Я считаю расходы в приложении.

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Breakdown of Я считаю расходы в приложении.

• в: in
• приложение: the app
• расход: the expense

Questions & Answers about Я считаю расходы в приложении.

What form is считаю?

Считаю is the 1st person singular form of считать.

So:

• я считаю = I count / I am counting / I keep track of

Because Russian present-tense forms often cover both simple present and present continuous, this can mean either:

• I count expenses in the app
• I’m counting expenses in the app
• I track expenses in the app

Context tells you which one is meant.

Doesn’t считать also mean to think or to consider?

Yes, it does. Считать has more than one common meaning.

For example:

• Я считаю расходы = I count expenses
• Я считаю, что это правильно = I think that this is correct
• Я считаю его умным = I consider him smart

So how do you know which meaning it has?
You look at the context and the object:

• with numbers, money, items, totals, etc. → count
• with a clause or opinion → think / consider

In your sentence, расходы means expenses, so считаю is understood as count / total up / track.