When taking photos, choosing a suitable software can greatly improve the quality and aesthetics of photos. Instagram is a popular social photo sharing application with powerful filter function. Snapchat is a social application based on real-time video and photo sharing. VSCO is a professional photography post-processing application, which has rich filters and adjustment functions. Lightroom is a professional post-processing software for photography, which can be fine-tuned and decorated. Camera+ is a photography application specially designed for iPhone, with multiple shooting modes and special effects.