Common questions

Is this on iPhone?

Not yet. Time & Space is Android-first because the on-device LLM, sharing primitives, and notification-listener access we need are most mature there. iOS is on the roadmap once the core is stable on Android.

Does the AI run in the cloud?

No. Capture, transcription, extraction, and relationship inference all run on your phone using Gemini Nano (or a bundled fallback model on devices that don't have it). Your notes never leave your device unless you share them explicitly.

Can it really read my WhatsApp?

With your permission, yes — via Android's built-in NotificationListenerService, which lets apps process the notifications you already see. You enable it per contact, and the text is processed entirely on your device. This is not WhatsApp scraping; it's an OS-level API.

What if my spouse doesn't use the app?

You can share with anyone. People who install Time & Space see your shares natively. People who don't can receive a daily summary on WhatsApp or SMS. Sharing with someone who isn't on the app is one-way once sent — like any message — and we say so clearly in the UI.

What does “default deny” actually mean?

Every node in your graph — every note, fact, person, plan — starts private. Sharing requires an explicit, audience-specific decision. Even when you share something, only the fields you allow are visible. Add a new field later and it's private until you say otherwise.

What happens if I lose my phone?

Recovery uses a 24-word seed you keep offline. Without it, your account is unrecoverable — that's the price of holding the keys yourself. You can optionally designate a legacy contact who can request access after a verifiable delay.

How is sharing encrypted?

Time & Space uses MLS (Messaging Layer Security, RFC 9420) — the cryptographic protocol designed for private group messaging at scale. Each audience is its own MLS group with rotating keys. Our relay holds encrypted blobs and cannot read them.

Is it open-source?

Decision pending. We're committed to transparency about what runs on your device and we'll publish the threat model and protocol details regardless of license.

How much will it cost?

Pricing isn't set. Likely a small subscription that covers running the relay and outbound messaging. The on-device features will work without an account.

How is this different from a normal notes app?

Notes apps store text. Time & Space builds a typed graph: people, places, events, promises, decisions. It extracts commitments from what you capture, tracks them against your calendar, and nudges you at the right moment. The notes are an ingredient, not the product.

How do you handle relationships?

The app proposes relationships from signals it sees on your device — calendar patterns, contact groups, message phrasing — and asks you to confirm with full evidence visible. Nothing acts on a guess. You can edit, retract, or override at any time.