I don't think you need to have more tools, having more applications that installed in your device means the more chance or vulnerability of getting hacked.
Having more applications installed on my device means the more chance of getting hacked. Though I'm New into the crypto space, I don't know but I've read somewhere that without someone having access to my secret code that is my passphrase he wouldn't be able to hack or get access to my wallet.
My question here is "Do you mean my wallet can be hacked even without the person getting access to my Passphrase"?
Some apps carries malwares and some other phishing stuffs I know about. Those things spies on you and will be able to steal your seed phrase ones you download them in your device. Ones the steal it, they will be able to take out your money.
And you called it passphrase, that's not the name I know. It's called a seedphase which your wallet gives to you to Keep safe, after creating it.
From what I read, passphrase is another thing entirely but relates to your seedphrase. Its like an extra key you add to make it more secure.