REI3 – the open application platform

Use ready-made business applications, extend them or build your own.

Fulfill your software requirements with REI3 on-premise or in the cloud.

One Environment

One Solution

One Interface

3 good reasons to choose REI3

One platform

REI3 is an open platform for pre- or self-built web applications. Ready-made applications are available for common business needs – special requirements can be served by selective extension.


Download and use ready-made applications directly


Extend applications
or create new ones


Modern, consistent user interface
on every client


Frequent updates for
applications & platform

One dataset

Applications in REI3 are modular and build on existing data. For example, after maintaining data of an organization, other applications can use it as well.

Maintain data once and reuse it everywhere

Extend data structures update-safe

Use existing views and functions

Benefit from updates for pre-built applications

One constantly growing system

Data types, display options and functions of REI3 are extended continuously; new and existing applications benefit from this. As the functionality of the platform expands, new requirements can be easily addressed. Many functions are already included, such as…

LDAP authentication

Mobile optimizing

E-Mail notifications


Various list &
calendar views

Support of complex
data structures

Corporate identity

Official application

Automatic backups

of CSV files

Extensive change history

Fast frontend due to
modern web standards

Try REI3 here with our demo instance or download it directly.
Do you still have questions? Take a look at our FAQ or contact us.