your whole topic is hard to understand, you should really try to improve your English or visit the local board and post in your own language instead.
is there an app of some sort I can use on my Cell Phone to let me know the current Blockchain Wallet Sending Fees
i don't know what you have in mind when you say "blockchain wallet" but if it is not about the blockchain.com wallet then the answer is that any wallet that is designed by a competent developer has a good fee estimation based on the memory pool. for example Electrum contacts Electrum nodes which run modified bitcoin-core and they will give it the appropriate fee and the user can set it to the recommended value depending on his needs.
It's also about the number of miners in the system. As the number of miners increases, the ratio of the demand is increased and the fee falls.
that is completely wrong. it has nothing to do with number of miners because with difficulty adjustments number of miners wouldn't matter anymore.