Saving is easy. Finding is the product.

Every saving tool demos beautifully on day one. The test that matters comes months later: a friend asks for that article about sleep, you remember saving a plumber's number in a voice note, you need the photo of a receipt from March. You have three seconds of patience. Do you find it?
This is why "where did I put it?" is the real product question. A pile of saves you can't search is a storage bill, not a memory.
What finding requires
Everything in one place. The moment your links live in one app, screenshots in another and voice notes in a chat, every search starts with a harder question: where do I even look?
Text, even for things that aren't text. A voice note you can't search might as well be silence. WhatLater transcribes voice notes and reads the text in photos, so "the note about the accountant" is findable by the word accountant.
Tags you didn't have to write. Nobody files things at save time — that's the whole reason piles exist. Tagging has to be automatic, and it has to be consistent.
Save with one gesture, find with one search — months later, in three seconds. That's the entire promise.