Are there recurring costs for using the OvaCue?
No. There is nothing more to buy with your OvaCue (except replacing the battery) and it can be used safely for many years. • What does the OvaCue measure? The changes in electrolytes in salivary and vaginal fluids that signal the onset and completion of the ovulatory process. Cue II vs OvaCue vs ClearPlan • Cue II vs OvaCue: What’s the difference? The OvaCue and the Cue II both use Zetek’s patented Electrolyte Method for measuring changes in the body associated with ovulation. They use exactly the same sensors. The OvaCue is a significant advance in that it automatically performs the calculations for predicting and confirming ovulation and reports a visual indicator of your fertility status for the day and a projected date of peak fertility. Using the vaginal sensor, it also reports an unambiguous confirmation of ovulation. With the Cue II, you jot down daily readings on a Cue Chart and interpret the pattern according to instructions. Keeping and interpreting a chart is not difficult,
