Stacks

Save it once. Find it again.

Stacks is an iPhone app for people who save more than they can keep track of. Send a link from Instagram, TikTok, Pinterest, Reddit, YouTube, X, Facebook or Safari — Stacks reads it, works out what it is, and files it somewhere you'll actually find it.

No account. No sync to anyone's server. Everything happens on your iPhone.

What it does

• Saves from anywhere. A share extension picks up links from any app that can share a URL.
• Understands what you saved. Titles, summaries, categories, tags, brands, places and recipes, pulled from the page itself.
• Organizes itself. Related saves cluster into collections — "Things to do in Kyoto", "Japanese Recipes", "Coffee Shops" — without you filing anything by hand.
• Searches by meaning. "sushi in tokyo" finds a save tagged Japanese in Tokyo, even when those exact words never appear.
• Map, calendar and reminders. Places you saved appear on a map, and anything time-bound can become an event or a reminder.

Apple Intelligence, where you have it

On iPhones that support Apple Intelligence, your saves are analyzed by Apple's on-device language model — better titles, sharper tags, more useful summaries. On every other iPhone, Stacks falls back to a fast on-device analyzer instead.

The quality differs. Whether your save works does not. Nothing is sent to a server for analysis either way, and the app tells you which mode it's using.

Private by construction

Stacks has no accounts, no analytics, no advertising, no tracking and no third-party SDKs. Your saves live in a database on your device. We have no servers, so there is nothing for us to collect — and nothing for us to lose.

The one outbound request the app makes is fetching a page you chose to save, to read its title and cover image, exactly as your browser would. The Privacy Policy spells this out in full.

Requirements

iOS 26.0 or later, on iPhone and iPad.