A profile of Tapbots founders Paul Haddad and Mark Jardine; ex-Twitter exec Amir Shevat says ~17% of engagement on Twitter historically was via third-party apps
After Elon Musk killed their Twitter app, two software developers in the North Texas suburbs are trying to shape the future of social media.
Context & Ripple Effects
Tapbots built Tweetbot into one of the flagship third-party Twitter clients, part of a developer ecosystem that former platform product leadership had already been describing as eroding even before the acquisition — abandoned plans like custom timelines signaled where developer trust was heading. Then Elon Musk terminated the app outright.
The profile matters because of what Amir Shevat's number implies: if roughly 17% of historical Twitter engagement flowed through third-party apps, Musk didn't just cut off two North Texas developers — he severed a meaningful slice of usage. That displaced audience and builder energy is exactly what T2 pitched itself at earlier this year, and what Meta's secretly built Twitter-like service is now positioned to absorb.
First-order effects
- Paul Haddad and Mark Jardine lose their core product overnight, forcing Tapbots to rebuild its business around something other than a Twitter client.
- Twitter forfeits the engagement Shevat estimates at ~17% that ran through third-party apps, concentrating all usage on its own first-party surface.
Second-order effects
- Rivals compete for what Musk released: T2 courts users wanting a "2007 Twitter" feel, while Meta's internally developed Twitter-like service positions itself as the institutional landing spot for displaced builders and audiences.
- Other surviving Twitter-ecosystem developers face the same revocation risk, accelerating exits from a platform where API access is no longer a stable contract.
Third-order effects
- If access can be cut this abruptly at the whim of an owner, third-party client ecosystems stop being viable businesses atop closed platforms — pushing independent social development toward new platforms or protocols rather than incumbents.
- Control over the access layer becomes a competitive weapon: whoever hosts the open surface where developers like Tapbots land captures both their products and their audiences.
The trend: Post-acquisition Twitter is collapsing its third-party app layer, scattering a once-significant slice of engagement toward upstarts like T2 and Meta's clone while teaching developers that client access is revocable.