Have you checked out this wallet?
PumaPays 2nd version of its native wallet app is now available on Mainnet. With a brand-new and cooler look than the previous release, the new PumaPay Cryptocurrency Wallet comes also with a set of groundbreaking features to support recurring payments with fixed amount.
https://pumapay.io/pumapay-cryptocurrency-wallet-v2/Because Bitcoin is so much valuable so if everytime its value goes down then people will react to it, same as when its value goes up. Beside Bitcoin is the most popular coin so whenever its price change many people are affected maybe because they holding more Bitcoin. Also people react in Bitcoin price because they shock the higher price of it.