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Expense tracking: spreadsheet or app, which to choose?

The best tracking method is the one you can keep up for months. Here is how to compare a notebook, a spreadsheet and an app, and how to build the minimum that works.

By the Life in Your Pocket team · Updated on November 2, 2026

Almost everyone has started an expense tracker and quit. Most of the time the problem is not discipline but a method too heavy for the routine. The useful question is not "which is best?" but "which will I keep up for months?". This guide compares the options and suggests the minimum that works.

Five criteria for choosing

• Effort: how many minutes a week, and whether you can log on the spot.
• Monthly view: whether you can quickly see what you have spent and what is left.
• Categories: whether they are easy to create, merge and change.
• Privacy: who has access to your data.
• Cost: free, ad-supported or paid.

Quick comparison

Which one fits you

• Just starting and want to build the habit: notebook or a manual-entry app for one month.
• Like numbers and control: spreadsheet.
• Rarely remember to write things down: an app that cuts typing, with attention to permissions.
• Share bills with someone: a shared spreadsheet or an app with a joint account.

The minimal spreadsheet

Five columns are enough:

Then total by category and compare with the plan. The numbers in the example are made up.

Categories that work

Housing, food, transport, health, education, debt, fun, savings and "other". If "other" passes 10% of the total, split it into two categories.

The 15-minute weekly review

1. Log what was left out (receipts, statement).
2. Look at the total per category.
3. Compare with the limit you set for the month.
4. Decide one single change for next week.

Cautions with apps

• Read the permissions before installing and be wary of access requests unrelated to the app's job.
• Never share your bank password with an app.
• Prefer apps that only read, not ones that move money.
• Turn on a passcode or biometric lock on your phone.

Common mistakes

• Creating too many categories and giving up.
• Logging only when you "feel like it".
• Mixing the budget (the plan) with tracking (what happened).
• Switching method every month without really testing.

Hard-to-categorize cases

• Installment purchases: pick one rule and keep it: log each installment in the month it is due, or the full amount in the month of purchase. The first shows the real weight of each month.
• Cash: note it on the spot or, if you cannot, treat the weekly withdrawal as "pocket spending" and track only that total.
• Split expenses: log only your share, or log everything and enter the reimbursement as a negative amount.
• Subscriptions: one line per service, so you can see the total at month-end and cancel what you do not use.

A sample month summary

Made-up numbers for the example. What matters is the difference column: food and fun went over, transport came in under. Next month's decision comes from there, for example adjusting the food limit or planning fun better.

A 30-minute monthly ritual

At month-end, close the summary, note what explained the biggest differences, adjust next month's limits and move the savings amount aside before spending. If the gap always goes the same way, the problem is the plan, not discipline.

Tracking only matters if it leads to a decision. With spending recorded, the next step is to plan the month, as in the zero-based budgetor to use a simple split such as the 50-30-20 rule. General information, not financial advice.