Is there a free basic version that can install APKs?

✅ YES. The free Personal Use version can sideload APKs with drag and drop, file upload, or adb install in Genymotion Desktop. Genymotion Desktop Deploy Applications

If you need Google Play Services, you can also install Open GApps first, then install apps afterward. Note that the free edition has limited features, and Android 16 requires a paid license. Genymotion Desktop Deploy Applications

Are you trying to install a specific APK or just checking whether it works for your app tests?