Budgeting is the plan. Tracking is the autopsy. Planning feels productive because it is aspirational. Tracking is forensic, and it answers the only question that matters at the end of the month: where did it actually go? When your PhD stipend per month is fixed, that answer is always more interesting than you expect. Sometimes uncomfortably so.

YNAB does both in one system, which suits people who want the full ceremony. It asks for commitment. In return you get total clarity, assuming you keep feeding it. The feeding is the whole job. There is no way around the feeding.

EveryDollar's free tier does straightforward tracking without fuss, which makes it a solid free grad school budget tracker app for beginners. Log the expense, assign the category, move on. It is the least intimidating way to start, and least intimidating is a feature that does not get enough credit.

Rocket Money watches in the background for subscriptions and recurring charges, the silent killers of a stipend budget. It is the closest thing to set-it-and-forget-it on this list. One forgotten subscription found pays for the attention you did not have to spend.

Goodbudget takes the envelope approach digital. When the grocery envelope is empty, you are done. There is something about that hard boundary that works when your willpower has been depleted by dissertation stress. No negotiating with yourself. The envelope has spoken.

Copilot, for the iPhone crowd, makes tracking feel less like data entry and more like checking in. The interface matters more than people admit. An app you enjoy opening gets opened. An app that feels like homework gets deleted.

If you want a dedicated grad student expense tracker app rather than a full budgeting system, start with Rocket Money or EveryDollar and ignore the rest. Whichever you choose, your first month of tracked expenses will surprise you. That surprise is the product working. And for the other side of the ledger, the cost-of-living-adjusted offer reports at phdstipend.fyi show what your stipend actually buys in each city.