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Tech Wrench

System Design Interview: Instagram or a Similar App (Snapchat, Flickr, Picasa) Design

Photo-sharing apps


Instagram is one of the most popular photo-sharing app today, with around 1 billion monthly active users according to Statista. Similar services, such as Flickr, Picasa, Pinterest and Snapchat also have their fair share of following. The basic purpose of such apps is to upload and share pictures with…




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Person holding colored pencil. Photo by Neven Krcmarek on Unsplash.

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