Before revision:  Results suggest that the app can contribute substantially to the reduction of infections in the population  , although complete suppression of the virus is unlikely to be achieved. The model also shows that, while adopting the app is beneficial for epidemic control in most cases , a high adoption rate is likely to generate an extensive increase in the demand for testing, which, if not met with adequate supply, may render the app counterproductive.
After revision:  Results suggest that the app can contribute substantially to the reduction of infections in the population , a high adoption rate is likely to generate an extensive increase in the demand for testing, which, if not met with adequate supply, may render the app counterproductive.