kiutra develops cryogen-free cooling solutions based on closed-cycle cryocoolers and magnetic refrigeration. kiutra is the first and only supplier for cryostats providing multi-stage continuous Adiabatic Demagnetization Refrigeration (cADR) – an elegant and user-friendly technique for the permanent generation of sub-Kelvin temperatures. kiutra Cryostats may be equipped with multiple ADR units and optional accessories such as a fast-cooldown add-on to match customer-specific cooling requirements and budgets. Our custom-made stray-field compensated magnets guarantee a residual field of less than 500 μT at the sample position which can be further reduced by two orders of magnitude with our magnetic shielding add-on. All our cryostats are easy to operate, hazard-free, and can be controlled by using a modern, user-friendly graphical software based on an open-source Python framework that can easily be adapted to specific measurement setups. Our systems are extremely compact and have minimal infrastructure requirements, nevertheless offering continuous temperature sweeps from sub-Kelvin to room temperature.