Why there's a green frog on every corner
You will notice them within an hour of arriving. Żabka (ZHAB-kah, meaning "little frog") is the small green convenience store you pass every fifty metres in central Krakow, sometimes two on the same block facing each other. There are well over a hundred in the city and the count keeps climbing. On Grodzka, on Floriańska, on Karmelicka, tucked into Kazimierz side streets, they are the shop you actually end up using more than any museum gift counter.
Here is the practical point. Żabka is franchised, open long hours, cashless-friendly, and it stays open on Sundays when the supermarkets are legally closed. For a visitor that combination is worth understanding properly, because it changes how you handle food, water, late nights and the one day a week when Polish retail shuts down.
Most branches run roughly 6am to 11pm, seven days a week, though a few near the Rynek and the station stay open later or around the clock. Opening times are printed on the door and are genuinely reliable. Card and phone payment work everywhere, contactless, no minimum spend, Apple Pay and Google Pay accepted without a second glance. You can go a full week in Krakow using nothing but a phone, and Żabka is a big part of why.
The hot dog, the coffee, and the żappka app
The reason locals actually walk in is the counter by the till. Every Żabka runs a hot food setup: hot dogs, panini, nachos with cheese sauce, sometimes a rotating hot box. A classic hot dog costs around 7 to 9 PLN in 2025, and the coffee from the Żabka Café machine is around 8 to 10 PLN for a large. It is not specialty coffee. It is a perfectly drinkable flat white at half the price of a café, and at 7am when nothing else is open, that matters.
The money-saving move is the loyalty app, żappka (ZHAP-kah, same word, the app just spells it with a doubled p). Download it, and the barcode on your screen earns points called żappsy on everything you buy. The app constantly throws out cheap deals: a second hot dog for a złoty, coffee stamps that give you a free one after a set number, discounted energy drinks and water. If you are buying coffee or a snack more than once during your trip, the app pays for itself on day one. The interface has an English toggle in settings, and you do not need a Polish phone number to register, an email works.
A small warning. The prices on the shelf and the prices in the app are not always the same item, and some "deals" are only unlocked after you scan a few purchases. Do not overthink it. Scan the app at every till, take the cheap coffee, ignore the rest.
Many branches now have self-checkout kiosks with an English option. Scan, tap the app if you want, pay by card, done. If the queue at the manned till is long, look for the screens by the door.
Why Żabka is open on Sundays when everything else is shut
This is the single most useful thing to know. Poland has a Sunday trading ban (zakaz handlu w niedzielę), and on most Sundays the big supermarkets, Biedronka, Lidl, Carrefour, Kaufland and the malls, are all closed. First-time visitors get caught out badly, planning a lazy Sunday grocery run that cannot happen.
Żabka is the loophole. The law exempts shops where the owner works behind the counter, and because each Żabka is franchised to an individual owner-operator, they qualify. So on a non-trading Sunday, when Galeria Krakowska's supermarket floor is dark, your corner Żabka is open and busy. Same goes for the small independent shops labelled sklep and the night shops.
A few Żabka branches that are staffed only by employees do close on the banned Sundays, so it is not a cast-iron guarantee for a specific address. But in the tourist core you will always find one open within a few minutes' walk. There are also around seven or eight "trading Sundays" spread across the year, usually before big holidays, when everything opens normally. If your Sunday shopping plan is important, check whether it is a trading Sunday before you rely on the supermarkets.
What this means in practice: use Żabka for Sunday breakfast, bottled drinks, a bottle of wine, basic groceries and anything you forgot. Do your big, cheap shop at a supermarket on Saturday.
Alcohol, cigarettes, parcels and the things you didn't expect
Żabka sells beer, wine and spirits, and this is where a lot of visitors stock up for the room or the riverbank. A can of Polish lager like Żywiec or Tyskie runs around 4 to 6 PLN, considerably less than a bar. Wine and vodka are stocked too, though for anything decent a proper shop or a Carrefour Express will serve you better.
One thing to watch. Krakow has periodically debated and in places restricted late-night alcohol sales, and rules can change by district and by year. If you turn up at 2am wanting beer, do not assume it is legal to buy, and do not be surprised if the fridge is locked or the till refuses the sale after a certain hour. Check the situation when you arrive rather than trusting an old blog. During the day none of this applies.
Cigarettes and vapes are behind the counter, ID required, and you ask the assistant. Żabka is also where a lot of everyday admin happens for locals, and some of it is handy for a traveller. You can top up a Polish prepaid SIM, pay certain bills, and at many branches collect an InPost paczkomat parcel or pick-up. If you order something online during a longer stay, or need to send a return, the Żabka pickup point is often the easiest option, though you handle the actual locker outside.
Do not count on Żabka for public transport tickets. Some kiosks and the old Ruch and Kolporter newsstands sell MPK tram and bus tickets, but Żabka coverage is patchy and not worth the gamble. Buy transport tickets from the yellow machines at stops, the machines onboard, or the Jakdojade or mobiletickets apps instead.
And a genuinely useful budget note: Krakow tap water is safe and good to drink straight from the kitchen cold tap, so you do not need to buy bottled water at all. If you prefer bottled, the cheapest own-brand still water in Żabka is a couple of złoty, but a refillable bottle from your accommodation costs nothing.
Żabka, Biedronka or Lidl: which to use when
Żabka is convenient and open, but it is not cheap. You are paying a premium for the corner location and the long hours. For anything more than a snack, the discount supermarkets win on price by a wide margin.
Biedronka (byeh-DRON-kah, another animal, "ladybird") is the red-and-yellow discount chain you will see everywhere just outside the tourist core, with large branches near the main train station and in Kazimierz. Prices are low, the range is huge, and the fresh bread and fruit are far better value than Żabka. Lidl is similar, slightly further out, worth it if you are self-catering for several days. Carrefour Express sits in between, more central and more expensive than Biedronka but with a wider stock than Żabka.
My rule: Żabka for the coffee, the hot dog, the Sunday emergency and the late-night beer. Biedronka or Lidl for a real grocery shop, cheap water, snacks to bring home and anything you are buying in quantity. If you are staying in an apartment with a kitchen, do one Biedronka run early in your trip and let Żabka handle the daily gaps.
One more thing worth knowing about the discount shops. Both Biedronka and Lidl run app-based loyalty deals in the same way Żabka does, and the discounts are steep, often half price on flagged items only if you scan the app. If you are here long enough to shop twice, the ten minutes it takes to install the Biedronka app is worth real money.
The insider move
Here is what actually saves you the most. Install the żappka app on your first morning, buy your coffee there instead of at the first café you see, and let it stamp your way to a free one by day three or four. Then, on your first full day, walk to the nearest Biedronka, not the nearest Żabka, and buy your water, snacks and anything you want to carry home in one go. You keep the frog on the corner for what it is genuinely best at, which is being open when you need it and nowhere else is. That single split, cheap shop at Biedronka, convenience at Żabka, quietly cuts a chunk off what most visitors overspend on food and drink without noticing.
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