QMail почта

Thunderbird is a free, open-source, privacy-focused email client with IMAP/POP3 support and multiple account management, but has notable issues with notifications, folder synchronization, and compatibility with some providers, particularly Yandex OAuth2.

Zoho Mail is a mobile app for managing email, calendar, and contacts with support for multiple accounts, offline mode, and basic data protection (E2E encryption optional). It functions but experiences issues with spam filtering, notifications, and synchronization in some regions.

WhatsApp from Meta. WhatsApp is a free messaging and video calling app.

Universal free email client for managing multiple email accounts with push notifications, dark theme, and flexible interface customization. Stable in most cases, but some users experience synchronization, content loading, and performance issues after updates.

Experience the perfect combination of speed, security, and simplicity with Octohide VPN.

imo is a free, simple and secure app that enables international video calls and instant messaging.

An app for paying for purchases in online and offline stores with installment plans of 6-10 months, featuring automatic payments, reminders, and payment schedule management.

The app displays threat status (drones, missiles, or all clear) for Russian regions and sends push notifications when the situation changes, operating offline based on the latest known information.