That’s а free animated mockup that you can use in Photoshop, no After Effects or similar soft needed.
Also, you can export each frame separately as a static mockup, there are 60 unique frames at resolution 1600 x 1200 px. Change content by using the smart object. Just save your PSD as GIF or export as any video format.
- 1600x1200 px
- 60 frames