Why Use a Debt Payoff App?

A dedicated debt payoff app does more than track balances. The best ones calculate your payoff timeline, model different strategies (snowball vs. avalanche), visualize your progress, and keep you accountable month to month. The right app turns an abstract debt number into a living, changing plan that responds to your inputs.

Manual spreadsheets work well for some people. But apps reduce friction, automate calculations, and often include motivational features like payoff countdowns and progress charts that keep you engaged for the long haul.

1. Undebt.it – Best Free Option for Multiple Debts

Price: Free (Plus plan: $12/year)
Platform: Web-based (mobile-friendly)

Undebt.it is the gold standard for free debt payoff planning. You enter all your debts manually, and the app calculates payoff dates for six different strategies: snowball, avalanche, highest payment first, highest balance first, lowest APR first, and custom ordering.

Key features:

  • Side-by-side strategy comparison showing total interest for each approach
  • Amortization schedule for every debt
  • Visual payoff timeline showing when each debt disappears
  • One-time payment simulator (drop in a windfall and see how it moves your date)
  • No account connection required—fully manual and private

Best for: Anyone with 3+ debts who wants maximum flexibility without paying for an app.

2. Debt Payoff Planner (iOS/Android) – Best Mobile App

Price: Free (Pro: $11.99/year)
Platform: iOS and Android

Debt Payoff Planner is the highest-rated debt app in both the App Store and Google Play. Its clean interface makes entering debts and running scenarios simple. The pro version adds a calendar view, debt payoff tracker with milestones, and unlimited debts (the free version limits you to three).

Key features:

  • Snowball and avalanche support
  • Visual payoff chart showing balance over time for each debt
  • Push notifications for payment due dates
  • Extra payment simulator

Best for: Mobile-first users who want a polished, easy-to-use app they can check daily.

3. YNAB (You Need a Budget) – Best for Combining Budgeting and Debt Payoff

Price: $109/year or $14.99/month (free trial available)
Platform: iOS, Android, Web

YNAB is primarily a budgeting tool, but its debt payoff features are excellent. Every month you can allocate money toward specific debts within your overall budget, and YNAB tracks exactly how much you are sending to principal vs. interest. It also connects to your bank accounts to automatically import transactions.

Best for: People who want one tool to manage both budgeting and debt payoff together. Not ideal if you only want a standalone debt tracker.

4. Tally – Best for Credit Card Debt Automation

Price: Free to use; Tally charges interest on the credit line it extends
Platform: iOS and Android

Tally is unique: it is not just a tracker but an actual credit line product. It connects to your credit cards, takes over payment management, and pays your highest-interest cards first automatically. If you qualify, Tally may offer a lower rate than your existing cards, effectively acting as a consolidation tool with built-in automation.

Best for: People with multiple credit cards who want completely automated debt management. Not suitable for non-credit-card debt.

5. Quicken Simplifi – Best for Comprehensive Financial Tracking

Price: $47.88/year
Platform: iOS, Android, Web

Simplifi by Quicken connects to all your accounts, tracks spending, and lets you create payoff plans for each debt. It is more of a whole-financial-picture tool than a pure debt tracker, but the debt payoff features are solid and the spending insights help you find extra money to redirect to your debts.

Comparison Table

AppPriceBest ForStrategiesBank Sync
Undebt.itFree / $12/yrMultiple debt strategies6 optionsNo
Debt Payoff PlannerFree / $12/yrMobile usersSnowball, AvalancheNo
YNAB$109/yrBudget + debtManual allocationYes
TallyFree (interest on credit line)Credit card automationAvalanche autoYes
Quicken Simplifi$48/yrFull financial viewCustomYes

How to Choose the Right App for You

Consider these questions:

  • How many debts do you have? If you have 5+, Undebt.it’s multiple strategy comparison is invaluable.
  • Do you want automation? YNAB and Simplifi sync bank accounts. Undebt.it and Debt Payoff Planner are manual.
  • Are you on a budget? Start with free options first. Most free tiers are sufficient for basic debt tracking.
  • Do you need mobile access? Debt Payoff Planner is the best pure mobile experience.

Frequently Asked Questions

Are debt payoff apps safe to use?

Apps that require bank account connections (YNAB, Simplifi) use read-only connections through services like Plaid and do not store your banking credentials. Apps like Undebt.it and Debt Payoff Planner are fully manual and require no account connection, making them the most private option.

Can I use a debt payoff app and a budgeting app at the same time?

Yes, and many people do. A budgeting app (like YNAB or Mint) shows you how much extra money you can redirect to debt each month. A dedicated debt payoff app (like Undebt.it) then shows you exactly how to deploy that money. They complement each other well.

What is the best free debt payoff app?

Undebt.it is the most feature-rich free option for web users managing multiple debts. Debt Payoff Planner is the best free mobile app. Both are excellent and free to use for core debt payoff planning.