Early development builds of Sonic Jump, Sonic and Sega All-Stars Racing, and Sonic Dash have been found.
This was after the builds on a content delivery network for TestFlight, a previously independent beta-testing system for iOS, were released to the public.
Described at a similar scale to Nintendo’s prototype “gigaleak” in 2020, the database contains terabytes worth of in-development and unreleased iOS apps.
As fans continue to dig through the database, the apps, dating from late 2012 to 2015, may give us a wealth of information on how popular Sonic mobile games like Dash took shape.