Tell me what feels untrustworthy, even if nothing is technically broken. Product Hunt launch is booked for the 12th. Note the device and OS on every issue. Use the sandbox card numbers in the brief.
It shows what a real brief looks like. When a founder funds a job like this, you pitch here: a couple of lines on what you'd test, your price and your hours. The pay on a $30 job would be $27.