TL;DR. On iPhone a link opens the native app only when the destination has a Universal Link properly configured and the tap comes from a context iOS trusts. Inside Instagram, TikTok or Facebook that almost never happens, because those apps intercept the tap in their own webview first. The fix is a link that detects the in app browser and pushes the visitor out into the real app or Safari, with a web fallback. That is what a deeplink does.

This is one of the most common complaints on iPhone and the explanation is genuinely not obvious.

Why iOS opens Safari instead of the app

Apple's mechanism for opening an app from a web link is the Universal Link. The destination app registers the domains it can handle, iOS checks a file on that domain, and if everything matches the tap opens the app instead of the browser.

That system works well from Messages, Mail and Safari. It works badly from inside another app's browser, because the tap never reaches iOS in a form it treats as a normal navigation. Instagram and TikTok load the page in their own embedded webview, and the Universal Link never gets its chance.

The second reason, the webview itself

Even when the destination has no app, the in app browser is a problem. Your visitor is signed out of everything in there, so logging in, autofilling an address and paying with Apple Pay are all harder than they should be. That is where most of the drop off happens.

What you can and cannot control

You cannot force iOS to open an app you do not own. You cannot fix another app's webview behaviour from the outside. What you can control is the link you publish. A deeplink attempts the native app first, escapes the webview into Safari when the app is not available, and lands on the web version as a last resort so nobody hits a dead end.

Fixing it in under a minute

1. Copy the destination you currently point your bio link to.

2. Paste it into the deeplink generator on OpenUp.

3. Give it a readable slug so the link looks deliberate rather than random.

4. Replace the link in your bio and use the same one in your Stories.

5. Test it by opening your own bio from inside the Instagram app on a real iPhone, never from a desktop browser.

That last step matters more than it sounds. A desktop test always passes, because the in app browser only exists inside the social apps.

What changes on iPhone

The bottom line

On iPhone this is not your fault and not a bug you can fix in your settings. It is how the social apps choose to handle links. The only thing you control is the link you publish, and changing it takes a minute and costs nothing.

Frequently asked questions

Can I force Safari to open instead of the in app browser? Not from your phone settings, but a deeplink can push the visitor out of the webview.

Does this work on every iOS version? Behaviour varies between versions and apps, which is why the web fallback matters.

Why does the link work fine when I test it in Safari? Because Safari is not the in app browser. Always test from inside the social app.

Do I need to install anything? No.

Is it free? Yes, deeplinking is included on the free plan.

Last updated: September 2026. Written by the OpenUp.to team.

Internal links deeplink generator, instagram, short link