
Was Reisende Was wird uns am häufigsten gefragt?
Yes. The Europe plan covers Austria and 48 other countries, including all eight of its neighbors, and your phone switches networks by itself at the border. Choose it over an Austria-only plan if a day in Bratislava, Munich, or Slovenia is on the cards. Details in does a region plan cover every country in it?
In Austria your plan connects to A1 or Drei, with 5G in the cities and resort bases and 4G LTE elsewhere. Your phone joins the network automatically once the plan is switched on. If it hasn't connected a minute after landing, work through the no-signal checklist.
At the resort bases and on most pistes, yes. In the huts, on the high routes, and over the passes, often not, on any network. Download piste maps and hut details before you go up, and take cash for the huts.
Only on the Europe plan. An Austria-only plan stops at the border. If you're already in Austria on an Austria plan, add a Slovakia plan to the same eSIM before you board the train.
It depends on how much data you want and how many days you're staying. A fixed plan costs less overall; an unlimited plan (5 GB a day at full speed, then slower) works out to a lower daily rate the longer you stay. Every current option and price is in the plan selector at the top of this page.
In the app: open My plans, choose your Austria plan, and tap Top up. The extra data lands on the same eSIM within a few seconds, with nothing new to add or scan. Full steps are in topping up data without reinstalling the eSIM.
Weeks ahead. The plan's days don't start until you turn it on and connect, so a plan bought a month before departure is still complete when you land. Plans need to be activated within 90 days of purchase. See what plan validity means and when it starts.
If it's eSIM-compatible and carrier-unlocked, yes, which covers most phones sold since 2019. The one-minute check for iPhone, Android, and Samsung is in is my phone eSIM compatible?

Austria eSIM for Vienna, the Alps, and day trips across the border
Set it up before you fly. It's live the moment you land, nothing to check, nothing to remember.
Already with us? Get the app on the App Store or Google Play.
Austria is a country where the train ticket, the ski pass, and the museum slot are all in apps, and where the Würstelstand still wants cash. The best eSIM for Austria is the one that's working when you land at Vienna airport, so the S7 into the city is bought on the platform and the rest of the week is planned on the train.
Below: how an Austria plan works, how to set it up before you fly, what to expect in Vienna and in the Alps, and why the Europe plan is usually the better buy for a country with eight borders.
Most travel eSIMs make you start over for every country, which in Europe means a new QR code every few days. KnowRoaming doesn't. You add the KnowRoaming eSIM, called KR.One, to your phone once, and from then on each trip is a plan you add to it: Austria now, Italy in the spring, the whole continent on a Europe plan when the itinerary gets ambitious. Nothing to scan again, nothing to delete when you get home.
The plan's days start when you turn it on and connect in Austria, not at checkout. Buy it weeks ahead, add it at home, and a delayed flight costs you nothing. The full rule is in what plan validity means and when it starts.
Choose a fixed plan for a set amount of data at the lowest overall price, or an unlimited plan when you'd rather not count. Unlimited plans give you 5 GB a day at full speed, then a slower speed until the allowance resets the next day. If a fixed plan runs low, top up in the app and the extra data lands on the same eSIM.
See it in two minutes: Meet KR.One, iPhone setup with KR.One, or Samsung setup with KR.One.
Do this at home on Wi-Fi. It takes about a minute.
Before you leave
- Get the KnowRoaming app (available on iOS and Android) and choose your Austria plan.
- Tap Add. First time on this phone? The app adds KR.One and your Austria plan together. Already have KR.One? Only the plan is added, with nothing to scan.
- Leave data roaming off on the KnowRoaming line until you land, and turn it off on your home line too so it doesn't run up charges in the background. Steps are in turning off roaming on your home line.
When you land
- Turn the plan on in the app, then turn data roaming on for the KnowRoaming line. That setting lives in your phone, so the app can't flip it for you.
- Give the phone a minute to find the network. If nothing happens, turn airplane mode on for 30 seconds and off again.
Prefer a QR code? The checkout page and your confirmation email both carry one; scan it from your phone's settings. Every tap, by device, is in adding your eSIM on iPhone, adding your eSIM on Android, and adding your eSIM on Samsung, or watch the iPhone QR walkthrough or the Samsung QR walkthrough. Still no signal after landing? Work through the no-signal checklist.
Vienna airport has two trains into the city: the S7, cheap and about half an hour, and the CAT, about 15 minutes and pricier. The ÖBB app sells train tickets for the whole country and WienMobil covers the U-Bahn, trams, and buses in the capital; both need data to buy on the move. Bolt and Uber both run in Vienna.
