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Mastro Standard is completely free and always will be. It was built with one goal in mind: unlock the full power of astrology to everyone, without making any compromises. It is quite simply the best free astrology software in terms of features, ease of use, and performance.

In exchange, we simply ask you to subscribe to our newsletter. We will never spam you. The only emails you will receive from us are occasional updates about Mastro, and you can unsubscribe at any time.

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Click on the button below to download Mastro Standard.