Here are the choices:

1) Download 1.0 Preview Edition right here for free (v0.6)
2) Purchase a single-user license from my store (frequency.easystorecreator.com) for only $2.79
3) Purchase unlimited licenses for only $12.99.
4) Wait until May 15th, when version 1.0 final release is available, and it will cost $10.49 for a single license and $36.99 for unlimited licenses. After May 15th, the preview edition will be made unavailable.