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Seishin

Productivity · Android 6.0+ · com.seishin.app

Your calendar, tasks and notes, with an AI assistant that lives on your phone.

Seishin is an offline-first life manager for Android. Plan your day on a timeline, keep tasks and notes in one place, scan printed schedules with the camera, and ask an AI assistant to add things for you. There is no account and no Seishin server: everything you create stays on your device.

Coming soon toGoogle Play Source
  • Tasks grouped into Overdue, Today and Upcoming
  • Agenda view listing today's tasks and events
  • Upcoming view with tasks and the next events
  • Adding a task with Today, Tomorrow and Next week chips
  • A checklist task with progress and reminder settings
  • Coloured notes grid with a pinned note
  • Full-screen event alarm with Snooze and Dismiss
  • Theme and accent colour settings

What it does

Calendar that thinks in days

Timeline, agenda and upcoming views with recurring events, all-day items and quick add like “Gym tomorrow 6pm for 1h”.

Tasks that won't let you forget

Due dates, priorities and persistent reminders you can mark done or snooze right from the notification.

Notes with attachments

Colored notes with photos and files, plus YouTube summaries from a pasted link.

Scan a schedule

Point the camera at a printed timetable or flyer. Text is read on the device and turned into events.

AI assistant, your choice of brain

Run a local model completely offline, or plug in your own NVIDIA NIM key for a cloud model. The assistant can add events, tasks and notes for you.

Widgets and sync

Five home-screen widgets, two-way sync with your phone's calendars, and optional Notion, Todoist and ICS feed connectors.

Privacy at a glance

Account required
No
Data collected by the developer
None
Ads
None
Analytics or tracking
None
Where your data lives
On your device
Sent to third parties
Only services you connect yourself
Delete everything
Settings → Factory reset, or uninstall
Read the full privacy policy

Why each permission

  • Camera & photos

    Scan schedules and attach images to notes. Only used when you start a scan or pick a photo.

  • Calendar

    Optional two-way sync with the calendars already on your phone (Google, Outlook, Samsung).

  • Notifications

    Show event alarms and task reminders.

  • Alarms & reminders (exact alarms)

    Fire reminders at the exact minute you set, not whenever the system gets around to it.

  • Run at startup

    Re-schedule your reminders after the phone restarts.

  • Display over other apps

    Show the full-screen alarm when an event starts.

  • Notification access (optional)

    If you turn it on, Seishin reads incoming notifications so it can suggest events from them. Off by default.

  • Internet

    Only for features you turn on: cloud AI, connectors, calendar feeds and YouTube summaries.

Legal & data

Privacy policy Terms of use Delete your data

Need help?

Found a bug, have a feature idea or a question about your data? Email me and include your phone model, Android version and the app version from Settings. I usually reply within a few days.

Email support

richiechristiandeguzman11@gmail.com
Developer: Richie Christian De Guzman · Antipolo, Rizal, Philippines