Refined Twitter - A browser extension that improves the Twitter experience
Layout by Instagram - Combine multiple photos into a single image
Typefully - Write & publish great tweets, without distractions
Likecreeper - Randomly hit like on a friend's horrifyingly old Instagram
Tweet Tray - Tweet quickly from your desktop without any distractions.
Top Nine 2017 - Creates a collage of your top 9 Instagram posts for 2017