Oliver Seifert
1 extension 225 users in all First published 4 May 2026
Extensions are grouped by the store's own publisher account ID, so a developer who uses several accounts appears on several pages. Live extensions come first, most users first.
| Extension | Category | Users | Rating | Updated | Status |
|---|---|---|---|---|---|
| QuickCards | Education | 225 | 5.00 | 14 Aug 2026 | Live |