MultiTab for Tumblr

MultiTab for Tumblr is a third-party Tumblr browser from Concerto that opens every feed in its own tab, much like a web browser. Tabs can be closed individually or in bulk, revisited through a tab history, and synced across devices with iCloud, while the tab bar hides as you scroll. Feeds can be viewed in a Grid layout for fast scanning or a Detail layout for full-size posts, and you can switch between the two with gestures. FeedSets and FeedFilters let you build your own collections of blogs. The app leans heavily on media: a full-screen viewer scrolls through every photo and video in a feed, with slideshow and shuffle modes, and batch download saves images and videos in bulk. It also supports multiple accounts and offline posting, and runs on iPhone, iPad and Mac. Because it relies on Tumblr's public API, some features such as asks, fan mail, notifications and tag tracking are unavailable. The app is free with optional in-app purchases, and the same developer makes MultiTab apps for other services. Version 8.1.8, released October 21, 2026, lists iPhone Duo support without further detail.

Features

• Every feed opens in its own tab, with tab history
• Grid and Detail layouts
• Custom FeedSets and FeedFilters
• Batch download of images and videos
• Full-screen media viewer with slideshow and shuffle
• Multiple accounts and iCloud tab sync

The developer's release notes for version 8.1.8 (October 21, 2026) state simply that the app supports iPhone Duo. No fold-specific layout or outer-display feature is described, so it is listed as Compatible. DuoDiscover has not yet tested MultiTab for Tumblr on an iPhone Duo.

MultiTab for Tumblr is developed by Concerto.

Official website: multitabapp.github.io