Showing 1–20 of 1,000 ranked alternatives.
Telegram FZ-LLC
Chat securely and sync across devices
Send messages instantly with end-to-end encryption. Share files, images, and videos. Create and join groups and channels. Access conversations across devices without requiring a constant phone connection.
Signal Messenger, LLC
Send messages and files securely
Send texts, voice messages, photos, videos, GIFs, and files for free. Make encrypted voice and video calls with group support up to 50 people. Create group chats with up to 1,000 members. Share files and media securely.
Hong Kong CipherChat Tech Company Limited
Share messages and files securely
Secure messaging with end-to-end encryption for private conversations. Share files and collaborate securely. Choose between private server deployment or on-premise hosting for enhanced control.
WhatsApp Inc.
Send messages and make calls
Send text messages, make voice and video calls. Share files, images, and location. Communicate privately with end-to-end encryption. Available on mobile, tablet, and desktop. No subscription fees.
Proton AG
Securely send and manage emails
Create a @.me or @protonmail.com address. Send and receive emails with end-to-end security. Manage inbox with filters, labels, and search. Attach files and set reminders. Protect communications with Swiss-based encryption.
OK.de Services GmbH
Send messages and manage crypto securely
Send and receive encrypted messages with end-to-end security. Create group chats and accept messages before viewing. Share files securely. Make video calls with friends or colleagues.
Crypviser GmbH
Send encrypted messages and calls
Send and receive encrypted messages with end-to-end blockchain security. Make private video and voice calls with automated encryption. Store and share files securely without third-party access.
Code Siren, LLC
Secure data exchange with PQC encryption
Secure data collaboration with end-to-end encryption using AES-256 and post-quantum cryptography. Share files and messages with encrypted channels. Create secure meeting rooms for remote teams. Manage access controls and audit logs.
Ease Applications, LLC
Share patient updates securely
Patients can invite family members to receive text, photo, and video updates on their hospital status. Updates are HIPAA compliant and disappear after 60 seconds. Content is used to inform and educate families about the patient’s condition.
Mega Networks LLC
Upload files, search, store, and share securely
Store and manage files with end-to-end encryption. Upload, search, download, stream, view, share, rename, or delete files from any device. Share folders and track updates in real time. Access data through web browsers or dedicated apps.
Zoho Corporation
Sync emails, calendars, and contacts
Manage emails, calendars, and contacts from a mobile device. Send and receive messages, schedule meetings, and sync events. Access secure with encryption and two-factor authentication. Share files and manage contacts directly.
Cypherdog Security Inc.
Secure text and files with one click
Encrypt text and files with end-to-end encryption. Share securely via email, cloud storage, or chat systems. Verify sender identity to ensure communication privacy. Protect messages and documents with one-click encryption.
Robins Financial Credit Union
Turn on and off anytime
Manage debit and credit card status remotely through the . Receive push notifications or emails for card activity. Control card functions such as activation and deactivation.
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