This device is using the Android OS which means you can use all apps that have been released for the Android OS.
These apps are available here with installation guide at: How install IPTV on android devices?
But Formuler devices is popular because a dedicated app for IPTV which name is MyTV Online which installed by default on device.
This tutorial will show you how install IPTV on MyTV online.
This app works based on MAC address and connect via Portal URL , similar to MAG devices (Stalker)
Install IPTV on Formuler z7+
Open MYTV Online
1.Find mac address
Open Menu, select edit Portal or edit Service. The mac address shown on the top in ID section
You need provide this MAC address to your provider or enter it in your advanced IPTV dashboard in MAG section .
2.Enter Portal URL
Press + Edit Portal to add Portal URL
Enter an optional Portal nickname ( iptv in example) and add Portal URL (Which can be found in subscrption email after purchase)
3> Click OK
4> Connecting to (Portal name) Server MAG in progress.
5> Successful Connection! You receive all channels associated with your account.
6> Now Everything is ready and you can start watching Live TV.