You can delete your account in Yomify (Yomify: Habit Tracker Calendar on Google Play) and its data at any time.
Open Yomify and tap your profile picture (top left).
Open Profile.
Tap Delete account, then confirm.
Email TheBloggerBoy254+deleteAccountRequest@gmail.com from the email address you use for Yomify, with the subject Delete my Yomify account. We'll delete your account within 30 days and reply to confirm.
Your account (email address and password)
Your name and profile photo
Everything synced to your account: calendars, habits, marks and counts, notes, reminders, streak targets and settings
Records of the devices you used, and error reports
Records of Premium purchases, no longer linked to you, because financial records must be kept by law.
Deleting your account doesn't cancel a Google Play subscription. To stop paying, cancel it in Google Play under Payments & subscriptions.