the link works on a desktop PC 
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It’s a browser app, so it should work on your computer. just click the link and it will open in a new tab. If it doesn’t work it could be because it is not compatible with your browser (but it should support most).
In the starting picture, the colors are actually: green=info about where they send to is available, red=country’s international mail completely closed because of covid, white=no info.
Once you click on a county, the colors will change to show: red=countries you cannot send to from the clicked country, green=everywhere else.
Great tool!
What I miss is a search button, that zoom you directly to the country of interest.
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ooh! that’s a great idea! It might be a bit of a challenge, but I’ll see what I can do.
Oops, sorry! Misunderstanding on my side. Reading “app” I assumed the link was going to a download page for a smartphone app. 
Works fine on my computer (Windows with newest Firefox 82.0.3 32-bit)
Thank you for the explanation of colors and how to get the countries from my country! I was about to ask for that because I noticed inconsistencies. Looks like I’m not into intuitive user interfaces… 
Before clicking on any country, I noticed that Cuba and Thailand are in red, according to your explanation that means all foreign mail services suspended. However, when I check on Postcrossing’s postal monitor, both are not listed for Germany, so it seems not all mail service is suspended… I checked the COVID-19 page of German Post, they agree that I can send postcards to both countries - to Cuba only up to 500g and 2cm thickness, to Thailand everything can be mailed, but parcels get a crisis surcharge. Once I click on Germany, Cuba and Thailand turn green. 
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Outgoing postal services are suspended.
Challenge is always a good pratice 
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“Intuitive” is subjective 
I’ll add legends to explain the colors. no harm in being more clear.
All the data is directly from the postcrossing monitor site, where Cuba is listed as having “suspended all their international inbound & outbound mail operations”. However, as the app works now, Cuba should not be red if you have clicked Germany (because, as you say, it is not listed under Germany on the postal monitor page).
I am considering changing this so that the “covid-blocked” countries are always shown as blocked even though they are not blocked specifically by the clicked country.
The odd thing is that German Post claims on their website that they can send mail to Cuba. Not sure what the best action on such conflicting information is.
Thanks so much for working on this! It’s complicated data.
FYI, Canada can send lettermail, international packets & parcels to Cuba currently.
FYI, I’m using Chrome on a Mac & clicking on the countries doesn’t work for me
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This is so cool!
When you click on a country with no data, like China, the rest of the world turns green, and the text tells you no data is available.
It might be clearer if the other countries go white rather than green - the people who are not inclined to read the text may mis-interpret this.
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So happy to see so many visits to my little app! thank you all!
I’ve been busy this weekend, but I’ll definitely post an updated version tonight or tomorrow
Thank you for the “bug-report” . It does work for me on a mac using Chrome, but I’ll look into why it doesn’t work for you.
This is great feed back. Thank you The issue is that I have no data about where the countries do send mail. only where they don’t, so I’ve been going on the assumption that they send everywhere that is not specifically listed. However, I agree that the countries with no sending info at all are an extra level of uncertainty. maybe I’ll use a lighter green or grey for the cases you mention.
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Just tried again now & it works for me - Thanks!
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App updated based on your input (still same link)
- map size fixed
- search bar added (but no map zoom as this got too messy)
- colors changed
- color legend added
- data updated + “last update” info added
To keep it more simple, I think I will change the app so that the first map you see already has a country selected. I might be able to get the app to detect the user’s country of origin, but this seems a bit invasive to me.
Question: Would you prefer that the app knew where you were from (using your IP address), or should it just start with a likely country (such as Germany) selected?
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No, I don’t think it’s necessary.
why not start with your country, as you developed it But I wouldn’t mind if no country is pre-selected (just as it is now).
It looks a lot nicer now! Good job
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Thanks again for your lightening-fast feedback
I have actually already updated the app to show Germany as the default selected country. It stands out more than Denmark (where I’m from) simply because it is larger, and it is nicely in the middle of the map (with this “Eurocentric” projection). Also Germany is one of the most active countries on postcrossing, so I feel like it is a good starting point.
I’m done for tonight, but tomorrow I might add a way to see and easily download the blocked countries in a list form.
I am still of course open to any suggestions and ideas. You have all been a great help with this!
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I did a few more updates.
The link in the first post still works, but you can also just click here:
https://mettetron.shinyapps.io/PostBlocked/
The app now asks if you want to share your location. If you allow this, it will automatically start with info about your country, otherwise you can just click or search for the country you want info about.
I have also added a downloadable table that gives you information on both sending and receiving mail.
Remember that this app is entirely based on info from Postcrossing’s postal monitor, so if any of the information is wrong you can let them know in this forum topic: :postcard: Mail Suspension Alerts
On the other hand, if you have any comments, suggestions or questions about the app, I would still love to know.
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Another quick feedback 
Wow, look at what you have done when you compare the first version with this one! It looks a lot more professional now. Great idea to make that list downloadable!
For the search country drop down it would be awesome if it would recognise when you type something, e.g. when you start typing S it would jump to the first country starting with an S
Having the choice between convenience and privacy is great.
edit: now it worked with typing… so never mind. It’s not too intuitive that you have to delete the text beforehand. Mostly it’s okay to just start typing.
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Thank you so much @Cassiopheia 
I’m glad you got the search bar to work. I will try if I can make it delete the default text automatically.
And I totally agree about the privacy. Although most websites automatically collect information about the users, I really don’t want to do that without consent.
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