
Customized branding possible
Present your brand internally and externally. By adapting your own messenger to your corporate design, including logo and company name, you can sustainably shape the communication of your employees and external partners - and at the same time benefit from all the advantages of our high-security messenger.
Your benefits at a glance
Public Cloud, Private Cloud or On-Premises
The choice is yours: whether to host in the public cloud, private cloud or on-premises depends on factors such as budget, control requirements and the need for flexible scalability - and is based on your individual business requirements.
Benefit from the many advantages
For the highest safety requirements
stashcat offers reliable and secure digital communication for sensitive information. Send, receive and edit data highly securely from any device. Trust in Made in Germany and use a secure platform for exchanging and processing your company information.
Safety at all levels

When messages are sent, encryption is carried out on the user's end device, in which the data is encrypted using a combination of AES (256-bit) and RSA (4096-bit) algorithms. All relevant data is thus transmitted in encrypted form on the way to and from the server and is also stored in encrypted form on the servers.
Further details:
- End-to-end encryption
- TLS transport encryption: 4096-bit RSA key
- Signing algorithm: SHA256withRSA
- Perfect Forward Secrecy to protect the data from subsequent decryption of the communication
- Daily, automatic patching of SSL endpoints
- Downgrade attack prevention
- Secure renegotiation

Secure hosting
The stashcat data center is located in Germany (Munich) and takes the necessary technical and organizational measures for data security.
Transparent data protection guidelines
Data protection guidelines and terms of use can be viewed at any time. If you have any questions, please contact the appropriate person.
No access to the phone book
stashcat works independently of telephone and mobile phone numbers. The messenger does not access your device's personal phone book.
Data deletion
stashcat enables the complete deletion of users and all associated personal data as soon as consent is withdrawn, for example.
Encrypted data transmission
As described above, the provision of stashcat is completely encrypted.
Data economy
As little personal data as possible is collected and processed. Technical measures to protect personal data are part of the development of stashcat.
Reliable IT security solutions
Public authorities and organisations tasked with ensuring safety & security put extremely high standards on their IT and communication infrastructures. The capturing of data must be of high quality, while processing and transmission must be handled confidentially and securely. And it is also essential for data and information to be made available quickly and flexibly. Regardless of when and where – security organisations must be able to depend on their IT and communication systems around the clock. To this end, secunet delivers customized, holistic and intelligent IT security solutions – both nationally and internationally.

More information on our pricing models
Different packages for different requirements.
Find the right package for your team and your company.
Would you like advice on this topic?
What does stashcat cost?
The prices are individually adapted to the number of users and desired services and can be obtained on request. You can test stashcat for 30 days free of charge and without obligation with an unlimited number of users.
In the Enterprise package, you have the option of customizing the app with your own branding (your own company app), determining the hosting and integrating individual extensions.
What is stashcat?
stashcat is the business messenger with file storage and other collaboration tools such as voice and video telephony, video conferencing, a calendar, a survey module and much more.
We have been developing stashcat in close cooperation with companies and public authorities since the beginning in order to offer exactly the functions that are needed. Our focus is on maximum security and optimum usability.
This is one of the reasons why stashcat is the GDPR-compliant messenger "Made in Germany", trusted by over 10,000+ companies, authorities and institutions - and over 1.3+ million users. Among others, well-known organizations with the highest requirements use our solution:
@City of Cologne
stashcat enables fast, secure and simple communication for the crisis management team, for example
@Police of Lower Saxony
With a "bring your own device" strategy, stashcat ensures law and order together with the police officers of the Lower Saxony police force
@CDU State Association of Lower Saxony
Modern member communication is the claim of the CDU Lower Saxony - for this they rely on stashcat
@Gedikom
stashcat helps here with the uniform and simple networking of over 80 on-call practices
We would be happy to advise you on how stashcat can help your company to communicate better and more securely, save costs and improve the working atmosphere.
How do I get help and support?
The Support Center is a good place to get answers to possible questions about the stashcat corporate messenger and its functions. If you do not find the answers you are looking for here, you have various options for contacting us. Do you have questions or problems with the administration or use of stashcat? Then contact us via our support form. If you have any questions about the product itself, you can contact our sales team.
You can also find further contact details in our legal notice.
What is a business messenger?
That's right, stashcat is also an instant messenger. However, business messaging and teamwork require higher standards than the typical messengers used by consumers (private users). Among other things, a business messenger therefore meets all the requirements for GDPR-compliant use. Based on the ease of use - which has been established by private messengers - stashcat also always meets the highest usability requirements. This means that even people who have little experience with messengers can use stashcat.
The requirements of companies in all sectors are constantly evolving: mobile workers, home office, remote work - many of these are certainly familiar to you. That's why stashcat has focused on professional communication and collaboration in the corporate and government environment.
The aim is to create simple, fast and therefore efficient communication through helpful functions that support you and your company while remaining easy to use and administer.
How can I download the Messenger app?
You can find all information about the applications, apps and clients from stashcat on our App downloads page.
What are the system requirements for stashcat?
- Client minimum version
- iOS app (v. 5.4) iOS 15.2
- Android app (v. 5.4) Android 6.0
- Desktop client Windows (v. 5.4) Windows 10
- Desktop client Mac (v. 5.4) Mac OS X 10.11 (El Capitan)
- Web client (V. 5.4) Depending on the browser. In general, the latest version of the common browsers should be used
City of Cologne"stashcat is absolutely essential for the administration of the City of Cologne and offers us a data protection-compliant and secure solution for our work."
Find out more about the use of stashcat
Would you like some non-binding advice?
We will be happy to help you.
Do you have a support question? Please use our Support-Center for questions about the product and its use.