Black Magic

Black Magic began as a script that drew a progress bar around Dinh's Twitter profile picture as he approached 1,000 followers, then became a web app with a $4 a month Pro plan. Its Magic Sidebar Chrome extension added analytics and CRM features inside Twitter, and the product was repositioned around it.^{Source [1]}

Dinh reported it grew to $4K MRR by February 2022, $13K MRR by October 2022 and about $14K MRR at the time of sale; these figures are self-reported. He said he had turned down a $500K offer about three months before the sale.^{Source [1]Source [3]}

When Twitter told developers the new enterprise API would cost at least $42K a month, Dinh sold the business to Hypefury, founded by Samy, for $128,000. Customers had to re-authorize under Hypefury's Twitter app, and Dinh agreed to keep working on the product for at least a year.^{Source [3]Source [2]}

BlackMagic.so now states the product shut down on July 1, 2026, and that active subscriptions were cancelled.^{Source [4]}

Tony Dinh started Black Magic in May 2021 as a profile progress-bar tool and pivoted it into a Twitter analytics and CRM product built around the Magic Sidebar Chrome extension. After Twitter announced paid API pricing in 2023 he sold it to Hypefury for $128,000. Its site now says the product shut down on July 1, 2026.^{Source [1]Source [3]Source [2]Source [4]}