Microsoft Outlook Calendar vs Proton Calendar

Microsoft Outlook Calendar provides calendar and email access through web, desktop, and mobile apps, including iOS and Android. Outlook Free includes email and calendar, 15 GB of mailbox storage, 5 GB of cloud storage, and core security features such as spam filters. Shared calendars and video meeting support are listed. Outlook can connect Outlook.com, Gmail, Yahoo!, iCloud, and other mail services, and scans links and attachments for threats. Focused inbox, sweep, snooze, and flags help organize email, while access to Word, Excel, PowerPoint, and OneDrive files is also included. Copilot can draft messages and help adjust tone, length, and clarity, but in Outlook it currently works with outlook.com, hotmail.com, live.com, and msn.com addresses. Microsoft 365 Personal costs $9.99 a month, billed monthly, and includes 1 TB of storage and use on five devices. Personal, Family, and Premium offer a one-month free trial, and paid Microsoft 365 plans include ongoing support. Subscriptions renew automatically unless canceled in the Microsoft account.

Proton Calendar is a calendar service for managing events, invitations, and recurring schedules on Android and iOS. Event titles, descriptions, locations, and invited people are protected with end-to-end or zero-knowledge encryption. A free Proton account costs nothing and allows up to 3 calendars. Paid Proton Mail plans allow up to 25 calendars, with calendar sharing by link to other calendar services on the web. Users can send invitations and add events from Proton Mail; appointment scheduling updates availability and adds confirmed meetings. The service supports scheduling links and video meetings, and notifications can arrive through desktop browsers or mobile devices. Calendar import and export are available on paid plans. Subscriptions purchased through proton.me renew automatically, and users can switch plans at any time; upgrades receive prorated credit. Proton is incorporated and headquartered in Switzerland and follows Swiss privacy laws.