Smartphones are potentially the best way for insulin-dependent diabetics to calculate the bolus insulin requirement for a carbohydrate meal. An FDA official reported at an American Association of Diabetes Educators that the insulin dose calculated by many common apps could be wrong. This could lead to dangerous or even fatal hypoglycemia. Currently the only FDA-approved app is the Accu-Check Connect app. The app uses data as set up on the patient's Accu-Chek by a health care provider. Undoubtedly other apps are being developed for other glucose meters. WFCR MD has no connection to the manufacturer of this device or any other such device.