Ireland has taken its first leap into the world of coronavirus tracing apps. Other countries which have launched Covid-19 contact tracing apps have had mixed experiences so far.
In Germany, the uptake was 20-25%. Norway pulled its tracing app after concerns were raised by the data privacy watchdog there and the UK has ditched its original app in favour of something new in the autumn.
The key to the success of any such app is uptake. Irish health officials say an uptake of about 60% is good, although any uptake has its benefits.
Tracing apps do not replace a solid manual test and trace system, but they offer an extra element to trying to keep the virus at bay.