5 stars: It works. There's a bit of white noise from the audio jack being turned up, but that can't be fixed. This app made my day. Without it, I would be mowing the lawn while listening to music I can barely hear over the mower. Thank you
5 stars: THIS APP WORKS REALLY, REALLY WELL! I LOVE IT! I've had it for years. It doesn't always play an ad, but when it does, it's only when you first turn the app on and not even every time. Also, it usually stays on for days. Btw... No, it's not just you! ;) Devices are purposely being made with ridiculously low max-volumes, so we have to get apps like this. But I picked Volume Up because it has extremely few permissions. :)
4 stars: One of the few volume booster apps out there that works with little to no ads and it's also lightweight. A little buggy though; volume boosting doesn't apply or even stops depending on the media played unless you access the app from time to time. Would've been less of a hassle if the app's permanent notification bar work.
3 stars: Works well, but when changing booster level up or down, you hear some noise like from bad radio signal. When you leave booster level in same position there is no noise. Also, way too many ads. And I dont know if the problem is from app or my earbuds, but for some songs boosting volume decreases audio quality.
3 stars: It did great in the beginning, the best volume booster that ive ever downloaded. Then it stopped working and i cant get it going again. If itd go back...