Private AI Journal

What "private" really means in a Private AI Journal

Journals are the most sensitive writing most of us ever create. A private AI journal protects that writing with end-to-end encryption (E2EE): your entries are encrypted on your device and stored as ciphertext. Without your key, they can't be read by us—or anyone else. Privacy here isn't a vibe; it's a property of the system.

"AI" should complement that privacy, not compromise it. Blanksheet is built to generate insights under strict privacy constraints. Your raw text is not harvested to train models; the assistance you get is designed to be helpful for you, not useful for a data warehouse.

Practically, this means you keep the benefits—pattern spotting, gentle prompts, memory of themes over time—while keeping control of your words. It also means transparency: clear language, clear controls, and the ability to export or delete your data whenever you want.

How Blanksheet keeps it private (in plain language)

• Client-side encryption: your entries are encrypted before they leave your device. Servers store encrypted blobs, not readable text.
• Zero-knowledge design: the system is structured so we don't have access to your private thoughts by default.
• No model training on your writing: insights exist to help you reflect, not to train generalized systems.
• Scoped assistance: AI helps summarize themes, track recurring topics, and suggest prompts—without needing your entire corpus to be exposed.
• Export & deletion controls: it's your journal. You can take it with you and you can remove it.

We aim to be clear about what happens when. If assistance requires working with any portion of your text, that work is scoped and privacy-aware. If a feature doesn't meet our privacy bar, it doesn't ship as "private."

What you get from AI—without giving up privacy

Private by design vs private by policy

A lot of software is "private by policy." That means the provider promises not to look. Policies are important—but they can change, and they're hard to verify from the outside. A private AI diary should be private by design. That means: encrypt first; minimize collection; give the user control; and keep assistance scoped and transparent. The default posture is: your data is yours.

• Policy-only: trust us, we won't read it.
• Design-first: even if someone tried, the data is encrypted and unreadable without your key.

This difference matters when life gets busy and you're writing about things that actually affect you—your health, your relationships, your decisions. A private AI journal should be the one space where you don't have to wonder who else is watching.

How to start (and keep) a private journaling habit

You don't need hours a day. Ten focused minutes beats zero. Here's a simple plan to get momentum in your first week:

1. Day 1 — Set intention: Why do you want a private AI journal? Clarity? Emotional processing? Better decisions? Write 4–6 sentences about the change you want.
2. Day 2 — Capture a snapshot: What's top-of-mind today? One paragraph is enough. Don't edit; just get it down.
3. Day 3 — Ask for a gentle prompt: Use a prompt like "What am I avoiding and why?" or "What energized me this week?" Respond honestly for 5–10 minutes.
4. Day 4 — Theme check: Skim your last three entries. What themes show up? Add a one-line note at the end: "Theme: X keeps showing up because…"
5. Day 5 — Decision support: Write about a real decision you're weighing. Pros, cons, feelings, stakes. Ask for a neutral summary of what you already said.
6. Day 6 — Celebrate a small win: What went better than you expected? Capture it. Train your attention toward what's working, not only what's broken.
7. Day 7 — Weekly review: Re-read the week, notice patterns, and write a tiny "next week I'll…" statement.

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