fruux is described as 'Free service that takes care of your contacts, calendars and more so you don't have to. Never manually copy contacts and calenders between your devices again!' and is a Calendar app in the office & productivity category. There are more than 50 alternatives to fruux for a variety of platforms, including Web-based, Android, iPhone, Windows and Android Tablet apps. The best fruux alternative is Nextcloud, which is both free and Open Source. Other great apps like fruux are Tuta Mail, Google Calendar, Proton Calendar and Fossify Calendar.
On-premises solution offering file sync, universal data access and collaboration through Nextcloud Files, Talk, and Groupware. Ensures secure, controlled data storage for enterprise with powerful privacy tools including encryption, fine-grained access, and a bug bounty.
Offers comprehensive encryption for email, calendar, and contacts with zero personal info required. Built on open source, install via Play Store, F-Droid, or APK, with Tor and VPN support. Both free and paid plans; utilizes quantum-resistant encryption ensuring privacy-focused, anonymous usage.
Manage events seamlessly with syncing across devices, automatic event creation from Gmail, shareable schedules, customizable reminders, and a user-friendly interface. Features include dark mode, integration with Google services, and support for recurring events and global time zones.
Your calendar is a record of your life. Proton Calendar helps keep it private.
Your privacy-aware, open-source calendar with intuitive design and multi-platform syncing.
Tuta Calendar offers secure event organization with end-to-end encryption and no ads or tracking. Enjoy multi-device sync, multiple calendar views, and offline access. Fully compliant with strict German data protection laws. Manage recurring events, unlimited calendars, and seamlessly integrate with Tuta Mail.
Store email, contacts, calendars, photos, music, books, apps and more in the cloud and access them on all your devices. iCloud also provides collaborative services for task management and notes and productivity apps for text documents, spreadsheets and presentations.
Calendar interface for CalDAV enabling cross-device event sync, web-based editing, recurring events, Nextcloud Contacts integration, WebCal subscriptions, attendee invites, color coding, event notifications, privacy-focused hosting, and import/export support.
Sync-in is a secure, open-source platform for file storage, synchronization, and team collaboration — designed to give organizations full control over their data and workflows, while remaining flexible enough for individual needs.
A simple calendar with optional CalDAV synchronization. You can easily create recurring events and setup reminders, it can also display week numbers.
Simple Calendar is a client-side app, compatible with fruux, but to replace fruux another service needs to be used.
It's an app, not a service.
This app is tailored for families, couples, friends, and groups, providing end-to-end encryption for secure data, seamless calendar creation, syncing, private chats, and widgets for easy access, ensuring you never miss an event.
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fruux is not a client but a server/service, this case CalDAV and CardDAV. Google Contacts and iCloud are also services hence good alternatives. Simple Calendar is a client application.