4 stars: It is a good app, but as I use it mostly for a bicycle head light, the layout needs improving. The flash rate slider is almost impossible to see - it needs a reasonable amount of contrast. It needs to be still able to flash, but with the screen turned off. And it would also be good to be able to make it run in the back ground, and use other apps while it is running.
5 stars: In addition to it's entertainment uses, I found a practical use. Put to it's lowest setting of 1hz it makes an excellent caution flasher for cars to see you if you are walking along a unlit road side.
5 stars: It sputters a bit but makes for some cool old film style black and white looks.
5 stars: Killed my epileptic mom. :D
5 stars: It can flash the screen or LED up to 30hz.
5 stars: Luv it on romantic nites.. Real handy.. Lol!! Yes indeed
4 stars: Chicks dig it
5 stars: Hell ya
5 stars: I just love it!
5 stars: Great strong strobe ☆
5 stars: Love it
5 stars: Awsome
5 stars: Fun
5 stars: Nice
5 stars: Cool
4 stars: Fun times with the fidget spinner, but I wish the LED on-duration was shorter. As it is it makes the spinner blurry.
5 stars: This makes a great safety feature when I'm riding my bicycle before sunrise. However it could need some improving.
5 stars: It's pretty good fastest strobe light I've ever seen
5 stars: Best strobe light out there. Really fast too.
4 stars: Works well but wish it was slightly more ...