Tracking apps have a definite risks in terms of security and/or privacy (Especially when there are some errors) but it also has its benefits.
The largest questions to me are
- Is it voluntary (If yes, good!)
- Will the system get shut down after the crisis has concluded (Including deleting personal traceable information, except if there is an explicit, optional opt-in).
My country has some plans for an app but so far we don't have a decent candidate that meets our requirements. So the government ended up developing one from scratch (Which will take some time to complete) but its important that we all accept the benefits but stay aware from the risks that an app can create.
For example the China approach is slightly... Dystopian to say the least if it comes to feature creep
The largest questions to me are
- Is it voluntary (If yes, good!)
- Will the system get shut down after the crisis has concluded (Including deleting personal traceable information, except if there is an explicit, optional opt-in).
My country has some plans for an app but so far we don't have a decent candidate that meets our requirements. So the government ended up developing one from scratch (Which will take some time to complete) but its important that we all accept the benefits but stay aware from the risks that an app can create.
For example the China approach is slightly... Dystopian to say the least if it comes to feature creep
In my country they actually (silently) killed the concept of the app. ^-^ But things are well under control right now so that's a good thing! 
Technology always has great value, but requires great responsibility and has great risks, especially combined with medical information and the decision on how long it's stored. It's better to delay it than to do it the "wrong way"
That said, in my country the general testing is available and everything is very much under control In my province less than 1% of the test are positive and the majority of the people hospitalised where transported from other places earlier during the crisis
But yeah, the GGD's (The government organs that handle the contact research) can handle the contact research quite well!
Here are a few figures of the total IC's in use. The first figure is the new people that are being accepted with Covid19, the second one is the total number being treated.
Source: RIVM
At this moment I'm more afraid of a second wave, but it's very much under control and people/organizations are following government recommendations so it's fine ^-^
I think every country initially underestimated the situation, I still remember the day of the "Would be" formal announcement of a crisis and for the initial "intelligent lockdown" preparations. And our lockdown wasn't strict at the very least but the mindsets of the average employee suddenly switched from "Doing your job" to "Adjust to the new situation" in a snap of a finger.
In my case I went from paperwork (Writing manuals, proposing changes etc.) to preparing laptops in a matter of seconds. The team was -extremely- oiled. That was two hours before it was officially announced (There where rumors, and we where told to prepare for the worst case scenario during the first press conference).
That said, up until this day I'm extremely happy with what I was set up, and how my team did take over what I left behind in times of crisis to assist other teams ^-^
...Even though there was no outbreak in my area, I'm quite sure that I would have been infected if it wasn't for the measures in place So looking back I'm happy with the advice the government did give, and all organisations that honoured the advice otherwise we would have major issues over here, and believe me when I say that it was -really- tight. (People where transported from the south to hospitals all over the country using special ambulances).
I have a deep respect for the military, healthcare personnel and the police trying to coordinate it while saving as many lifes as possible ^-^ Some people had to make horrible decisions.
But back to the app, I don't think that an app is a solution but it's a tool that can be used. The best way is to stay out of crowded places wherever possible and work from home if your job allows it.
In my case if I have to go to the office it means cycling and not using public transport. And if I have visit I prefer to keep it with only one other person at a time Taking responsibility on a personal level is the way to contain the virus until a vaccine is available - Which will most likely be early next year for the earliest group of people (Healthcare workers and risk group first, after that the other critical functions before general availability).
In my case I went from paperwork (Writing manuals, proposing changes etc.) to preparing laptops in a matter of seconds. The team was -extremely- oiled. That was two hours before it was officially announced (There where rumors, and we where told to prepare for the worst case scenario during the first press conference).
That said, up until this day I'm extremely happy with what I was set up, and how my team did take over what I left behind in times of crisis to assist other teams ^-^
...Even though there was no outbreak in my area, I'm quite sure that I would have been infected if it wasn't for the measures in place
So looking back I'm happy with the advice the government did give, and all organisations that honoured the advice otherwise we would have major issues over here, and believe me when I say that it was -really- tight. (People where transported from the south to hospitals all over the country using special ambulances). I have a deep respect for the military, healthcare personnel and the police trying to coordinate it while saving as many lifes as possible ^-^ Some people had to make horrible decisions.
But back to the app, I don't think that an app is a solution but it's a tool that can be used. The best way is to stay out of crowded places wherever possible and work from home if your job allows it.
In my case if I have to go to the office it means cycling and not using public transport. And if I have visit I prefer to keep it with only one other person at a time
Taking responsibility on a personal level is the way to contain the virus until a vaccine is available - Which will most likely be early next year for the earliest group of people (Healthcare workers and risk group first, after that the other critical functions before general availability). 
