便利なアプリの英語

easy to use

easy to use

a suite of application programs

User-friendly

the state or quality of being convenient to use

a means of serving

a thing that is useful

a useful way of using something

to use something because of its convenience

Make it easy to use

of a thing or person, being very useful to do something

to answer the purpose―serve one's turn―（形容詞をもって言い表せば）―to be useful―serviceable―helpful―available―good for something.

to give a person something to use at his/her disposal

practical application

be in common use

something that is used a lot

the degree to which something is convenient to use

to put something to some use

be used by

to be useful―of use―serviceable―of service―good for something

I find him useful

He has proved of service to me.

in practical applications