After you've customized your post, you'll be on the final "Caption Your Post" screen where you can add your caption, relevant hashtags, and select where you want to share your creation. 

Tapping "Schedule Post" will allow you to pick a date and time for your post to share. The final "Share" button should change to "Schedule" once you've successfully scheduled your post. 

Instagram Note: Instagram does not allow apps to post videos on your behalf. If you schedule a post to go to Instagram, we will send you a notification at your scheduled time to remind you to complete the post. If you have notifications turned off for Ripl, you won't see this prompt! We copy the caption you entered in Ripl, so simply tap the notification to open Ripl, then tap "Launch Instagram" and you'll be taken directly to the posting screen in Instagram. 

Unschedule / Reschedule: Tap on the post from the calendar to open the "post details" where you can tap the calendar icon on the video thumbnail to unschedule or re-schedule the post.