Great app, but low quality gifs

Does exactly what it claims to do and is user friendly. Whats missing though is an option to pick a final file weight (in Kb or Mb) to strive for. Right now, we can pick the gif width and the frame rate, but the higher end options lower visual quality. The banding is horrendous. Id rather have heavier files, but full quality gifs. The ideal solution would be to be able to select a "high quality" setting and a maximum gif weight, letting the app convert the images according to that. So, for example, if I selected "high quality" and inputted a 2Mb maximum weight, Id get the best visual quality possible for a file that size.
It would also be great for the cropping options to let us pick proportions (similarly to what can be done in the camera roll) and apply them to the whole gif at once since the cropping window is *tiny* and its really hard to eyeball appropriate proportions. Finally, the app systematically crashes after 36 frames, meaning even though I paid for the full version, its not possible to make a gif of up to 10 seconds.

Gifier about 5SecondsApp - Animated GIFs, v1.6.6