Fossify – A suite of open-source, ad-free apps

I use them and like them. One thing to be aware of with the dialer (that might not be unique to Fossify): when dialing the number of an emergency service (like 112 in Germany), there is no indication in the app's UI that something is happening and it looks as if the call failed and you will be back looking at the dial pad, even though the call will eventually be connected. The reason is that these types of calls get handled by something deeper in the Android system and will show up neither in the "calling" UI of the dialer nor in the list of calls.

My phone crashing when I dialed 911 after a car accident was the reason I stopped messing around with android roots and custom roms and whatnot. When it comes to my phone being a phone, I need it to Just Work(tm)!

I wish there was an easy way for the layperson to test dial emergency services without connecting to a real operator.

Maybe a different 3 digit number that goes through all the same hoops as 911 but it answers with an automated success message then hangs up.

Actually there is. You just have to schedule it. I keep meaning to do this with my home VOIP phone.

> Test calls confirm that your local 911 service can receive your 911 call and has the correct location information. Test calls can be scheduled by contacting your local 911 call center via its non-emergency phone number.

https://www.911.gov/calling-911/frequently-asked-questions/