Cards are accepted in most places, but Austria keeps more cash in circulation than its neighbors: sausage stands, small cafés, mountain huts, and some country guesthouses are cash only. Carry euros. Museum entry, the Opera's standing tickets, and the Christmas markets' skating rinks all sell slots online.
Railjet trains link Vienna with Salzburg in under three hours and Innsbruck in about four, with Hallstatt a change and a ferry beyond. The ski regions of Tyrol, SalzburgerLand, and the Arlberg run their lift passes, lessons, and live piste maps through apps, and the resort bases all have 5G.
Above the villages it changes. Mountain huts on the hut-to-hut routes, the high pistes, and the passes between valleys drop signal on every network. Download the route and the hut's phone number before you climb, and pay the hut in cash.
Austria touches Germany, the Czech Republic, Slovakia, Hungary, Slovenia, Italy, Switzerland, and Liechtenstein, and every one of them is on the Europe plan: 49 countries on one plan, switching networks by itself at the border. Bratislava is an hour from Vienna by train, Munich under four, Lake Bled a morning's drive from Klagenfurt. An Austria-only plan stops at the border, so for any trip that crosses one, the Europe plan is the better buy from the start. Read do I need a new plan for every country? for the detail.
Vienna's Christmas markets run from mid-November to the day before Christmas, the Rathausplatz one with a skating rink that sells slots online. The State Opera's standing-room tickets are sold on the day and, increasingly, through its app; the Vienna Philharmonic's New Year's concert is a ballot months ahead.
In summer the Danube cycle path from Passau to Vienna is the other reason people come, four or five days along the river with signal the whole way and the guesthouses booked a day ahead by message. Bike rental, luggage transfer, and the ferry crossings at the loops all run through apps.
The Wachau, the Danube valley between Melk and Krems, is a day from Vienna by train and boat: the abbey at Melk, the vineyards and apricot orchards, and Dürnstein with its castle ruin above the river. Graz, Austria's second city, is two and a half hours south by Railjet, with a UNESCO old town and the Kunsthaus; Linz, on the Danube to the west, is the Ars Electronica city.
All three are easy on the plan: 5G in the cities, 4G along the river and the rail lines, and the boat and museum tickets sold online.
Your plan connects to A1 or Drei, with 5G in Vienna, Graz, Linz, Salzburg, and Innsbruck and at the main resort bases, and 4G LTE through the valleys and along the rail lines. Your phone picks the network automatically once the plan is on; there is nothing to choose by hand.
On high pistes, hut-to-hut trails, and the passes, expect gaps on any network. Save what you need in the valley.
Most phones sold since 2019 support eSIM, including iPhone XS and later and most Android flagships from the same window. Check yours before you add a plan; it takes a few seconds. On iPhone, go to Settings, General, About and look for an EID or Available SIM. On Android, go to Settings, Network & Internet, SIMs and look for an option to add an eSIM. On Samsung, dial *#06# and look for an EID.
Your phone also needs to be carrier-unlocked. If you're not sure, carrier-locked vs unlocked: how to tell shows you where to look.
Adding an Austria plan doesn't touch your regular SIM. Calls and texts on your usual number keep working exactly as before. The new plan handles data while you're there, and most phones run both at once without you doing anything else. Bank codes and two-factor texts still arrive on your home number, as long as that line stays switched on.
For a European trip the real competition isn't another eSIM. It's your home carrier's roaming add-on, priced for a weekend and throttled by midweek; the SIM counter in arrivals, after the flight, with a queue; and café Wi-Fi, in a country where even the bus ticket is in an app. An Austria plan added at home beats all three: one price agreed before you fly, live the second you land, and a Europe plan waiting if the trip grows.
Real travelers rate KnowRoaming 4.5 out of 5 on Reviews.io. More than a decade in travel connectivity, more than 200 destinations, and support that doesn't clock off: WhatsApp and live chat, any time, any day.
One plan. No roaming surprises. Live the moment you land.
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4.5 out of 5 on Reviews.io. 200+ destinations. Support that doesn't clock off.
Traumreiseziele, Echtzeitdaten.
Very easy to set up.
Iviwe
Cape Town, ZA
i had no issues. however i am moving to a provider that provides 365 packages at reasonable rates. u dont do that currently. also because im buyinhg on mtn which is using u u are getting my support bec its easier. u have to offer better packages. also i was charged 20% more than the advertized rate, i am currently in dispute with mtn.
Siki
Great service
Edmond N
