Your day shouldn't look like an ideal to-do list. It should look like the person you are today.
Exocortex adapts your day to your real energy. From your sleep and your steps — read through Health Connect, read-only — it estimates your cognitive load for the day.
When it rises, it proposes postponing the tasks that demand the most concentration, and it filters interruptions according to your state.
WHAT YOU GET
• A readable cognitive load: a deterministic rule, a confidence level, never an opaque score. You can see how the number forms, and why it moves.
• A schedule that steps back instead of breaking: heavy tasks get postponed, and a task postponed too often resurfaces so a decision gets made. Nothing disappears quietly.
• An encrypted journal: you write freely, the text stays on the device, and the journal is hidden in screenshots.
• On-device analysis of your tone: a language model runs on the phone, without sending your text. Your journal never leaves the device, not even to be analysed.
• A notification shield: calls and alarms always get through, the rest waits. The mode shown is the mode actually applied.
• Frictionless tasks: add, complete, pause, reopen, edit. An energy suggestion from the local model, which you can always override.
WHY COGNITIVE LOAD, NOT A SCORE
Most energy apps hand you a percentage with no explanation, and you have to decide whether to trust it. Exocortex does the opposite: a deterministic rule, applied to what Health Connect is willing to show, with an explicit confidence level.
When confidence is low — because there's little data, because sleep was unusual — Exocortex says so instead of pretending to know. You keep control over what you choose to follow.
YOUR DATA STAYS WITH YOU
• No account, no server, no advertising, no telemetry.
• SQLCipher encrypted database, key sealed by the Android Keystore.
• Health Connect read-only: Exocortex does not create, modify or delete any health data.
• English and French, selectable in settings.
The model runs on your phone. No request is made to any server, on any screen. That's verifiable in the declared permissions: the app requests no network access.
FREE AND PRO
The app is free for tasks, the recent journal and the manual shield. A one-time "Exocortex Pro" purchase unlocks the local AI, unlimited history and the automatic shield. No subscription, no renewal.
REQUIREMENTS
• Android 9 or later, 64-bit.
• Health Connect for automatic adjustment. Without access, the app still works and says so.
• The local model (~1.1 GB) is downloaded on first launch. Without it, analyses use a heuristic estimate.
Exocortex is not a medical device and makes no diagnosis. Tone analyses are indicative.
Exocortex — your day, adjusted to your energy.
Your day, adjusted to your real energy. Local, encrypted, no account.