The instant messenger app for private and business use

SIMSme Private Logo

SIMSme Private

Secure and private instant messaging with your friends and family

  • A secure messaging alternative to WhatsApp
  • Modern design and new features
  • Free on iOS and Android
SIMSme Business App Icon

SIMSme Business

The secure instant messenger for better and more efficient internal communications within companies and teams

  • The GDPR-compliant corporate messaging app
  • Easy to roll out, simple to administer
  • Helpful functions your employees will appreciate

SIMSme has a new home at Brabbler AG

Post has trustingly handed over their messenger SIMSme (Business and Private) to us and supports Brabbler AG as a shareholder with its expertise. We’re excited about combining the best of both product worlds and using synergies to further develop digital communication solutions without side effects „made in Germany“.
Read the official press release (in German) „Brabbler takes over SIMSme"

The secure messenger app

Send text and voice messages.

Confidential information can be sent as self-deleting messages.

Share videos, images and locations.

Send files in any format desired.

Reminder messages can be scheduled ahead of time.

Groups can be created with up to 100 members.

Better co-operation using secure messaging.

Intuitive user management and adjustment to fit your company's corporate design. Tailor the messenger app to your preferred look.

Available on all devices. Chats are always up-to-date, regardless of whether on a computer, telephone or tablet. SIMSme Business Web Messenger for desktop computers.

Clear division between employees' business and private communication

Compare our products

SIMSme Private Logo


SIMSme Private Logo


Secure end-to-end encryption

Strong privacy protections meeting the EU GDPR.

Innovative messenger functions

Web messenger for computer/tablet

Multi-device compatible (up to ten devices)

Intuitive administrator portal

Enterprise-ready (EMM, LDAP, ISO 27001 etc.)