You can store your downloads in your account when you signup!
A woman sits on a couch in her comfy living room. The lounge has brown and purple tones. She takes out her phone and looks at your app or design in this iPhone 6 mockup. If you have a casual, social or even gaming app, this stage is for you. She holds the iPhone 6 mockup in portrait mode, so make sure to upload a jpg or website that fits this aspect ratio.
Drag & drop not supported, but you can still upload via this input field: