Reference
14 apps that open
your link in their browser.
Not yours. Theirs. Every app below embeds its own webview and renders tapped links inside it, where sessions, wallets and extensions behave differently from the browser your visitor actually uses. This is the full list OpenOut recognises, and what it does in each case.
- Detected by user agent
- Server-side, before the page renders
- Generic fallback for the rest
The list
Apps OpenOut detects by name
Each of these announces itself in the user agent it sends. Detection happens on the server, so the decision is already made by the time the page reaches the visitor — no flash of the wrong experience while JavaScript works it out.
| App | Notes |
|---|---|
| TikTok | The highest-volume case for most creators, and the one with the least predictable menu. |
| Feed links, story link stickers and DMs all render here. | |
| Also covers Messenger and Marketplace — they share a user-agent family. | |
| Threads | A Meta app, but detected ahead of Facebook so its traffic isn't misfiled. |
| Where B2B links land, including the ones pointing at a booking or demo form. | |
| High commercial intent: a tapped pin is usually someone looking to buy. | |
| The official app's webview. Third-party clients mostly hand off to the real browser. | |
| Snapchat | Link attachments and profile links both open in-app. |
| X / Twitter | Matched on the app's own token, not a bare mention of the site in a user agent. |
| One of the most restrictive webviews in wide use, and effectively unavoidable in its markets. | |
| LINE | Dominant messaging app in Japan, Taiwan and Thailand — significant if you sell there. |
| KakaoTalk | The equivalent in South Korea, with the same in-app link behaviour. |
| Naver | Naver's in-app browser states its own shape in the user agent, so it is unambiguous. |
| Google app | Tapping a Discover card on iOS lands here. A large share of "came from Google" mobile traffic that used to read as a normal browser. |
The regional apps in that list — WeChat, LINE, KakaoTalk and Naver — matter more than their absence from most Western tooling suggests. In their home markets they are not a minor channel; they are the channel.
The catch-all
And everything that doesn't match
A named list is never complete. Apps ship new builds, change their tokens and appear from nowhere, so a detector that only knew a fixed set of names would silently stop working for the next one.
So there is a second layer. Beyond matching known apps, OpenOut checks for the general markers a webview sends regardless of which app embedded it. Anything caught by that check is handled as an unnamed in-app browser: the same breakout flow, the same fallback, just without an app name attached to it in your analytics.
That layering is deliberate. The named list makes your reporting readable; the generic check is what keeps the product working on the day an app you have never heard of starts sending you traffic.
What happens next
The same detection, three different responses
Knowing which app a visitor is inside is only useful if the next step suits the platform. What is possible differs sharply between iOS and Android, and pretending otherwise is how tools end up promising an automatic escape they cannot deliver.
Android — intent hand-off
Android exposes an intent mechanism for handing a URL to another app, so OpenOut attempts a real hand-off to the system browser (or specifically to Chrome, if that's how the page is configured). This is the platform where automatic breakout works most often.
iOS — guided flow
iOS has no equivalent way for a webview to push a URL into Safari. So OpenOut shows a guided flow instead: either instructions pointing at the app's own menu, or a one-tap copy of the destination with paste instructions. Slower, and it does not depend on the app cooperating.
Desktop and everything else
Where the OS can't be determined, or the visitor is on desktop, OpenOut falls back to the generic guide rather than attempting a hand-off that has no chance of working.
Every one of those paths ends the same way: if the hand-off doesn't happen, the visitor gets a one-tap copy of the destination and short instructions for pasting it into their own browser. That fallback is the only step in the chain that works on every platform, every version, every time — which is why it is always present rather than treated as an error state.
What this page will not claim
No tool can guarantee Safari opens
It is worth stating plainly, because the category is full of copy that implies otherwise. There is no supported mechanism on iOS for a webview to push a URL into Safari, and Android's works often rather than always.
What can be done is detecting the context accurately, attempting the best available hand-off for that exact platform, and making the manual path a single tap instead of a puzzle. That is a meaningful difference in conversion, and it is an honest one. Anything stronger would be a promise about behaviour that Apple, Google and ByteDance control and change without notice.
FAQ
Straight answers
Which apps open links in an in-app browser?
Effectively every large social and messaging app. OpenOut currently detects 14 by name — TikTok, Instagram, Facebook, Threads, LinkedIn, Pinterest, Reddit, Snapchat, X / Twitter, WeChat, LINE, KakaoTalk, Naver, Google app — plus a generic catch-all for webviews that identify themselves without matching a known signature. Messenger and Marketplace are covered by the Facebook entry; they share its user-agent family rather than being separate detections.
What happens with an app that isn't on the list?
It still gets handled. Detection has two layers: a named match against a known app, and a generic check for the markers a webview sends regardless of which app embeds it. An unrecognised webview is treated as "other" and gets the same breakout flow, just without the app-specific naming in your analytics.
Can I turn the breakout off for specific apps?
Yes, at three levels of granularity: TikTok, Instagram and everything else. So you can leave breakout on for TikTok while letting Instagram traffic through untouched, or disable it everywhere without deleting the configuration.
Does breakout work the same on iPhone and Android?
No, and any tool claiming otherwise is overselling. Android's intent system allows a genuine hand-off to the default browser, so automatic breakout frequently succeeds. iOS provides no such mechanism to a webview, so the reliable path there is a guided copy-and-paste flow. OpenOut picks the approach per platform rather than pretending one method works everywhere.
How does detection actually work?
By reading the user agent the app sends with the request. Each app appends its own token — Instagram names itself outright, TikTok uses several build names, Meta apps share a token family. Detection runs on the server so the decision is made before the page is sent, and it runs again on the client after mount in case the two disagree.
Can detection be wrong?
It can, and the design assumes it. User agents are self-reported strings that apps change without notice, so a reading is labelled by how it was arrived at — a named match, a heuristic guess, or nothing measurable. Because every path ends in a copy-link fallback that works regardless, a wrong reading costs the visitor a step rather than the destination.
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