EPRIVO Encrypted Email & Chat

What is EPRIVO?

EPRIVO is a free Android application from BlueRiSC Inc. that combines two privacy‑focused tools in one place: an encrypted email client and a layer that adds end‑to‑end encryption to Telegram conversations. The app is designed for users who want to protect the content of their messages without having to switch between multiple services.

Main features

• Encrypted email – Connect an existing IMAP‑compatible email account and send messages that are encrypted on your device before they leave your phone.
• Virtual private address – Create a dedicated address that works within the app, giving you a separate identity for sensitive communications.
• Voice and text emails – Record short voice notes or type text that are encrypted in the same way as regular emails.
• Telegram encryption – Turn on a “Private” switch for any regular or group Telegram chat to apply end‑to‑end encryption without leaving the Telegram interface.
• Cross‑device sync – Encrypted messages are synchronized securely across devices where you have installed EPRIVO.
• Control over message lifespan – You can recall a sent message, causing it to disappear from the recipient’s view.

How it works

When you add an email account, EPRIVO uses the standard IMAP protocol to access your mailbox. Before any outgoing message leaves the app, it is encrypted locally with a key that only you control. The encrypted payload is then sent through the normal email server, meaning the provider sees only ciphertext.

For Telegram, EPRIVO leverages the TDLib API, which is the official library for building Telegram clients. By enabling the private mode, the app creates a separate encrypted channel that runs alongside the regular Telegram chat. The original Telegram messages remain unchanged, while the encrypted version is stored and displayed only within EPRIVO.

Practical uses

• Sending confidential business information without exposing it to email providers.
• Sharing personal details, such as health or financial data, with trusted contacts.
• Maintaining a separate identity for online registrations or newsletters.
• Adding an extra layer of security to group discussions that involve sensitive topics.

Installation information

Download EPRIVO from the Google Play Store using the package name com.bluerisc.eprivo. The app is free to install and use. After installation, you will be guided through the setup of an email account and the optional activation of Telegram encryption.

Things to know before installing

1. Because the app relies on IMAP, the email service you choose must support IMAP access.
2. The encryption keys are stored locally; losing access to your device without a backup may make encrypted messages unrecoverable.
3. EPRIVO does not host your messages; it acts as a conduit that encrypts and forwards data.

Who may find it useful?

Anyone who values privacy in everyday communication can benefit from EPRIVO. This includes professionals handling confidential client data, journalists protecting sources, and individuals who simply prefer not to have their personal conversations stored in plain text on third‑party servers.

Frequently asked questions

Is EPRIVO compatible with all Android versions?

The app requires a version of Android that supports the TDLib library and standard IMAP connections. Specific minimum version details are listed on the Play Store page.

Do I need a separate subscription for the encryption features?

EPRIVO is offered as a free application. Any additional subscription options, if present, are optional and described within the app.

Can I use EPRIVO with any email provider?

Any provider that offers IMAP access can be configured, though some corporate or Exchange accounts may require additional settings.