There are many alternatives to Zootool for iPhone and since it's discontinued a lot of people are looking for a replacement. The best iPhone alternative is Raindrop.io, which is free. If that doesn't suit you, our users have ranked more than 10 alternatives to Zootool and six of them are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to Zootool are Diigo, Refind, Are.na and Tizmos.
Capture and organize bookmarks and associated content like articles, photos, and more with Raindrop.io. Enjoy real-time collaboration, privacy focus, web clipper, and sync across devices without ads.
Save web resources, annotate pages and PDFs, highlight and add sticky notes, organize collections with Outliner, sync across devices, filter by tags and folders, share with groups, and access advanced search and flexible privacy for individual or collaborative research projects.
Are.na is: for researchers, artists, designers, knowledge collectors and autodidacts.
FFFFOUND! is a web service that not only allows the users to post and share their favorite images found on the web, but also dynamically recommends each users tastes and interests for an inspirational image-bookmarking experience.
Kazakhstan
United States
It let's you save images (among other things), contains lots of interesting & inspiring content, which you can add ("connect") to your own 'channels' - the social aspect. It still needs few features to be closer to the great ZooTool, like most popular dily 'blocks' (equivalent of zootool's most popular daily images), UI tweaks - because it's really basic for now, more options for displaying saved content, etc.