You can search and check with Google, Coinmarketcap, Coingecko, to have website link to Binance, and its application link too.
https://www.google.com/search?q=google+binance+exchangehttps://coinmarketcap.com/rankings/exchanges/https://www.coingecko.com/en/exchangesOn coinmarketcap.com and coingecko.com, you can choose Exchanges tab then Spot for Coinmarketcap.com or Exchangess tab then Crypto Exchanges for Coingecko.com, and you will see Binance there.
Or you can enter Binance to their search box and find Binance.
Note: Always verify and check the official links and channels before downloading.
After finding and checking to confirm their exchange website link, get download link officially from their websites.