Hello,
do you just need a general frame design or you need a full app pages design ?? because if so, its going to take lots of work..
and you have to put more details about your app, ( like do you have: app icon or logo, timer or a stopwatch, loop, view mode etc.. )

Thanks

Full app design, at least three pages. I have updated the brief

Hello there,

how much pages design you want into the given budget

Thanks

Three screens at least, I have increased the budget a bit and I can increate it more to get more designs