Lockday encrypts every task on your device before it syncs. We can see when you sync; we can never see what you wrote. Offline-first. No ads. No tracking.
Most apps bolt privacy on afterward. Lockday is built so the server is mathematically unable to read your content. Here is exactly what it can and cannot see.
Read the full security model →Task titles, notes, due dates, project names, and labels are encrypted on your device with AES-256 before they ever reach a server. Per-item keys are wrapped with post-quantum cryptography, so your data stays sealed even against a future quantum computer.
Create, edit, and complete tasks with no connection. Everything syncs automatically when you are back online.
See today's tasks at a glance and check them off without opening the app. On both Android and iOS.
Daily, weekly, every Nth weekday, monthly on a date. Skip or reschedule a single occurrence without breaking the series.
Exact-time notifications that fire when you set them, even when the device is idle.
Organize the way you think, then share a project with specific people when you want to plan together.
Every privacy and security feature is free, forever. Pro lifts the limits and adds power tools.
Pay monthly, yearly, or once.
Everything in Free, plus:
Pay via the App Store or Google Play, or with crypto (BTC, ETH, USDC, LTC, USDT) on the direct builds. Annual and lifetime support crypto.
Go ProA private place for plans, ideas, errands, and reminders. Free to start.