The UK government are going to put it live, but it is treated with suspicion because of the personal security compromise that is the consequence of the apps acceptance.
Track-and-trace technology is being touted as a silver bullet that will allow economies to reopen and people to emerge from home confinement, with health authorities keeping tabs on the virus's spread.
But many fear personal data gathered by governments or companies in the name of pandemic control will be abused for political or commercial gain.
"If we are not careful, the epidemic might mark an important watershed in the history of surveillance," Israeli historian Yuval Noah Harari wrote in The Financial Times at the height of the coronavirus outbreak.
While fast-improving technology may be a welcome aid for public health officials caught off guard by the scale of the coronavirus crisis, the "downside is, of course, that this would give legitimacy to a terrifying new surveillance system", Harari argued.
Many countries have already introduced smartphone apps to track people's infection status and movements with the intent of alerting people who may have been in close contact with a carrier of the virus.
In some countries participation is voluntary, but in many it is not, in the UK it is still voluntary.
The European Commission has said data harvested through contact-tracing apps must be encrypted and cannot be stored in a centralised database.
In France, which has spurned tracing technology offered by Google and Apple, the CNIL privacy watchdog has approved a government-backed app that will be voluntary to download.
Opinion: Adoption in the UK will be not as high as the government are hoping for, as it's not just the short-term solution but the longer term goals of government tracing capabilities that is a worry.
What do you think? Comment below...