Every debt payoff journey starts with the same question: where do I keep track of all this? Two camps have formed. One swears by the trusty spreadsheet. The other swears at it and uses an app.
We make a web app, so you might expect us to tell you spreadsheets are for dinosaurs. We will not. Spreadsheets are great for some people. The real question is not which tool is best in theory. It is which tool will you still be opening in month fourteen, when the novelty has worn off and you are still $9,000 from done.
Quick refresher: what is the debt snowball?
The debt snowball is a payoff strategy where you pay minimums on everything, then throw every extra dollar at your smallest balance. When it is gone, its payment rolls into the next smallest. The payments get bigger like a snowball rolling downhill. (Its cousin, the avalanche, targets the highest interest rate instead. We compare the two in this breakdown.)
Either way, you need a tool that answers three questions every month: how much do I owe, which card gets the extra money, and when will I be done?
Side-by-side comparison
| Spreadsheet | Web app (like DebtSunset) | |
|---|---|---|
| Cost | Free (Google Sheets, Excel) | Free tier; some features paid |
| Setup time | 30 to 90 minutes if you build it; 10 minutes with a template | About 5 minutes |
| Formula errors | Common, and silent | Math is built in and tested |
| Snowball vs. avalanche comparison | Needs two copies or advanced formulas | Side-by-side in one click |
| Updating balances | Manual, every month | Quick balance updates with history kept |
| Charts and reports | Possible, but you build them | Included (progress, utilization, breakdowns) |
| Customization | Unlimited | Limited to what the app offers |
| Privacy | Stays in your own file | Stored on the service; read its privacy policy |
| Best for | Tinkerers who love spreadsheets | People who want the answer fast and to stay consistent |
The case for a spreadsheet
It is free and it is yours. Your data never leaves your computer (or your Google account). No logins, no subscriptions.
You can bend it any way you like. Want a column for your side-hustle income? A cell that turns green on payday? Go for it.
Building it teaches you the math. Writing the interest formula yourself (balance times APR divided by 12) makes the cost of debt painfully real in a way that can be motivating.
The case against a spreadsheet
Silent formula errors. This is the big one. Spreadsheet research has repeatedly found that a large share of real-world spreadsheets contain at least one error. In a payoff sheet, one bad cell reference can make your debt-free date wrong by a year, and nothing will warn you.
The rollover is tricky. The magic of the snowball is that freed-up payments roll forward. Modeling that correctly, month by month, across five cards, takes nested formulas that most templates get subtly wrong.
Comparing strategies is a chore. Want to see snowball versus avalanche? You need a second sheet and the patience to keep both in sync.
Maintenance fatigue. The spreadsheet works great in month one. By month six, you are copying rows, fixing broken charts, and wondering why the totals do not match your statements.
The case for a web app
The math is done for you, correctly. Interest, minimums, rollovers, and payoff dates are calculated the same way every time.
Instant what-ifs. "What if I pay $100 more?" is a slider, not a rebuilt spreadsheet. Seeing a payoff date jump forward six months is powerful motivation.
Built-in visuals. Progress charts, utilization reports, and balance breakdowns are already there. In DebtSunset, the reports show where your money goes and how your utilization is trending.
Lower friction means you keep going. Updating a few balances takes a minute. Less friction is the whole game with long-term habits.
The case against a web app
Less flexible. If you want something the app does not offer, you are stuck.
You are trusting a service with your numbers. Read the privacy policy. A good payoff planner does not need your bank password, just balances and rates you type in.
Some features cost money. Many apps, including ours, have a free tier and paid extras.
Which one is right for you? A 30-second quiz
| If this sounds like you... | Go with |
|---|---|
| "I build budgets in Excel for fun." | Spreadsheet |
| "I just want to know my debt-free date and what to pay this month." | Web app |
| "I have tried spreadsheets and abandoned them twice." | Web app |
| "I do not want my debt data anywhere online." | Spreadsheet |
| "I want to compare snowball and avalanche without doing math." | Web app |
| "I love customizing everything." | Spreadsheet |
Can you use both?
Absolutely, and plenty of people do. Use the app to calculate your plan and payoff order, and keep a simple spreadsheet or paper chart on the fridge for the satisfying ritual of coloring in progress. Our article on staying motivated has a few fun ways to do that.
Frequently asked questions
Is there a free debt snowball spreadsheet?
Yes. Many free Google Sheets and Excel templates exist. Double-check that the template rolls freed-up payments into the next debt, because many do not.
Is a debt payoff app better than a spreadsheet?
Not always. Apps are faster and less error-prone; spreadsheets are free and fully customizable. Choose the one you will keep updating every month.
What should a debt snowball tracker include?
Each debt's balance, APR, and minimum payment, your total monthly payment, the payoff order, and a projected payoff date for each debt.
Figures in this article are illustrative estimates that assume a fixed APR, no new charges, and a typical minimum-payment formula (1% of balance plus interest, $25 floor). Your card issuer's exact formula may differ. This is educational content, not individual financial advice.