Download of AstroTelescope 4.10 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this software for Mac is CloudMakers s r o. We recommend checking the downloaded files with any free antivirus. The software lies within Education Tools, more precisely Science.
From the developer:
AstroTelescope is a simple planetarium application for astrophotography. Even if it can be used separately, it is meant to work together with AstroImager.
Star maps in AstroTelescope can be displayed at any scale and rotated by any angle, with selectable star-density, and with or without star names.
You may want to check out more software for Mac, such as AstroDSLR, which might be similar to AstroTelescope.