Estimating build cost

# מהמקור

I'm a complete newbie to this world and have been struggling to find a clear answer to the question of cost. I am trying to build a database app that stands as a catalog that can be searched and added to by users. When it comes to cost I've mainly seen monthly cost listed for multiple service like Claude code and other services to refine, test, and launch the app. These cost seem to range about 2-300 a month but is that until its built or reoccurring as an operating cost? Is there a way to build the app and then use minimal services to keep it running and trouble shoot when issue arise? Forgive me if this has been answered already. I looked at previous post and found vague answers only. Hoping to get some insight to start building. Ed