When referring to a residence, the letters APT stand for "Apartment."
An apartment is one room, or set of rooms, which is living space leased out to people.
A suite, on the other hand, is similar, but it is always a group of rooms.
A "loft apartment," for instance, could be one grand space, with perhaps a kitchen in one corner, and a Murphy bed hidden against a wall during the day, and pulled out at night. A suite would have separate rooms in which to cook and sleep.
Sometimes it seems there are so many details to consider when choosing an apartment that it’s hard to hone in on a final decision. There are many angles that might make one new apartment seem more appealing to you than another.
See some guidelines on how to channel your second-guessing toward choosing a great apartment at ApartmentGuide.com.