A to-do list app that works offline. No account required.

How to use Nydhei entirely on your device: no sign-up, no internet needed, with optional end-to-end encrypted sync when you want it.

Most task apps demand an email address before you can write down “buy milk.” Then they quietly require a connection for everything, and your list is suddenly a login screen when you’re on a plane, underground, or just out of coverage.

If you’re searching for a to-do list app without an account or an offline todo app, the fix is an app that’s local-first: your data lives on your device, and the network is optional.

How Nydhei works offline

  • No sign-up wall. On first launch, choose Continue without signing in and start immediately. Nothing about you is collected. There’s no “you” on any server. See Welcome to Nydhei.
  • Everything works on-device. Your board, planner, notes, and lists are stored locally. Airplane mode changes nothing.
  • Nothing expires. An offline list isn’t a trial. Use Nydhei on one device, account-free, for as long as you like.

When you do want sync

The usual trade-off with offline apps is that adding a second device means either manual exports or giving up privacy. Nydhei’s answer: sign in only when you want sync, and your data is end-to-end encrypted before it leaves the device. The server stores ciphertext it cannot read.

  1. Sign in from the app when you’re ready.
  2. Link your other device.
  3. Keep your recovery phrase somewhere safe. It’s your key, not Nydhei’s.

Read how syncing behaves in Sync and what’s protected in End-to-end encryption.

Getting started offline, step by step

  1. Install Nydhei on Android or iOS.
  2. Tap Continue without signing in.
  3. Create your first task. Try typing naturally: quick syntax fills in dates and categories.
  4. Open the Planner and drag the task onto today’s dial.

That’s a complete, private planning system, and you never entered an email address.

Get Nydhei for your phone.

Download on App Store Get it on Google Play