BlueOakINTERACTIVE

A small studio in Oslo making calm Android references: one country, one craft or one collection per app, all of it kept on the device and working with the phone in flight mode.

The app

Bykart

The towns and cities of Norway.

From the harbours of Bergen to the Arctic light of Tromsø, Norway's cities each have their own character, and Bykart brings them together in one calm, offline guide. The catalogue is photo-forward and plainly written, in both Norwegian and English, so it works for a local, for a newcomer learning the language, and for a traveller planning a trip.

Every place

A facts panel, and a map to tap

Every city opens to its region and county, a sense of its size, what it is known for and the landmarks that define it, laid out with simple drawn icons, plus a "good to know" note on the best time to visit. The whole country is arranged by its natural regions, so you can narrow to one part of Norway, search by name, or tap a stylised map and see everything a region holds at a glance.

A travel diary

Tick the map as you go

Visited

Mark the cities you have actually been to and watch a completion ring fill across the map.

Wishlist

Keep the ones you still want to see, star favourites, and read per-region counts of where you have and haven't been.

Quiz

Name a city, place it in its region, or match it to what it is known for, with your best score kept.

Switch freely between Norwegian and English, pick your starting region and accent colour, and carry the country in your pocket. Completely offline, with no account and no ads.

Get Bykart on Google Play Package com.nordby.bykart

A guide, not a road book. Bykart describes places; it does not plan journeys, check ferries or know the weather. Norwegian distances are long and the winter is serious, so for a real trip use official route and traffic information, check mountain-pass and ferry status before you set out, and take the conditions seriously above the Arctic Circle. Emergencies in Norway: 112 for police, 113 for an ambulance, 110 for fire.

Working out

How long is Norway's coast? It depends on your ruler

The mapping authority counts 28 953 km of mainland shore and another 71 963 km around 239 057 islands: 100 915 km in all, about two and a half times round the equator. Those numbers are not a measurement error, they are the coastline paradox. Shrink the ruler and a jagged shore gets longer without end. Here is the effect on a coast we can generate exactly, so the arithmetic can be checked.

2.37×the straight-line distance, measured
1.262fractal dimension of this shore
+20%added by halving the ruler

A smooth coast has dimension 1 and stops growing; a shore of fjords inside fjords approaches 2 and grows without limit. Norway sits near the top of the real-world range, which is why the same country can honestly be described as 2 500 km long or 100 000 km long depending on what is being counted: the outer line, or every bay, sound and skerry.

What's not here: no cities, no regions, no map of Norway and no quiz. The curve on the left is a generated shore, not a chart of anywhere real: it exists so the growth can be computed rather than asserted. The 100 915 km figure is quoted from the national mapping authority, not measured here.

BlueOak Interactive, on paper

Published by
Bani Younes, sole proprietor, trading as BlueOak Interactive
Responsible
Ghada Khalifah Saleh Bani Younes
Address
St. Halvards gate 22, 0192 Oslo, Norway
Email
byen@baniyounes.rent
Privacy
What Bykart does with your data
Rights
© 2026 Bani Younes. Texts, drawings and the guide itself are ours.

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