ICS Viewer - Open .ics Files

ICS Viewer opens iCalendar (.ics) files — meeting invites, flight and hotel bookings, school timetables, holiday lists and calendar exports — and shows exactly what is in them, with every time converted to your own time zone. Then add one event, or all of them, to your phone's calendar.

Everything runs on your device. Your calendar files are never uploaded.

OPEN IT ANY WAY
• Tap an .ics attachment and choose "Open with" ICS Viewer
• Share a file to the app, or pick one from your files
• Open a calendar link (webcal:// or https://), such as a public holidays feed or a shared calendar
• Paste the text of a calendar straight from an email

SEE WHAT IS IN IT
• Agenda by day, a list of all events, and to-dos when the file has any
• Times shown in your time zone, with the event's own time zone beside it when they differ
• Works with Outlook invites that use Windows time zone names, plus Google, Apple iCloud and Thunderbird files
• Repeating events: how they repeat in plain words, the next dates, skipped dates and changed instances
• People invited and their replies, the organiser, reminders, location with a map link, and notes
• A Join button for Teams, Zoom and Google Meet links
• Search events by title, place or notes

ADD TO YOUR CALENDAR
• Add one event through your calendar app — no permission needed
• Or Add all: pick a calendar and add every event at once, with reminders
• Events already added are skipped, so running it again makes no duplicates
• Attendees are never copied, so nobody gets an invitation email from your account
• No calendar account on the phone? The app can create one that stays on your device

SHARE AND EXPORT
• Share or save a copy of the file
• Export the events as CSV for a spreadsheet
• Remove details and share: strip out people, notes or reminders before you send a file on

FOR THE CURIOUS
• Check file: lists problems in a file, with line numbers
• File info and the raw text of the file and of each event

PRIVATE
• No account, no sign-in
• No storage permission: the app reads only the file you choose
• Calendar permission is asked for only when you use Add all
• Light and dark themes, 15 languages

ICS Viewer is free and supported by ads.