Apps That
Went Free on
2021-10-02

Chord Solver is a music theory tool to help you spell chords, scales and identity intervals. Just enter a note and that note will become the root of the chord or scale. If you enter two different notes the app identifies the interval. Learning music theory is much like learning a language and Chord Solver will show you the way.

In Galaxy Defender your ultimate goal is to equip your planet with different shooter turrets to defend it. You need to rotate your planet to complete the endless waves and destroy the incoming blocks. The app includes different planet skins and turret upgrades, but you will need to use your coins to redeem them.

With Margin is a profit and loss estimator, helping you quickly determine how much you might make on any item. Simply fill in all of the fields including item cost, selling fees, payment fees, shipping cost, and potential sell price. With Margin will calculate the potential profit and even provide a 10% low and high range as a buffer. Double-tap any field to quickly clear all of the values.

This app acts as a handheld barometer. Barometers measure the pressure in the atmosphere and are used to predict weather. AtmoBarometer displays info in hPA, mm, or inch. The app lets you collect pressure during the day to create logs and charts.