If you are investing for Bitcoin for long term, you don't have to check the price daily or weekly just save your seed phrase in a good secure place and delete the app from your phone. And you can check the price just once a month.
Or set alarm to receive the price of bitcoin whenever there is fall and rising. And when the price down then buy more to fill the wallet.
This depends on the method of investment you are using. If you are using lump sum investment where you buy at once and will not consider to buy again in a short while, then the idea of buying and deleting the app might be good. But if you are using method like the DCA that requires you to purchase regularly, then it is not ideal to delete the app because you might need to check that everything is in order after you withdraw from the CEX or wherever you are buying from. All these might also be adjusted if you are storing your coins in a hardware wallet as that is entirely a different approach.