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The completely rewritten new version indoorco2map.com App is now available for both Android and iPhone. It removes the biggest problems of the old App, especially location search which is now very reliable and also a lot faster (usually <1 second) but also features dozens of small improvements. 1/n

Here are the download links, first iPhone: apps.apple.com/us/app/indoo... and secondly for android: play.google.com/store/apps/d... Following are the most important changes:

As just mentioned. The location search has been a weakpoint of the old app, it was slow and especially lately very unreliable, often needing a few attempts to get a result. It relied on a public free API which was easy to use and had no cost at all.

The new app now is using my own (cloud-hosted) backend - while not free, I found a rather inexpensive solution to do it, which I might write about in a separate thread.

The only disadvantage of the new system is that it is only updated daily, however for the rare cases where user themselves add new locations to OpenStreetMap which they instantly want to measure, the previously used public API can be optionally be enabled in the Settings menu.

A small but useful addition is that Location Results can now be sorted by alphabet or distance and there is also a search field, handy in places with numerous results like large malls.

Transit Mode now features a map preview of the selected transit line - this is especially useful as some lines have non-intuitive names not related to train numbers (especially for long distance routes).

The old map only took around 2 hours of data from the sensors (longer if not set to 1 minute but longer intervals. In the new App there is no such limit anymore and you can theoretically record a whole week or longer - although I hope you don’t end up being stuck in a supermarket for that much time.

(support for the Airvalent sensor currently is still limited to shorter measurements, but I hope to add solve the issues I have there currently soon).

A history page has been added which shows all your own recordings. This is stored locally on your phone, it can be exported to a file and imported on other devices - so you can keep your data if you change phones etc. This feature can be disabled in the settings.

There is a still very much work in progress statistics screen, a news page, many settings in the settings menu to customize the app to your likings and also a usually invisible alert if there are major outages with the database or other systems required for the app to work.

Finally the app has a bit more polished look and I hope you enjoy using it a bit more than before. I want to thank everyone who tested the preview versions of the new app, without you the app would not be ready for release already!