Best debt payoff apps, ranked by workflow

This ranking compares the same platform, price, account and payoff-method facts used on the Debtless homepage. Facts were checked October 23, 2026 on each product's primary pages; not stated means the checked page did not provide the fact.

  1. Debtless: best free, private iPhone payoff app

    Choose Debtless for Avalanche, Snowball, Cash Flow and Custom plans with no account, bank connection, subscription or paid tier.

  2. Undebt.it: best browser planner with more payoff orders

    Choose Undebt.it for a browser-based planner, a free one-off calculator and a wider set of payoff-order choices.

  3. Debt Payoff Planner: best account-based manual tracker

    Choose Debt Payoff Planner when you want an account-based plan and will record payments manually.

Compared fieldDebtlessUndebt.itDebt Payoff Planner
PlatformiPhone, iOS 18.2 or laterWeb browser; installable on iPhone and AndroidNot stated on the checked page
PriceEvery feature is free; no paid tierFree planner; Undebt.it+ is $10/yearFree plan; Pro from $2/month
Account and bank dataNo account or bank linkingNo account for the one-off calculator; account needed to save a plan; optional paid syncAccount required; no bank linking
Payoff featuresAvalanche, Snowball, Cash Flow, CustomEight payoff orders including Avalanche, Snowball and CustomAvalanche, Snowball, Custom

Prices and product details can change. Recheck the current product page before choosing.

How biweekly payments can speed up a payoff

A year has 52 weeks, so paying half a monthly amount every two weeks produces 26 half payments. That equals 13 full monthly payments instead of 12. The extra annual payment can shorten the payoff and reduce interest when the lender applies it to the balance as intended.

Confirm how the lender applies partial payments

Some servicers credit each half payment when it arrives. Others hold the first half until a full payment is available, and some do not accept partial payments. Ask how partial and extra amounts are applied, whether a fee is involved, and how the next statement will show the payment before changing your schedule.

Add the extra payment without a paid program

The payoff benefit comes from paying the equivalent of one extra monthly payment each year, not from a special service. Once the lender confirms its rules, choose the simplest schedule it accepts.

  1. Call or check your account portal to confirm how the servicer applies partial or extra payments.
  2. If it applies them to principal, set up biweekly transfers of half your monthly payment from your checking account.
  3. If it doesn't, skip the biweekly split and instead make one extra full payment a year, marked explicitly for principal.
  4. Check the next statements to confirm each amount posted as expected.

Worked example · illustrative numbers

Example: one extra payment a year

Take a $6,000 balance at 18% APR with a $300 monthly payment. Paid straight, that takes about 24 months and costs roughly $1,187 in interest, simulated month by month.

Add the equivalent of one extra $300 payment each year, the effect a working biweekly schedule produces, and the same balance is paid off in about 23 months for roughly $1,129 in interest. In this hypothetical, one extra payment a year saves about a month and around $58 in interest, which is a modest but real result of that single extra payment.

Put this into practice with Debtless

Debtless ranks first here because every payoff feature is free and the ledger stays on your iPhone. It does not split or send biweekly payments. Once the lender confirms how extra payments are applied, record what posted and update the projected debt-free date in the Plan tab.

Download Debtless on the App Store

Common questions

Is biweekly the same as paying weekly?

No. Biweekly means every two weeks, which produces 26 payments a year. Weekly would produce 52 payments a year at a quarter of the monthly amount each, which is a different arithmetic result and less commonly offered by servicers.

Will my servicer charge me for setting up biweekly payments?

Some third-party services charge a setup or ongoing fee to manage biweekly payments for you. Doing it yourself through your own bank's bill pay or the servicer's own portal is usually free, so check both before paying for a service.

What if my loan doesn't allow extra principal payments?

Some loans include prepayment penalties or restrictions, though this is uncommon for most consumer credit cards and personal loans. Ask your servicer directly whether extra payments are accepted and applied to principal before building a plan around them.

Sources & further reading

General education for U.S. readers, not individualized financial, legal or tax advice. Examples are hypothetical; lender terms and actual interest calculations can differ. Check your current statements and agreements.

Published by Debtless with AI-assisted drafting. How this journal is made · Suggest a correction