Green Screen Studio is a mobile app that allows users to apply Chroma keying, also known as color keying or color separation overlay, to their photos and videos. The app features green, red, and blue tones to key out objects from photos or videos. With this app, users can easily change a monochromatic background into any image they wish.

Users can select an image or video from their phone or use a live camera to remove the green, blue, or red background using the Chroma key technique
The app also allows users to add custom backgrounds using the Chroma key effect and adjust editor settings to create stunning images and videos with cool backgrounds

Users can share their creations with friends on various social media platforms. Overall, Simple Green Screen Effects is a user-friendly app that provides a fun and easy way to apply Chroma keying to photos and videos.

Developer information: The "Green Screen Studio" app was developed GV Apes, an indie developer. The developer has a track record of creating high-quality and user-friendly apps, and is committed to providing excellent customer support and regular updates to the app.