What is the Cost to develop an app like Tumblr? Tumblr is perhaps one of the most successful microblogging services in the world over the past decade. By 2018, its intensive growth was the subject of debate among business and IT professionals. Nevertheless, although it has lost some resources since 2018, it is still one of the largest and most successful websites in its segment . Tumblr combines the power of social networks and microblogging platforms. This allows users to publish anything at any time they want. This format allows anyone to share any content: links, music, photos, videos, text messages, files, etc. From there, the app is using the client's desktop, browser, phone number and email.