Perhaps it is, but keep in mind that the official count of infected is around 300.000, so 25% of that was detected by the app.

If the number of infections that were not detected are double the 300.000, then we are fast approaching 10% of all infections detected.

But anyway Denmark spend 60 times the budget for the app on testing each month in 2021, so it's pennies the app has cost.

But i still think it worthwhile to know what the taxpayers get for their money.