
Danaus
FreeDuo-native
Upcoming occasions beside each person's gift ideas
On the Duo: Duo-native. Version 2026.10.1 (24 October) added iPhone Duo support, its release notes say; its maker's site shows the collection and an open binder on the open Duo. Checked November 5, 2026.
App Store data as of October 27, 2026

Anyone who wants to message other collectors directly: by design there are no DMs or comments.
Route 25 combines a social feed for pulls and graded slabs with a trading hub built on listings, offers and trainer reputation. Your collection covers variants and sealed products, with market values, trend data and master-set checklists that show missing cards in grayscale. Binders can be styled, set to 4 or 9 pockets and flipped page by page. There are short memory and recognition mini games for XP, Home Screen widgets, Live Activities and Siri support, and Trainer Plus adds extra trade slots, lower fees, a card scanner and more stats. There are no direct messages or comments.
On the iPhone Duo the app uses a redesigned layout for each screen size and orientation, and a binder keeps your place when you close and reopen it. You choose whether folding shows the binder's cover or leaves the page you were on. Its maker shows the collection beside an open binder on the Duo.