Mockups a collection of ready-to-use UI controls

[pmi]

Library Mockups - a collection of ready-to-use UI controls
 

- IOS object

- Android Object

 

Create collections of custom objects

 

[MEB]

Hi pmi,

You can open/import most of those being distributed on the net in Affinity.

Later you should also be able to store and access your own custom objects trough the Media Browser (menu View ▸ Media Browser...).