Latest update fixed crashes

Update: using current version on iOS 9.1 on iPhone 6s. No crashes anymore. I wish it always opened in History instead of Reminders, but otherwise a very useful and easy app.
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Very useful app for tracking the meds I take, but April 2 update has been a problem. App works fine when first opened, but it frequently freezes when I go back to it when its in the background. Then it must be closed and reopened. Quite frustrating! Using paid app on iPhone 5 running ios 7.1.2.

CNTxFan about Pill Monitor Pro, v4.0