Notes • Checklists • Reminders • Sync

Your ideas and tasks,
in one place always with you

Notban is a fast, lightweight notebook: write notes, build checklists, organize with labels and colors, attach photos and files and set reminders. It works offline, and once you sign in with your mobile number it syncs between your phone and the web.

Older or budget (32-bit) phone? Download the armeabi-v7a build · Requires Android 7 or later

Free, no ads Sign-in optional Works offline Synced on every device Persian, Arabic & English
One account, every device AndroidWeb appHome-screen widgetWord exportSMS sign-in
One account, every device, everyone you work with

Your notes everywhere, and with others too

Phone, tablet or computer; alone or with family and colleagues. And if you prefer, with no sign-up at all.

Sync across devices

Write on your phone, continue on your computer. Every change reaches all devices signed in with the same number automatically.

  • Works offline and syncs automatically once you’re back online
  • Editing on two devices at once never loses your writing
  • Version history with restore
  • Manage active devices and sign out remotely

Share notes with others

Share the family shopping list, a trip plan or team tasks using just a mobile number, and choose each person’s access level.

👁View only ✎Edit & collaborate
  • View-only members can read but not change the note
  • With edit access everyone writes and ticks checklist items together, and changes reach everyone
  • Change or revoke anyone’s access at any time, even for people who haven’t installed Notban yet

Web app on every device

No install needed. Open it in any browser on Windows, macOS, Linux, iPhone, iPad or Android, with the same account and the same notes.

WindowsmacOSLinuxiPhone / iPadAndroid
  • Can be added to your home screen like an installed app
  • A real keyboard and big screen for long notes

Signing in is optional

Notban works fully without an account or internet, and your notes stay on your phone. Sign in whenever you like; your existing notes are kept and synced.

  • No password: sign in with your mobile number and an SMS code
  • Only needed for sync, sharing and the web app
  • Locks, reminders, labels and backups work without signing in
Why Notban?

Everything you need to stay organized

Simple to start, complete for everyday use.

Notes & checklists

Free text with formatting and highlights, or to-do lists you can tick and reorder; switch between them with one tap.

Colored labels & 12 card colors

Group notes with colored labels and filter them from the label bar with one tap.

Images, files & photo editor

Snap photos, paste from the gallery or clipboard, crop and rotate, and attach any file.

Reminders with your sound

Set a reminder time on any note and pick a notification sound from several built-in tones.

Fast search

Search titles, text and checklist items; Persian and Arabic letter variants and diacritics don’t matter.

Home-screen widget

One note, pinned notes or all notes on your Android home screen without opening the app.

App lock & note lock

Protect the whole app or individual notes with a PIN or fingerprint.

Encrypted backups

Automatic daily or manual backups with attachments and your own password; restore on any phone.

Start in under a minute

Install and write. That’s it.

No sign-up form, no password. Sign in with your mobile number whenever you want your notes to sync.

Sign in on the website →
  1. 01

    Install or open the web app

    Install from Bazaar, Myket or a direct download, or open it in your browser.

  2. 02

    Write and organize

    Create notes or checklists, add colors and labels, pin or archive them.

  3. 03

    Sync with your mobile number

    Sign in with an SMS code and your notes are available on every device and on this website.

  4. 04

    Share

    Share the shopping list or a work plan with family and colleagues.

Before you start

A few questions, clear answers

Can I use Notban without signing up?

Yes. Notes, checklists, labels, reminders, locks and backups all work on your phone without signing in, even offline. Signing in with your mobile number is only needed to sync across devices, share and keep version history.

What happens when I’m offline?

Notban is offline-first: every change is saved on the device right away and syncs automatically once you’re back online. If two people edit the same note’s text at once, nothing is lost; a conflict copy is created.

How do I share a note?

Open the note menu, tap Share and enter the person’s mobile number with view-only or edit access. Even if they don’t have Notban yet, they’ll see the note after their first sign-in. You can share several notes at once too.

Do attached images and files sync?

Not yet. Attachments stay on the device and are included in the encrypted backup file and in Word exports. Text, checklists, labels and note settings do sync.

What if I lose my phone?

Sign in with the same number on another phone or on this website. Your synced notes come back, and from Active devices you can sign the lost phone out.

Which languages and calendars are supported?

Persian, Arabic and English, with right-to-left and left-to-right layouts; Solar Hijri, lunar Hijri and Gregorian calendars; light and dark themes and adjustable font size.

Write your first note today

Free, lightweight and ad-free.

Get Notban