Yes, Compression Calculator is completely free and it doesn't have any in-app purchases or subscriptions.
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Compression Calculator is free.
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I love the concept, and all the data you can put to use. Only one problem, as soon as the keyboard pops up to enter measurements, I can’t get the keyboard to go away. This leaves me unable to press the calculate button, or enter anything in the last two box’s for the data. Once the keyboard issue is fixed, I think this app will be an awesome and very useful tool.
