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Best Mortgage Calculator Apps in 2026

Not a sponsored list. We analyzed 318 real negative reviews from the top Mortgage Calculator apps. Here's what each one gets wrong — so you can pick the least broken one.

4
Apps Compared
318
Reviews Analyzed

1. Rocket Mortgage

Main Weakness

Lack of principal-only payment options and poor customer support

"They give you an option to pay towards your escrow acct, but absolutely no way to pay towards your principal."
"Worst company for customer support."

2. Loan Calculator - Debt Planner

Main Weakness

Overwhelming and intrusive advertisements

"An ad will pop up every 2 calculations."
"Ads pop up literally every 4 seconds. LITERALLY."

3. Loan Calculator‰

Main Weakness

Misleading pricing and excessive ads

"Disappointed about having to deal with ads on a loan calculator."
"The developer really wants to show you ads, above anything else."

4. Loan Calculator - Loan2Me

Main Weakness

Missing critical loan features like taxes, insurance, and amortization schedules

"This doesn’t give you APR."
"Doesn’t include property tax input, insurance or additional like HOA or special assessments."

The Bottom Line

The most significant insight from the analysis of 318 negative reviews in the 'Mortgage Calculator' category is the overwhelming dissatisfaction with intrusive advertisements, which account for 62% of all complaints. Users express frustration at the frequency and intrusiveness of ads, which often render the apps unusable. Additionally, 47% of reviews highlight the lack of essential features such a...

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