We compared 7 debt payoff tools on features, pricing, and real-world usability. No affiliate deals. No ranking by who paid for placement. Just an honest breakdown of what each tool actually does well — and who it’s for.
The right tool depends on what you actually need. Here’s the fastest path to the right answer.
Instant debt-free date, snowball & avalanche, month-by-month schedule. No signup.
More configuration options, active community, multiple strategy variations.
Zero-based budgeting with debt tracking. Addresses the spending problem, not just the debt.
Clean iOS/Android app focused on snowball and avalanche with offline access.
Consolidates credit card debt at a lower rate and automates payments. Hands-off approach.
Round-ups automatically applied to student loan debt. Effortless micro-payments.
Round-ups applied across multiple debt types beyond student loans.
150–200 words per tool. What it does, what it costs, who it’s actually for.
What it does: Enter your debts, pick snowball or avalanche, and get an exact debt-free date with a month-by-month amortization table showing every balance, interest charge, and payment. No account required — results are instant. The Pro plan ($9.99/mo) adds saved plans, so you can store multiple what-if scenarios and share them.
DebtMelt’s differentiator is friction elimination. Most competing tools require you to create an account before seeing your numbers. DebtMelt gives you the output immediately — enter five debts, hit calculate, see your payoff date in 30 seconds. That immediacy matters because the first moment someone decides to attack their debt is the highest-intent moment. Don’t lose it to a signup form.
The Debt Score quiz is a useful companion — a 2-minute assessment that tells you which strategy fits your specific situation before you run the numbers.
What it does: A free web-based debt payoff planner with extensive configuration options. Supports snowball, avalanche, highest balance first, lowest APR first, custom order, and hybrid approaches. You can set custom payment dates, model lump-sum payments (like tax refunds), and track progress over time with a login.
Undebt.it has been around since ~2012 and has a dedicated user community. It’s more powerful than most free tools — the level of customization goes deep, which is a strength for analytical users and a potential source of overwhelm for beginners. The paid tier ($12/year, not $12/month) is one of the best value propositions in the category.
It does not connect to bank accounts — everything is manual entry. That’s a feature for privacy-conscious users, not just a limitation.
What it does: YNAB is a full budgeting system with debt payoff tracking built in. Its zero-based budgeting methodology requires you to assign every dollar of income to a category before spending it. The “debt payoff” use case is one slice of a broader system that also handles income, savings goals, and expense tracking with live bank sync.
YNAB costs $14.99/month ($99/year with annual billing). That’s expensive for a pure debt calculator. It’s worth it if the spending problem is why you’re in debt — YNAB’s system changes the relationship with money, not just the payoff schedule. Users who complete the learning curve consistently report stopping new debt accumulation, which no calculator can do.
If your spending is already under control and you just need to visualize a payoff plan, use a free calculator instead.
What it does: A mobile-first debt tracker for iOS and Android. You enter your debts, choose snowball or avalanche, and get a payoff schedule. The free version is functional; the paid tier ($2.99/month) adds reminders, multiple payment scenarios, and ad removal.
The app is straightforward and well-designed for mobile use. If the primary appeal is having a debt tracker you can check on your phone, this delivers. It doesn’t try to be a full budgeting system — it just tracks debts and shows the payoff path, which is exactly what many people want.
The lack of a web interface is a real limitation for users who primarily work at a desktop. You can view the schedule on mobile but inputting data on a small screen gets tedious for users with many debts.
What it does: Tally is different from every other tool on this list. Rather than showing you a payoff schedule, Tally extends you a line of credit, uses it to pay off your credit cards, and then you repay Tally at a (hopefully) lower interest rate. The app automates minimum payments to your cards and makes strategic extra payments.
The appeal is automation — you hand the complexity to Tally and it handles routing payments optimally. The catch: you need to qualify for a Tally line of credit, which requires a credit check and approval. The line of credit APR (7.9%–29.9%) determines whether you actually save money. If you don’t qualify for a meaningfully lower rate than your cards, Tally doesn’t help.
It’s not a calculator — it’s a financial product. Treat it accordingly.
What it does: ChangEd links to your bank account and rounds up every purchase to the nearest dollar. When your accumulated round-ups reach $5, the app sends a micro-payment to your student loans. The premise: effortless extra payments without changing your behavior.
The math is honest. Round-ups typically generate $50–$150/month depending on spending volume — not life-changing, but consistently extra payments do compound meaningfully over years. The $1/month fee is trivially low relative to the value if you stick with it.
The limitation is student loans only. If you have credit card debt at 20%+ APR, the mathematically correct move is to direct every spare dollar there first. ChangEd doesn’t help with that.
What it does: Similar to ChangEd, Qoins rounds up purchases and applies the accumulated amount to debt. Unlike ChangEd, it works across multiple debt types — credit cards, student loans, auto loans, personal loans. The app also supports direct recurring contributions on top of round-ups.
At $1.99/month, the cost is reasonable if the round-ups stay active. The primary advantage over ChangEd is debt type flexibility — if you have credit card debt and student loans, you can direct round-ups to whichever is higher priority.
Neither Qoins nor ChangEd replaces a real payoff strategy. They’re supplemental tools that add micro-payments without active effort — best used alongside a structured snowball or avalanche plan, not instead of one.
No account. No download. Enter your debts and get an exact payoff schedule instantly.
