You are more than welcome to use additional parental control apps in tandem with OurPact, as long as they do not use MDM technology or a VPN to connect with child devices.
The MDM profile installed within iOS device settings is what allows you to enable the remote management of an application and device access. This is needed to send OurPact commands and features (blocks, grants, schedules, etc.).
Only one MDM profile can be installed at a time on your child's iOS device. Conflicting rules from multiple MDM profiles can confuse the device and result in a less-than-optimal user experience. Similarly, if a VPN is installed, you may find it interfere's with management.
If you have another parental control installed to your child's device already that you would like to remove or want to learn more about compatibility with OurPact, please reach out to our team at firstname.lastname@example.org for further assistance.