4 stars: Great app, although it stopped working with my YouTube app recently. I turned compatibility on and then off and it works again. I read some reviews that after a year it is 3 dollars per month which I think is a weird strategy. Please keep the per life option in place and add a donate button maybe.
5 stars: I can confidently say it's the best I've used so far and I can recommend it to anyone. It does what it says and the output is super loud. Howbeit, it takes considerable to load. It would've been perfect if the time it took to load was adjusted.
5 stars: Greatest sound booster for my android phone I have found. Wont use anything else. This booster causes an extremely noticeable sound change. You try it and you definitely will be happy. Kudos to the developer.
4 stars: Very. good. Had to change to four stars because it only works on my older Voyager tablet made by RCA if the app is maximized on screen. If another app is selected, it stops working.
5 stars: i LOVE this app... Ive been using it for couple of years now and its the Best Amplifer App that I can find. And Ive tried MORE tgen a few (both free and some that I did purchase) of them...!
5 stars: This is the best speaker boosting app I have tried (and I've tried a lot).
5 stars: Gives much more needed Volume not just on your music a but on your whole a device like now could not hear my keyboard punching the keys until I just turned on my speaker a boost they really rock and much Thank yo...