Requires Bluetooth Activation
Users must have Bluetooth enabled on their devices for the app to function effectively, which may be seen as a barrier for some.
Limited Scope of Use
The app is primarily effective when a significant number of the population uses it, limiting its effectiveness in areas with low uptake.
Dependence on User Accuracy
The effectiveness relies on users accurately reporting their COVID-19 status, which can be inconsistent.
Regional Availability
Currently, the app is only available in the Netherlands, limiting its use for expatriates or travelers outside the country.
Battery Consumption
Continuous use of Bluetooth can lead to increased battery drain, which might be problematic for users with older devices.