ShyVault
A private iPhone vault for photos, videos and documents that opens only with a pattern you draw.
What is ShyVault?
ShyVault is a photo vault app for iPhone that hides photos, videos and documents behind a pattern only you know. Every file is encrypted on your iPhone before it is saved, using keys made from your pattern. The app needs no account, email or sign-up, and nothing on your iPhone lists your vaults.
It is designed for people who want to keep personal files such as passports, contracts and medical records out of sight. Files can be imported from Photos or Files, or captured with ShyVault's own camera. Screenshots and screen recordings of the app come out black, and the vault closes as soon as you switch apps or lock your iPhone.
The main difference from Apple's Hidden album is that the Hidden album opens with your iPhone passcode, while ShyVault opens only with your pattern. Every pattern opens its own vault, and a pattern you have never used opens an empty one, so nobody can tell how many vaults you have. Free to start, with Pro available for unlimited vaults, a duress vault, shared vaults and sync with iPad.
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FounderPlaybooks.
What other founders did to grow.
2722 dispatches from hundreds of founders, pulled from the week's best podcasts.
People really didn't want to engage not in the context of the class they weren't looking to take the class and then go into a community and talk about it… we're going to try again with a more contextual approach.
"If You Build It They Will Come" Community Failed — Contextual Engagement Is the Answer
Zumba built discussion threads around classes — users could chat about their health journey or the workout they just took. Almost nobody participated. The insight: digital community needs to be embedded in the moment of experience, not offered as a separate destination after the fact. Their next attempt targets contextual interaction during the class, not a standalone forum.
If possible find a way to build an extrinsic trigger into your target users workflow that reminds them when they should be using it. Eventually as the user goes through enough loops and builds a habit it becomes an intrinsic trigger and they don't need the reminder anymore.
Use extrinsic triggers to build habits before intrinsic ones take hold
Nir Eyal's Hooked framework starts every habit loop with an extrinsic trigger. Carter gives two modern AI-era examples: Granola sends a calendar-linked desktop notification before meetings (helpful in its own right), and Whisper Flow places a subtle widget at the bottom of the screen that trains users to reach for voice-to-text. The goal is to run enough loops that the trigger internalizes. Not every product can build an extrinsic trigger into the workflow — but if possible, the habit formation speed advantage is significant.
There's a play for whatever you're stuck on.
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