Only the current version so far — new entries appear as the app ships updates.
Ambigram Studio 3.0 is an art & design app by Boondoggle Software with 100,000+ downloads (about 319K estimated). +30 installs in the last 7 days. Rated 3.9 from 1.3K ratings. Released Jan 30, 2017. Install growth, rank history, SDKs and ad networks.
From the store listing: “Create Custom Art with the Ambigram Generator or Choose Custom Ambigrams.”