App comparison
Undebt.it vs Debt Payoff Planner: Which Is Better?
The two most popular DIY debt payoff tools, compared honestly: platform, strategies, pricing, ads, and the one gap they share.
Quick answer: pick Undebt.it if you live on a desktop and want maximum configurability. Pick Debt Payoff Planner if you want a simple phone app for tracking balances. The snowball and avalanche math is good in both; the difference is where and how you use them.
Both tools have earned their reputations. They are affordable, they respect manual entry, and they run the payoff math correctly, which already puts them ahead of most budgeting apps at this one job. But they are built for different people, and both leave the same job undone. Here is the full picture.
Undebt.it vs Debt Payoff Planner at a glance
| Feature | Undebt.it | Debt Payoff Planner |
|---|---|---|
| Platform | Web-based, shines on desktop | Mobile app, phone-first |
| Payoff strategies | Snowball, avalanche, custom, and more | Snowball, avalanche, custom |
| Configurability | Very high, spreadsheet-style controls | Moderate, simpler interface |
| Ads | No ad-heavy experience | Free tier is ad-supported |
| Pricing | Free version; low-cost upgrade | Free with ads; paid upgrade |
| Bank linking | Optional sync; manual works fine | Manual entry |
| Guidance | Self-directed | Self-directed |
Features and pricing change; verify current details on each product's site before you commit.
The four differences that actually matter
1. Desktop power vs phone convenience
This is the biggest fork in the road. Undebt.it is a web tool that rewards a big screen: tables, options, scenario comparisons, custom payment plans. Debt Payoff Planner lives on your phone, which makes it easier to check in and log a payment from the couch. Be honest about which device you will actually open in month four, because the best tool is the one you keep using.
2. Configurability vs simplicity
Undebt.it is the power user's pick. It supports more payoff methods and more knobs: custom orders, promo-rate handling, one-off payments, multiple scenarios side by side. Debt Payoff Planner covers the core strategies with far less setup. If reading that list excited you, choose Undebt.it. If it sounded like homework, choose Debt Payoff Planner.
3. Ads and pricing
Both are inexpensive, but the models differ. Undebt.it has long offered a generous free version with a low-cost upgrade. Debt Payoff Planner's free tier is ad-supported, with a paid upgrade to remove ads and unlock features. Ads inside a debt app bother some people more than a small subscription does; know which camp you are in.
4. What happens after setup
Here is where the two tools stop differing and start matching: both are self-directed. You pick the strategy, you update the balances, you supply the discipline. That works great in week one, when motivation is free. The test is month three, when the novelty is gone and the balance still has a long way to fall. Neither tool is built to pull you back in with a next step, and that, not bad math, is where most DIY payoff plans quietly die.
The verdict
Choose Undebt.it if...
You manage money at a desk, want the most payoff methods and configuration options, and enjoy running your own scenarios. It is the most capable DIY payoff tool on the web.
Choose Debt Payoff Planner if...
You want a straightforward phone app to track balances and progress, and you are fine picking your own strategy and living with ads on the free tier.
Choose Debt Driver if...
You want the strategy recommended for you and a weekly plan that keeps the payoff moving. It trades configurability for guidance: enter your debts, get your payoff order, debt-free date, and weekly action items. No ads, no bank linking.
One disclosure: Debt Driver is our product. The comparison above is honest anyway, because the three apps genuinely serve different people. If you are a tinkerer, Undebt.it will make you happy, and we say so on our own Debt Driver vs Undebt.it page. Same for the phone-first tracker crowd on Debt Driver vs Debt Payoff Planner.
Want the plan without the setup?
Debt Driver runs snowball and avalanche on your real numbers, recommends the winner, and hands you a weekly checklist. About two minutes from debts to debt-free date.
Get My Personalized Plan →Related reading: best debt payoff apps in 2026, debt payoff apps that don't link to your bank account, what debt should I pay off first? Try the debt snowball calculator and debt avalanche calculator. See pricing.
Frequently asked questions
Is Undebt.it or Debt Payoff Planner better?
It depends on where you manage money. Undebt.it is the stronger tool on a desktop browser: more payoff methods, more configuration, more scenario tinkering. Debt Payoff Planner is the stronger phone experience: a simpler mobile app for tracking balances and progress. The payoff math (snowball and avalanche) is solid in both.
Is Undebt.it free?
Undebt.it offers a free version with an optional low-cost upgrade for extra features. It has historically been one of the cheapest capable payoff tools available. Pricing can change, so verify current details on undebt.it before signing up.
Is Debt Payoff Planner free?
Debt Payoff Planner has a free, ad-supported tier with a paid upgrade that removes ads and unlocks extra features. Pricing and feature splits change between versions, so check the current app store listing.
Do Undebt.it and Debt Payoff Planner require bank linking?
Neither requires it. Debt Payoff Planner is built around manual entry. Undebt.it offers optional account syncing but works fully with manual entry. If avoiding bank connections matters to you, both qualify, as does Debt Driver, which never asks for bank credentials at all.
What do Undebt.it and Debt Payoff Planner have in common?
Both are self-directed tools: you choose the payoff strategy, configure the plan, keep your balances updated, and keep yourself motivated. Both run snowball and avalanche math well. Neither is built to tell you what to do next each week, which is the main reason people stall out a few months into a payoff.
Is there an app that recommends the payoff strategy for me?
Yes. Debt Driver runs snowball and avalanche on your real numbers, recommends the strategy that fits your goal, and turns the plan into weekly action items. It is built for people who want a guided plan instead of a tool to configure. It offers a free trial, so you can see your debt-free date before paying.
Undebt.it and Debt Payoff Planner are products and trademarks of their respective owners. Debt Driver is not affiliated with either. This page is editorial comparison from Debt Driver's perspective; features and pricing change, so re-check each product's site before you buy. Debt Driver is a debt payoff planning app, not a lender, debt-settlement company, or credit-counseling agency. Nothing here is financial, tax, or legal advice.