Does not work.
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Yes, Cover Letter is free to download, however it contains in-app purchases or subscription offerings.
Not enough reviews to make a reliable assessment. The app needs more user feedback.
Cover Letter has several in-app purchases/subscriptions, the average in-app price is 59.99 zł.
To get estimated revenue of Cover Letter app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
Did not work at all.