Every feature that matters for debt payoff, across all 7 tools. Partial = available but limited or paid-tier only.
| Tool | Free Tier | Snowball | Avalanche | What-If Modeling | Mobile App | Bank Sync | No Signup Required | Save Plans |
|---|---|---|---|---|---|---|---|---|
| DebtMelt | ✓ | ✓ | ✓ | ✓ | Browser | — | ✓ | Pro only |
| Undebt.it | ✓ | ✓ | ✓ | ✓ | Browser | — | — | ✓ |
| YNAB | Trial only | Via budgets | Via budgets | ✓ | ✓ | ✓ | — | ✓ |
| Debt Payoff Planner | ✓ | ✓ | ✓ | Paid only | ✓ | — | — | ✓ |
| Tally | ✓ | Auto only | Auto only | — | ✓ | ✓ | — | — |
| ChangEd | Trial only | — | — | — | ✓ | ✓ | — | — |
| Qoins | Trial only | — | — | — | ✓ | ✓ | — | — |
This comparison is not sponsored. None of the tools on this list paid for placement. We included tools with meaningful user bases and genuine utility. Here’s exactly what we evaluated:
We didn’t include tools that were abandoned, lacked meaningful user bases, or didn’t function reliably. If a major tool is missing, it was likely excluded for one of those reasons.
One rule first: the best debt payoff tool is the one you’ll actually use consistently. A perfect app you abandon after two weeks is worth less than a good-enough one you check every month. With that said, here’s how to match your situation to the right choice.
Use DebtMelt. Enter your debts, pick snowball or avalanche, see your exact payoff date and month-by-month schedule in under a minute. No account required. Takes 2–3 minutes total.
Use Undebt.it. It supports lump-sum payments, custom extra payment amounts per month, and more strategy variations. Create a free account and stay in it for detailed long-term tracking.
Use YNAB. The $14.99/month is only worth it if it changes your spending behavior. If you keep accumulating new debt while trying to pay off old debt, a calculator doesn’t fix that — a budgeting system does. YNAB is built for this.
Use Debt Payoff Planner. Clean iOS/Android app with offline access. Works well for tracking and checking payoff progress on mobile. Free tier is functional; $2.99/month removes ads and adds scenarios.
Consider Tally — but only if you can qualify for a line of credit at a rate meaningfully lower (3%+) than your current card rates. Check debt consolidation alternatives first to compare your options.
Use ChangEd alongside a primary payoff strategy. Round-ups add $50–$150/month of extra payments without changing your behavior. At $1/month, the ROI is good if you stay connected. Note: also check if you’re eligible for income-driven repayment or forgiveness programs on federal loans — these can be more impactful.
Take the 2-minute Debt Score quiz to understand which strategy fits your specific circumstances.
DebtMelt is the best free debt payoff calculator — it requires no account, no signup, and generates an exact debt-free date with a month-by-month payoff schedule instantly. Undebt.it is another strong free option with more customization. For a full budgeting app, YNAB has a 34-day free trial but costs $14.99/month after. The right choice depends on whether you need a calculator (free tools) or a behavioral budgeting system (YNAB).
Both DebtMelt and Undebt.it support the debt snowball method well. DebtMelt generates instant snowball schedules with no signup required. Undebt.it offers more detailed customization including custom payment dates and lump-sum payment scenarios. Both are free — the difference is speed vs. configurability.
YNAB is worth it if you need to fix the underlying spending problem, not just track the debt. Its zero-based budgeting system forces you to assign every dollar a job, which addresses why debt built up in the first place. At $14.99/month, the math works if the behavior change it drives saves you more than that in interest — which it often does for people who struggle with budgeting. If your spending is already under control and you just need payoff math, a free tool like DebtMelt is sufficient.
DebtMelt is optimized for speed and simplicity — enter debts, get your debt-free date instantly, no account required. Undebt.it offers more configuration options (custom payment dates, lump-sum scenarios, more strategy variations) and has been around longer with a dedicated community. Both are free. DebtMelt is better for quick calculations; Undebt.it is better for detailed ongoing tracking with a login.
Calculators like DebtMelt and Undebt.it are completely safe — they don’t require bank account connections. You manually enter debt balances. Apps that connect to your bank accounts (like YNAB) use read-only connections via Plaid, which is standard and secure. Never give a debt app your actual bank login credentials directly. Tally requires a credit check and opens a line of credit — treat that as any financial product and read the terms carefully.
For student loans, DebtMelt works well as a general debt payoff calculator where you include your loans alongside other debts. ChangEd is specifically built for student loans and uses round-ups to make micro-payments. If you have federal student loans, also check studentaid.gov for income-driven repayment and forgiveness programs — these aren’t apps but can be more impactful than any calculator.
Use a dedicated app or calculator rather than a spreadsheet unless you specifically enjoy building spreadsheets. Apps like DebtMelt handle amortization math correctly (which most DIY spreadsheets get wrong), auto-generate the payoff schedule, and show what-if scenarios instantly. Spreadsheets are error-prone for compound interest calculations and require significant setup. The best tool is the one you’ll actually use consistently.
Undebt.it is a legitimate free web-based debt payoff planner operating since ~2012. It supports multiple payoff strategies including snowball, avalanche, and hybrid approaches and has a strong user community. The free version is fully capable; a paid tier ($12/year) adds extra features. It does not connect to bank accounts — you enter balances manually, which makes it safe to use without any account access concerns.
Enter your debts, pick snowball or avalanche, and get your exact payoff schedule. Free, no account, takes 2 minutes.
Free forever — no account required