Learn Spanish (Spain): La aplicación indica que la ubicación está aquí mismo. - The app indicates that the location is right here.

In this sentence, mismo is used for emphasis. When placed immediately after a spatial adverb like aquí (here), it translates to "right" or "exactly". So, aquí mismo means "right here" or "exactly here".

I always mix up ser and estar. Why is it está aquí mismo instead of es aquí mismo?

For physical locations of people, places, or things, Spanish always uses estar. Even though a building's location might seem permanent, the rule is to use estar for physical placement (like la ubicación). The main exception you'll see is for events (like a party or a meeting), which use ser to say where they take place.

Since indica que is a trigger phrase, why doesn't it use the subjunctive (esté)?

When indicar (to indicate) is used to report a fact or piece of information, as the app is doing here, it takes the normal indicative mood (está). It only triggers the subjunctive if it's used as a command or to influence someone's behavior (for example, if the app indicated that you should turn right).

Aplicación and ubicación both end in -ción. Are words with this ending always feminine?