The app is small with only a few functions, but these are all the better, because you can adjust everything (eg color) and the quite compact. Therefore I use this app more often than other flashlight apps.
I've actually got this app for emergencies only. If time is not a light at hand makes the flashlight already sense. But be warned: Even the battery becomes exhausted quickly. Therefore, use only briefly and in emergencies.
I use the flashlight but more common than I thought. For smaller repairs in the interior of a guitar or the dark night after grilling trip over to find out in the woods again. Super!