demand iOS 17 or newer (an iPhone XR or later). Developers seem to know that requiring the latest OS shrinks their audience, so most set their floor a few versions back — recent enough to use modern tools, old enough to still reach phones that are several years old.

47.4% of apps still install on iOS 13 or older. Some of these are old apps their developers stopped touching years ago. Others are lean utilities built on purpose to keep running on older phones, since there's no real reason to drop that support. Either way, it's why an aging iPhone still holds up better than you'd expect: most of the store still opens on it.

Minimum-iOS floors don't spread out evenly across the decimals; they clump around a handful of round numbers instead. The single most common floor in the whole store is iOS 13.0, set by 118,513 apps (13.1% of them), followed by iOS 15.0 (96,570) and iOS 12.0 (84,395). Add up just those three ".0" releases and you've already got more apps than the entire long tail of point releases sitting underneath them.

The reason behind this is human, not technical. Hardly any developer sits down and calculates the ideal floor for their app. Most just accept whatever "minimum deployment target" their tools defaulted to the day the project was created, then never go back and touch it. So the store's compatibility map amounts to a kind of fossil record, one that reflects whatever iOS version happened to be current when each app was first built. That's exactly why so much of the store still reaches back to phones that are years old.

Upgrade pressure doesn't hit every category the same way. Line apps up by how many require iOS 17 or newer and Developer Tools lands at the top with 34%, followed closely by the rest of the pro and creative crowd: Weather at 24% and Graphics & Design at 23.3%. Makes sense once you think about who actually uses these apps. Developers and designers tend to run current hardware, so the people building those apps don't have much reason to hold back on newer frameworks.

Games land at the opposite end entirely. Just 4.4% require iOS 17, and 93.2% of them still run fine on an iPhone 6s. Game studios want the widest possible audience, so they keep supporting every old phone that can run their app. If your iPhone has some years on it, the games will keep working long after the professional tools have moved on without it.

Here's the catch hiding inside those comforting averages. Once you narrow the view to apps people genuinely use, the 3,483 in our index with more than 100,000 ratings, the floor jumps up noticeably. 20.5% of those popular apps require iOS 17 or newer, against 11.9% across the store as a whole, and only 63.9% still install on an iPhone 6s, versus 79.6% overall. The apps everyone's talking about simply demand more from your hardware than a typical listing does.

That gap is why an old iPhone can technically run "most of the store" and still feel left behind. The apps you actually reach for each day, the big social, streaming, and finance names, tend to be exactly the ones that moved on without you. Compatibility looks generous when you average across everything. Narrow it down to what you actually open, and it tightens by several years.

Two honest caveats worth naming. Getting an app to install isn't the same as getting it to run well. Plenty of apps post a low iOS floor and still lean on features or performance that an old iPhone 6s chokes on, so a green light here just confirms the floor is met, not that the experience holds up. Second, we're only looking at each app's declared minimum. There's no way to know if that floor was set on purpose or is just an untouched default left over from whenever the app was built, and it tells us nothing about future updates that could quietly raise the bar. Every number below comes straight from Apple's stated requirement across 904,039 apps, translated into the iPhones that requirement implies. None of it is a benchmark we ran ourselves.