Dr. Thump Pro 1.0

The experience of purchasing a watermelon only to find it disappointing is all too common. Dr. Thump Pro aims to address this issue, employing extensive research to enhance the process of selecting a quality watermelon. This innovative app utilizes the sound generated from thumping a watermelon, along with its size, to evaluate and predict the sweetness or bitterness of the fruit before it is purchased.

Upon using the app, users will receive a measurement based on the Brix scale, which assesses the sugar content in fruit juices. A lower Brix value indicates a more bitter watermelon, while a higher value corresponds with greater sweetness. Typically, watermelons rate around 7 on this scale; thus, values of 8 and above are preferred, whereas anything below 7 is recommended for rejection due to potential bitterness.

Dr. Thump Pro offers flexibility in testing; watermelons can be assessed either while situated in a bin or removed for individual evaluation. Thumping can be performed using knuckles or a fist; however, for those who engage in frequent testing, utilizing a harder object—such as a cue ball or a sturdy plastic disk (like those used in caster wheels)—is advisable. It is essential that the object employed does not produce additional noise upon contact with the watermelon.

A tutorial video demonstrating how to effectively use this app is available at this link. Users can also access this instructional video through the tutorial option located within the app's settings menu.