Android device owners looking to score a slew of free Android apps should check out the Amazon Appstore, where some 30 applications that are worth a combined $155.71 are available right now as free of charge downloads.

As found by a Redditor, the free apps list does not include only games, as some would expect, but also various other premium apps users may find very useful, with Amazon describing them as “essential apps” in its promotion – the offer is valid on July 31 and August 1 only.

Regular prices for these apps range from $0.99 for WiFi File Explorer Pro or Fraction Calculator Plus all the way up to $29.99 for Oxford Advanced Learner’s Dictionary, 8th edition and $24.00 for Essential Anatomy 3.

The full list of premium Android apps currently available as free downloads on Amazon follows below: