Save anything. Ask anything. Find everything. Siftlee is the AI second brain app for iPhone.

Save screenshots, links, X posts, Reddit threads, PDFs, and voice notes in one place. Siftlee reads and understands everything, organizes it into Spaces and Threads automatically, and answers your questions with sources from your own library. No folders. No tags. No digging.

Free to try — no account gymnastics, no card required.

01

SAVE IN A FEW TAPS

SCREENSHOTS, LINKS, X POSTS, REDDIT THREADS, PDFS & VOICE NOTES

02

AUTO-ORGANIZED FOR YOU

NO FOLDERS. NO TAGS. NO FILING.

03

DON'T SEARCH — JUST ASK

ANSWERS WITH SOURCES FROM YOUR OWN LIBRARY

Siftlee app icon

Download Siftlee for iPhone

Free to try with 4 saves and 4 searches — no card required. Premium unlocks links, documents, audio, and unlimited saves.

Screenshots

What your second brain looks like

The thought you couldn't find? Siftlee has it — Spaces library on iPhone No folders, no tags — Siftlee organizes saved content into Threads automatically A Siftlee Thread for every rabbit hole: X posts, articles, Reddit posts, screenshots, and PDFs together Don't search, just ask — Siftlee answers questions about your saved content with sources Everything summarized — Siftlee auto-generates a summary and highlights for a saved PDF

How It Works

From saved to found in four steps

1

Save from anywhere

Share screenshots, links, X posts, Reddit threads, PDFs, and voice memos to Siftlee from any app with the iOS share sheet — Safari, Photos, Voice Memos, Files, anywhere.

2

Siftlee understands it

It reads the text in your screenshots, transcribes your audio, summarizes your documents, and captures what each save actually means — with a link back to the source.

3

Organized automatically

Related saves are grouped into Spaces (like Food or Health) and Threads (like “Sleep plan ideas”). No folders, no tags, no manual filing — ever.

4

Just ask

Ask in plain English — “what was the sleep protocol I saved?” — and get a direct answer with cited sources from your own library, not a pile of links to dig through.

Guides

Fix the mess you came here to fix

Screenshots

How to Organize Screenshots on iPhone (Automatically)

Stop scrolling a camera roll with 2,000 screenshots. Let AI file every screenshot for you.

Read the guide →
Screenshots

How to Search Screenshots by Text or Description on iPhone

Find any screenshot from what you remember about it — a phrase, a topic, a detail.

Read the guide →
Read It Later

The Best Pocket Alternative in 2026 (That Does More Than Articles)

Pocket is gone. Here's how to save articles — plus everything else — in one place.

Read the guide →
X / Twitter

How to Save Tweets Before They Get Deleted

Keep a permanent, readable copy of X posts — even after the original disappears.

Read the guide →
X / Twitter

How to Organize Your X (Twitter) Bookmarks

Turn an endless, unsearchable bookmark list into an organized, askable library.

Read the guide →
Reddit

How to Find Your Saved Posts on Reddit (and Never Lose One Again)

Reddit's saved list is a black hole. Here's how to actually get posts back.

Read the guide →
Documents

The Easiest Way to Summarize a PDF on iPhone

Get a summary and highlights for any PDF the moment you save it.

Read the guide →
Audio

How to Search Voice Memos on iPhone by What Was Said

Transcribe voice memos automatically and find them by their content.

Read the guide →
Second Brain

What Is a Second Brain App? (And Why AI Changed the Answer)

The second brain method, explained — and why you no longer have to do the filing.

Read the guide →
Recipes

How to Organize Recipe Screenshots and Saved Recipes in One Place

Recipes from Instagram, TikTok, blogs, and screenshots — findable when it's time to cook.

Read the guide →

FAQ

Questions people actually ask

What is an AI second brain app?

An AI second brain app is one place to keep everything you find — screenshots, links, articles, PDFs, voice memos — where AI organizes it for you and brings it back when you ask in plain English. Siftlee saves both the content and its meaning, so you can ask “what did I save about Sicily?” and get an answer with sources. Learn more

How does Siftlee organize screenshots without folders or tags?

Siftlee reads every screenshot you save — the text, the subject, the source — and automatically groups related items into Spaces (broad categories like Food or Travel) and Threads (specific topics inside each Space). You never create a folder, add a tag, or file anything manually. Learn more

Can I find a screenshot if I only remember what it was about?

Yes. Search in plain English — “the recipe with miso” or “that chart about sleep” — and Siftlee finds the screenshot by meaning, not by filename, date, or album. It works even months later, when you only remember a detail. Learn more

Is Siftlee a good Pocket alternative for saving articles?

Yes. Like Pocket, you save articles and links in one tap from the iOS share sheet. Unlike Pocket, Siftlee also keeps screenshots, PDFs, and voice memos, summarizes what you save, and answers questions about your whole library with cited sources. Learn more

What happens to an X post I saved if the original is deleted?

Your copy stays. Siftlee saves X posts through the official X API, so if the post is deleted, the account goes private, or the thread disappears, your saved copy and the meaning Siftlee extracted from it remain in your library. Learn more

Can Siftlee organize my X (Twitter) bookmarks?

Yes. Share any X post to Siftlee and it is filed automatically into the right Space and Thread, becomes searchable in plain English, and survives deletion — no bookmark folders or Premium subscription on X required. Learn more

How do I find Reddit posts I saved months ago?

Save Reddit threads to Siftlee with the share sheet as you browse. Later, ask in plain English — “that Reddit thread about sleep supplements” — and Siftlee returns the answer with the saved thread as the source, instead of you scrolling an unsearchable saved list. Learn more

Can Siftlee summarize PDFs and long documents?

Yes. Save any PDF, Word file, or text file and Siftlee generates a plain-English summary with highlight bullets, keeps the original document attached, and makes the whole thing searchable and askable. Learn more

Does Siftlee transcribe voice memos so I can search them?

Yes. Audio you save — voice memos, podcast clips, recordings — is transcribed and understood, so you can search for what was said and ask questions about it later. Learn more

How do I keep recipes from screenshots, links, and videos in one place?

Save them all to Siftlee — recipe screenshots, blog links, social posts. They are grouped automatically into your Food Space and related Threads, and you can ask “the pasta recipe with miso” to get it back instantly. Learn more

Is Siftlee free?

Siftlee is free to try — you get 4 image or screenshot saves and 4 searches, no payment details required. Siftlee Premium unlocks every source type (links, documents, audio) and removes all usage limits, with weekly, monthly, and annual plans. Download free

What can I save to Siftlee?

Images (screenshots, photos, anything from your camera roll), links (articles, X posts, Reddit threads, anything with a URL), documents (PDFs, Word files, text files), and audio (voice memos, podcast clips, recordings) — all from any app via the iOS share sheet. See how it works

Stop losing the things you meant to keep

Save it once. Siftlee remembers what it means, where it came from, and hands it back the moment you ask.

Download on the App Store