iReDial is NOT an automatic dialer.
It simply notifies the user of the phone calls you decided to postpone. At the proper time of the notification, the user decides whether to confirm the call.
This is also due to a precise Apple policy, that we agree upon, that asks for the user confirmation before any dialing. It is also a security facility to keep the people's privacy protected.

Choose a number to dial first:

• You can directly enter the phone number: press the keypad icon at the bottom right and type the number.
• You can also choose a contact and select the number to dial: press the contacts icon at the bottom and choose your phone number.

When you’re done you then choose the delay for your call.

You have two options:
1) you may use the slider and adjust your delay. Press then the button with the iReDial icon
That’s it. At the proper time a notification will alert to call: click the notification and with a couple of taps you’ll make your call.
2) you may choose any day/time you wish for your call. Press the button with the iReDial icon inside the calendar.
Please follow the several choices that the app prompts.