Music Factory ‪-‬ 4+

The app is decent, but crashes constantly, takes forever to load a song, and distorts the track heavily. Also the "Vocals" option doesn't just remove the vocals from the track, but removes all the high frequency range, so all you hear is the mid-range instruments like guitar. Being able to adjust the pitch by a half or whole step is a nice feature, though.

waste of money. will crash all the time and i have the patience of Job. no stars. developers r aware but obviously have done nothing. if u click the prompt from the free version to the paid version IT WILL NOT WORK. u must first delete the free app and install the paid version and pay for it to crash more than on the free version. great idea, would be immensely musically helpful if it worked and if these developers paid attention to paying customers who have repeatedly told them to fix these two problems on reviews. But yet they continue to develop and request more ideas for additional apps prior to fixing those out there. i would say this a nickel and dime scam (that pockets them 1000’s of dollars) that needs to be investigated by authorities.

The free version works for only 30 seconds of the song. While using the free app, I was offered the opportunity to upgrade. I pressed the button to upgrade, costing $2.99. I was never given the full version but charged $2.99. I went ahead and then I reopened the App Store and purchased the full version (versus upgrading within the free app), and “lo and behold” the app worked. I am unhappy because I was billed twice for this app and the first purchase never worked.

Moral of the story, if you are in s bind and need this type of app either purchase from someone else or purchase the full version at the start. Do not download the free app thinking you can upgrade within the app. The feature does not work.