If you're open to paid tools too, we wrote a full comparison of the best debt payoff apps in 2026 — including YNAB, Monarch Money, Tally, and others with paid tiers. For the big-picture guide on getting out of debt, see how to get out of debt fast.
If you're Googling "free debt payoff planner," you're probably drowning in options that all look the same. Most of them are either stripped-down upsell funnels or decade-old calculators with a fresh coat of paint.
Here's an honest breakdown of what's actually available in 2026, what each tool does well, and where they come up short. Full disclosure: RealiPlan is on this list, and I built it. I'll be upfront about what it does and doesn't do.
Undebt.it — The OG
Price: Free (premium tier available) Platform: Web only
Undebt.it has been around for over 10 years and has helped hundreds of thousands of people. It supports eight different payoff strategies — more than any other tool — and lets you customize the debt order manually.
What it does well: Strategy variety. If you want to try snowball, avalanche, highest minimum payment first, or a custom order, Undebt.it has you covered. The community is solid. The tool is proven.
Where it falls short: It's a debt-only tool. No income tracking, no bill scheduling, no cash flow awareness. The UI shows its age — functional but not modern. And because it doesn't know when you get paid or when your bills hit, the timeline it gives you is based on monthly averages, not your actual cash flow.
Best for: People who want maximum strategy options and don't need budgeting integration.
EveryDollar — The Dave Ramsey Ecosystem
Price: Free tier (Ramsey+ at $17.99/mo for bank connections) Platform: Web + Mobile
EveryDollar is Dave Ramsey's zero-based budgeting app. The free version gives you a monthly budget builder where you assign every dollar a job. It pairs with the Dave Ramsey "Baby Steps" methodology, which uses the snowball method exclusively.
What it does well: Simple, opinionated, motivational. If you're a Dave Ramsey follower, this is the natural choice. The zero-based budget concept is powerful for people who've never tracked spending.
Where it falls short: Snowball only — no avalanche, no comparison. The free tier doesn't connect to your bank, so all tracking is manual. It's a budgeting app with debt tracking bolted on, not a purpose-built debt payoff planner. And at $17.99/month for Ramsey+, the paid tier is expensive for what you get.
Best for: Dave Ramsey followers who want an all-in-one budget + debt tracker within that methodology.
Debt Payoff Planner — The Mobile Standard
Price: Free (ad-supported; $0.99 one-time for ad removal) Platform: iOS + Android
This is the most downloaded debt payoff app on mobile. You enter your debts, pick snowball or avalanche, and get a month-by-month schedule with charts. It's simple and it works.
What it does well: Mobile-first experience. Clean UI. The one-time $0.99 price for ad removal is refreshingly honest. Charts and visualizations are solid for a free app.
Where it falls short: No budgeting. No income tracking. No awareness of when bills are due or when you get paid. It's a calculator in app form — it tells you a number, not a plan. Web version doesn't exist, so you can't reference your plan on a desktop.
Best for: Mobile users who want a quick debt payoff calculator without the overhead of budgeting.
Bankrate / NerdWallet / Credit Karma Calculators
Price: Free Platform: Web
Every major personal finance site has a debt payoff calculator. They're functional, well-designed, and backed by strong SEO so you've probably already seen them.
What they do well: Quick math. Punch in a balance, rate, and payment, and get a number. No signup required. NerdWallet's comparisons are genuinely useful for context.
Where they fall short: These are single-debt calculators. They don't handle multiple debts with different rates and due dates. They don't model snowball vs. avalanche. They don't track your progress over time. They're tools for a one-time calculation, not an ongoing plan.
Best for: Quick "how long will this one debt take?" answers.
RealiPlan — Cash Flow-Aware Planning
Price: Free tier (5 projections/mo); Pro at $7.99/mo or $59.99/yr Platform: Web
RealiPlan is different from the tools above in one fundamental way: it knows when your money moves. You enter your pay schedule (biweekly on Fridays, twice monthly on the 1st and 15th, etc.), your bill due dates, and your debts with their statement and due dates. The engine then simulates month by month using your actual cash flow — not averages.
What it does well: Three strategy options (snowball, avalanche, and hybrid) compared side-by-side with your actual debt-free date for each. Cash flow awareness means your projections account for the months when money is tight, not just the months when everything lines up. Promo rate intelligence models what happens when your 0% introductory APR expires — something no other tool on this list does. Pro users get AI-powered strategy recommendations that analyze your specific debts, rates, and promo expirations, plus a consolidation analysis that calculates whether rolling debts into a lower-rate loan would save you money.
Where it falls short: It's web-only right now — no mobile app. The free tier caps projections at 5/month (enough for most people, but power users will hit it). AI recommendations and promo rate modeling are Pro-only. And as a newer product, it doesn't have the community or track record of Undebt.it.
Best for: People who want a realistic payoff plan that accounts for their actual financial calendar, not just their balances and rates.
How to Choose
The "best" tool depends on what's holding you back.
If you've never calculated your debt payoff timeline at all, start with any calculator — Bankrate, NerdWallet, Debt Payoff Planner. Just seeing the number is step one.
If you know your numbers and want to seriously track a multi-debt payoff strategy, look at Undebt.it or RealiPlan. Undebt.it for maximum strategy options. RealiPlan if you want your paycheck schedule and bill dates factored in.
If you need a full budget + debt solution and you're aligned with the Dave Ramsey method, EveryDollar makes sense.
The tool matters less than the action. Pick one, enter your debts, and see your debt-free date. That number is more motivating than any app's feature list.
Ready to run your numbers?
RealiPlan compares snowball, avalanche, and hybrid side by side — using your actual pay schedule and bill dates.