Except none of that is actually true - they're just made up smears and conspiracies. Be careful what news sources you consume.

The NHS "centralised" app would have worked and worked fine IF they could have made the Bluetooth feature it relied on work properly. But this was always going to be impossible given what every mobile app developer already knows about the platforms. Whilst the NHSX app did have some ingenious ideas in it - it was not enough to get around the platform limitations enough to provide a working solution.