Karl's Mortgage Calculator app icon

Karl's Mortgage Calculator

by Dr Karl Jeacle

EN / ES / FR / ITFlatSentimenttrend not available
Appeye score 84 out of 100, from 1,488 reviews (high confidence)

1,488 reviews analysed · 13 Feb 2009 – 2 Sep 2026 · scored 17 Sep 2026

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Based on 1,488 reviews from 13 Feb 2009 - 2 Sept 2026.

Overview

Appeye score
84/100high confidence
Category rank
#698 of 3,967Finance
Reviews analysed
1.5KScored reviews across both stores.
Sentiment trend
FlatIts trend signals are holding steady.
App Store
4.4

124 ratings

Review sentiment

82
App nameKarl's Mortgage Calculator
SellerKarl Jeacle
GenreFinance
Version2.7.2
Content rating4+
Requires iOS15.0
Size18 MB
Released4 Dec 2015
Current version30 Aug 2026
View on App Store
Play Store
4.4

7.1K ratings · 1,000,000+ installs

Review sentiment

76

Star distribution

1★ 3.2% · 2★ 3.2% · 3★ 10.9% · 4★ 82.7% · 5★ 0%
App nameKarl's Mortgage Calculator
DeveloperDr Karl Jeacle
GenreFinance
VersionVaries with device
Content ratingEveryone
Reviews on store1.4K
App description

Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three. Enter a down payment amount or percentage and let the calculator show how large a mortgage you require. See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance. The calculator supports Fixed and Adjustable Rate Mortgages (ARM) loans with up to five changes in interest rates. Interest-only mortgages loans are also supported. You can pay off your mortgage early with extra payments. Add one-off, monthly and annual extra payments. Choose up to ten additional extra payment amounts and payment periods and the calculator will show how much money you can save on the loan. Choose from weekly to annual loan payments and adjust the compounding period from daily through annual periods. The calculator supports Canadian mortgages along with UK annual rest mortgages. Multiple rounding options on loan calculations are also available. Choose between no rounding, round half up, half down, to even, to ceiling and to floor. The calculator also supports the input and display of multiple currencies.

Score by store

Appeye's overall score out of 100, calculated separately for each store.

App Store
85/100

from 79 reviews (limited confidence)

Play Store
82/100

from 1,409 reviews (high confidence)

Gap between stores: 3 points

Sentiment over time

Calendar-month positive review share for the selected store view. Overall is review-weighted across stores; months with fewer than 10 reviews are left out.

Monthly positive review share
0%50%100%42%83%Apr 2013Apr 2020

Version history sentiment

Per-release positive review share for each app version that has at least 3 analysed reviews, oldest first — so you can see whether the last real release helped or hurt separately from the calendar-month trend.

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Version history

No version snapshots recorded for this app yet.

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