Kolab Now AlternativesWebMail Providers & Calendar Apps like Kolab Now
Kolab Now is described as 'Provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure' and is a webmail provider in the office & productivity category. There are more than 50 alternatives to Kolab Now for a variety of platforms, including Web-based, Android, iPhone, Windows and Linux apps. The best Kolab Now alternative is Proton Mail, which is both free and Open Source. Other great apps like Kolab Now are Tuta Mail, Zoho Mail, Posteo and Mailbox.org.
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Kolab Now alternatives are mainly WebMail Providers but may also be Email Clients or Mail Servers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of Kolab Now.- WebMail Provider
- Paid • Open Source
- 68 Mailfence alternatives
This secure email platform offers end-to-end encryption, a comprehensive suite with Calendar and Documents. Mailfence is inter-operable with OpenPGP services, features digital signatures, provides keystores, and available as a PWA for mobile independence while ensuring no ads, trackers, or surveillance.
License model
- Freemium • Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- 97 Proton Mail alternatives
Proton Mail provides secure email services with end-to-end encryption, ensuring data protection. Swiss-based and outside US jurisdiction, it offers a free version to champion privacy as a human right. Fully accessible on any device.
License model
- Freemium • Open Source
Application types
Country of Origin
Switzerland
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Tor
- 95 Tuta Mail alternatives
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.
License model
- Freemium • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Flathub
- F-Droid
- 104 Zoho Mail alternatives
Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.
License model
- Freemium • Proprietary
Application types
Country of Origin
India
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Apple Watch
- Android Tablet
- 69 Posteo alternatives
Web- and IMAP-based email service. 2GB cost 1€/month. Information is hosted on encrypted hard drives. Electricity from renewable resources is used.
- 78 Mailbox.org alternatives
E-mail inbox, online office, cloud storage, and video conferencing. Business or personal plans. From 1 € /month (1.10 USD).
License model
- Paid • Proprietary
Application types
Country of Origin
Germany
EU
Platforms
- Online
- 52 Google Workspace alternatives
Google Workspace delivers a cloud-based suite combining Gmail, Calendar, Meet & Drive to enhance collaboration through tools like Docs and Sheets. Offers secure storage options, custom domain emails, and robust management capabilities with 2FA and 24/7 support.
License model
- Paid • Proprietary
Application types
Country of Origin
United States
Platforms
- Mac
- Windows
- Linux
- Online
- Chrome OS
Google Workspace Features
- 60 Mailpile alternatives
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.
License model
- Free • Open Source
Application types
Platforms
- Linux
- Online
- Self-Hosted
- OpenPGP
DiscontinuedThe latest release (1.0.0rc6) was released in September 2019.
Mailpile Features
- 52 Nextcloud Hub alternatives
Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.
License model
- Free • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Self-Hosted
- 38 Infomaniak kMail alternatives
Infomaniak’s Mail Service is a secure emailing system hosted in Switzerland and is the best (free) alternative to the web giants. Infomaniak’s emailing service is used by more than a million companies and individuals throughout Europe.
License model
- Freemium • Open Source
Application types
Country of Origin
Switzerland
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- F-Droid
- 55 StartMail alternatives
Privacy-focused email service offering easy one-click PGP encryption, 20 GB storage, disposable email addresses, and compatibility with IMAP/SMTP while adhering to Dutch privacy laws to secure data and communications effectively.
License model
- Paid • Proprietary
Application types
Country of Origin
Netherlands
EU
Platforms
- Online
- 68 Fastmail alternatives
Fastmail offers secure email hosting with comprehensive webmail services, including IMAP, POP, and SMTP protocols. It supports file sharing, shared folders, large mailboxes, instant messaging, and is compatible with popular email programs. Excellent for businesses with compliance features.
License model
- Paid • Proprietary
Application types
Country of Origin
United Kingdom
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad
- 32 Enigmail alternatives
Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .
License model
- Free • Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- GnuPG
- Thunderbird
- SeaMonkey
Enigmail Features