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Check before you fly: will your apps work there?

Pick a country and the apps you use every day, and see which need preparing before you fly.

Zuletzt aktualisiert 6. Oktober 2026

Check before you fly: will your apps work there?

Many problems people hit after landing are not about signal; some apps simply behave differently in some countries. This tool shows which of yours need preparing before you fly.

Apps you use every day

4 of your 4 apps may behave differently

  • TikTok — Not available over a travel planTikTok does not serve Hong Kong or Chinese addresses (Hong Kong since 2020). No travel eSIM fixes this, because the restriction is TikTok's own.
  • LINE — Vor dem Flug vorbereitenLINE is commonly unreliable on local networks and sometimes fails even over a foreign route. Keep a backup way to reach people.
  • Google Maps — Vor dem Flug vorbereitenWhether Google Maps loads depends on routing, and map data in China is often offset from real positions. Download offline maps and keep a local map app as backup.
  • Instagram — Vor dem Flug vorbereitenDepends on whether the plan routes your traffic through a foreign network; nobody can guarantee it, so read the plan page.

In China, foreign apps are commonly blocked or unreliable on local networks (a Chinese SIM or hotel Wi-Fi). Some roaming-based eSIM plans route traffic through a foreign network, so these apps often open, but it depends on the plan.

Tarife für China ansehen

This lists widely known country-level restrictions. It is not a guarantee that an app will open on any particular plan or network; read the plan page before you buy.

How to read the result

Each status reflects widely known country-level restrictions, not a guarantee for any single plan. For China, whether foreign apps open depends on whether the plan routes traffic through a foreign network, which you need to confirm on the plan page.

Dieses Tool wendet feste Formeln auf die von Ihnen eingegebenen Zahlen an. Kein Planpreis ist in das Ergebnis eingebaut, und die Antwort verändert sich nicht danach, was wir verdienen.

Häufig gestellte Fragen

Why does an app fail when I have signal?+

Because the cause is sometimes the service's own restriction — regional limits, location checks or a verification step that needs your usual number — not the connection.

Wohin als Nächstes

Warum manche Apps im Ausland nicht funktionierenLassen sich Google, LINE, Facebook und Instagram in China nutzen, und welche Verbindung sollten Sie wählenTikTok in China und Hongkong nutzenZwölf Dinge, die Sie vor dem Flug erledigen sollten

Falls dieses Tool Ihre Frage nicht beantworten kann, schreiben Sie uns auf LINE unter https://lin.ee/skDPoNx, auf WhatsApp unter https://wa.me/message/YTADWGTLZL2VH1 oder per E-Mail an esimonline.asia@gmail.com.