Install Apps on iPhone Without iOS 16

If your iPhone is stuck on an older iOS version (like iOS 15 or earlier), you may have noticed that the App Store now refuses to download many apps, showing a message that the app requires iOS 16 or later. This guide explains practical ways to install apps on iPhones that don’t support iOS 16, including downloading older compatible versions, using the App Store’s purchase history, and a few workarounds that can expand your options.

What You’ll Need

An iPhone running iOS 15 or earlier (check in Settings > General > About > iOS Version).
An Apple ID that has previously downloaded the app (even on another device).
Internet connection (Wi-Fi or cellular).
Patience – not every app can be installed this way.

Step-by-Step

Check your iOS version. Go to Settings > General > About and note the exact version. This tells you what you’re working with and whether any workaround will apply.
Try downloading the app normally. Open the App Store, search for the app, and tap the download button. If you see a message like “This app requires iOS 16 or later,” proceed to the next step.
Use the App Store’s “Purchased” list. Open the App Store, tap your profile icon (top right), then tap Purchased. Find the app in your purchase history. If it’s there, tap the cloud icon to download it. The App Store will often offer the last compatible version automatically.
If the app isn’t in your purchase history, borrow a friend’s Apple ID (temporarily). Ask someone who has downloaded the app on their account to sign in on your iPhone (Settings > your name > iTunes & App Store > Apple ID > Sign Out). Then go to the App Store, search for the app, and tap download. You’ll be prompted to enter their password. After downloading, they can sign back in. This works because the App Store recognizes their purchase and offers the compatible version.
Use the “Download an Older Version” prompt. Sometimes, after tapping download, a popup appears: “Download an Older Version?” Tap Download to get the last version that supports your iOS.
If you own the app on another device (like an iPad), make sure you’re using the same Apple ID. Then in the App Store on your iPhone, go to Purchased and download it from there.
Consider sideloading as a last resort. Sideloading means installing an app outside the App Store. This requires a computer, a tool like AltStore or Sideloadly, and an Apple ID. It works for many apps, but it’s more technical and may violate Apple’s terms. Only do this for apps you trust and that are legal in your region.
For apps that still won’t install, check if the developer offers an older version on their website (e.g., for jailbroken devices), but be extremely cautious about security.

Common Mistakes

Assuming the App Store will always offer the older version. It doesn’t. If the developer hasn’t enabled backward compatibility, you’ll get an error.
Using a different Apple ID than the one that purchased the app. The purchase history method only works if the app was bought with the same account.
Forgetting to check if the app is actually compatible with your iOS version. Some apps require iOS 15.1, but you might be on iOS 15.0. Always check the app’s minimum requirement in the App Store’s description.
Signing out of your Apple ID without noting your password. You’ll be locked out of your account if you forget it.
Trusting random third-party stores or jailbreaking. These can install malware or void your warranty.

Tips

Keep your iPhone on the latest iOS it supports. Apple regularly updates older devices (e.g., iPhone 6s can go to iOS 15). This gives you better compatibility.
If an app won’t install, try updating it. Sometimes the App Store only shows the latest version, but if you already have an older version installed, you can update it without issues.
Use the App Store’s “Support” link on the app page. It often shows the minimum iOS requirement. If it’s higher than yours, skip it.
For apps you really need, consider buying a used iPhone that supports iOS 16. The iPhone 8 and later support iOS 16, so older models like the iPhone 6s or 7 won’t.

Troubleshooting

“This app requires iOS 16 or later” still appears after trying all steps. This means the developer hasn’t allowed older versions. You cannot bypass this without sideloading or upgrading your iOS.
The download button is greyed out. This usually means the app is not compatible with your device at all. Try restarting the App Store by closing it and reopening.
You get a message about your Apple ID being invalid. Sign out and sign back in, then try again.
The app downloads but won’t open. Delete it and re-download from your purchase history. If it still crashes, the app may require a newer iOS than what you have.
Your friend’s account won’t work. They must have the app in their purchase history. If they never downloaded it, it won’t work.
Sideloading fails. Make sure you have the latest version of the sideloading tool, and that your computer has iTunes installed (for Windows).

Frequently Asked Questions

Can I install apps that require iOS 16 by changing the system date?

No. Changing the date does not affect App Store compatibility checks. The App Store checks your iOS version, not the date.

Will Apple ever let me update to iOS 16 on my iPhone 6s?

No. Apple only supports iOS 15 for the iPhone 6s, 6s Plus, and first-generation SE. They are not eligible for iOS 16.

Is it legal to sideload apps?

In most countries, sideloading apps you own or that are free is legal, but it may violate Apple’s terms. Always ensure you’re not pirating software.

Why do some apps show “Download an Older Version” and others don’t?

It depends on the developer. They must enable the option for older versions to be available. If they haven’t, you won’t see it.

Can I install an older version of an app from a third-party website?

You can, but it’s risky. These files may contain malware. Only do this if you trust the source completely and understand the risks.

What if I don’t have the app in my purchase history?

Then you’ll need to use a friend’s Apple ID or sideload. Buying the app on a newer device first won’t help unless you use the same Apple ID.

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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