Apple reportedly tests an app to manage blood sugar The VergeApple Secretly Tests Blood-Sugar App in Sign of Health Ambitions BloombergApple Trials Prediabetes App, Eyes Future in Glucose Monitoring Tech Yahoo FinanceApple is testing one of the ‘biggest’ heath feature for its devices The Times of IndiaWhile high-end sensors for Apple Watch that could monitor Blood Glucose remain elusive, Apple has been testing a prediabetes managing app Patently Apple