Your source for geographic locations of countries might be contentious especially for countries that are within multiple regions, and your developing / developed status is definitely so. I would love to see your data sources on that.
Consider using direct sources like the CIA World Factbook instead of Wikipedia. I took a cursory look at your data and I’ve spotted a few inaccuracies fairly quickly. Getting basic facts wrong about a country doesn’t inspire confidence about the freshness of the visa information.
What is the data source? For visa to Russia from Norway, the app says applicant must meet in person. However, the Russian visa center in Oslo is this: “If you don’t have an opportunity to come in person to one of the Russian visa centers to apply for a visa, you can do it by mail.”
Intesreting site, thanks for sharing. If it yours I strongly suggest improving performances on mobile as well as removing the top menu while scrolling if you want to keep the banner ad.
You’d want to do some proof reading and corrections. When I open the site, the title says “Visa rakings on the ...”. There’s a typo there on what should be “rankings”.
This is amazing! Nice way to visualise visa friendly countries on a map. Good job! Now visa list has become my go to site for finding visa requirements