Simple-model Loan Calculator
簡易型ローン計算機 LoanCalc
Simple-model Loan Calculator is #19 in Finance Paid in Japan and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperRYUICHIROU SHIMONO
CategoryFinance
Price150 JPY
Released
Rating★ 4.9 (16)
Version3.2
Age rating4+
First seen by us
25 Sep 2026
Installs (est.)500+ worldwide
Rating
4.9 ★
16 ratings
Measured
Best rank now
#19
Measured
Simple-model Loan Calculator on the App Store
App details
App ID
703546831
Publisher
RYUICHIROU SHIMONO
Minimum OS
iOS 17.0+
Content rating
4+
Languages
2
EN JA
Size
1 MB
Simple-model Loan Calculator downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Simple-model Loan Calculator's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Business model: Ad-led
How Simple-model Loan Calculator makes money: subscriptions, one-off purchases and ads.
Ads · 1 ad networks
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| FinancePaid | #19 |
Apps near Simple-model Loan Calculator on the chart
Finance Paid, around #19.
Ratings
App Store, worldwide.
Rating
4.9 ★
16 ratings
Measured
Ratings
16
Measured
About Simple-model Loan Calculator
Enter the loan amount, interest rate, and repayment period, and see your monthly payment, total repayment, and the total interest you will pay — all updated as you type. Works for mortgages, auto loans, student loans, and more, with both equal-payment and equal-principal repayment methods.
■ Compare two loans
Is the lower rate with a longer term from Bank A better than the shorter term from Bank B? Pick two saved loans, and the app tells you in plain words how they differ in first monthly payment, total interest and payoff date, for example "Bank B's total interest is $12,000.00 less than Bank A's." A side-by-side table of amount, rate, term and totals and a chart of both balances over time let you check the difference.
■ Features
- Supports both equal payment (principal & interest) and equal principal repayment
- Results update as you type. There is no "calculate" button to press
- Shows the monthly payment, total repayment, and total interest together (plus the bonus-month payment when bonus repayments are on)
- A breakdown bar shows the split between principal and interest at a glance
- A full amortization schedule from the first payment to the last, with the principal, interest, and remaining balance for every payment
- See the schedule as a chart: the principal and interest you repay each year, and how the balance goes down
- Export the schedule as a CSV file to open in Numbers or Excel
- Bonus repayments twice a year, with a choice of months and share, for the bonus payments that are customary in Japan (shown when the currency is Japanese Yen)
- Choose how fractions are handled: round down, round to nearest, or round up
- Save any set of conditions to your history and load it back anytime, and give it a name such as "Bank A variable"
■ Currencies
Japanese Yen, US Dollar, Euro, and British Pound are supported. The app picks one for you based on your region, and you can change it at any time under Settings on the calculator screen. Amounts are rounded to the smallest unit of each currency — one yen, one cent, and so on. Changing the currency also changes the interest rate the app starts from, so the figure you see first is a realistic one for that region.
■ Requirements and support
- iPhone and iPad
- On iPad, your history and the calculator sit side by side, and you can open several windows to view different loans at once
- Works alongside other apps such as Safari in Split View
- Dark Mode
- Dynamic Type and VoiceOver, including Audio Graphs for charts
- Available in English and Japanese
■ Input ranges
- Loan amount: under 10,000,000 (under 1,000,000,000 for Japanese Yen)
- Annual interest rate: under 30%
- Repayment period: up to 99 years and 11 months
■ Please note
This app calculates estimates. Your actual payments, fees, and other costs depend on your lender and the terms of your agreement. Always confirm the figures with your lender before signing.
Everything is calculated on your device and no internet connection is requi
■ Compare two loans
Is the lower rate with a longer term from Bank A better than the shorter term from Bank B? Pick two saved loans, and the app tells you in plain words how they differ in first monthly payment, total interest and payoff date, for example "Bank B's total interest is $12,000.00 less than Bank A's." A side-by-side table of amount, rate, term and totals and a chart of both balances over time let you check the difference.
■ Features
- Supports both equal payment (principal & interest) and equal principal repayment
- Results update as you type. There is no "calculate" button to press
- Shows the monthly payment, total repayment, and total interest together (plus the bonus-month payment when bonus repayments are on)
- A breakdown bar shows the split between principal and interest at a glance
- A full amortization schedule from the first payment to the last, with the principal, interest, and remaining balance for every payment
- See the schedule as a chart: the principal and interest you repay each year, and how the balance goes down
- Export the schedule as a CSV file to open in Numbers or Excel
- Bonus repayments twice a year, with a choice of months and share, for the bonus payments that are customary in Japan (shown when the currency is Japanese Yen)
- Choose how fractions are handled: round down, round to nearest, or round up
- Save any set of conditions to your history and load it back anytime, and give it a name such as "Bank A variable"
■ Currencies
Japanese Yen, US Dollar, Euro, and British Pound are supported. The app picks one for you based on your region, and you can change it at any time under Settings on the calculator screen. Amounts are rounded to the smallest unit of each currency — one yen, one cent, and so on. Changing the currency also changes the interest rate the app starts from, so the figure you see first is a realistic one for that region.
■ Requirements and support
- iPhone and iPad
- On iPad, your history and the calculator sit side by side, and you can open several windows to view different loans at once
- Works alongside other apps such as Safari in Split View
- Dark Mode
- Dynamic Type and VoiceOver, including Audio Graphs for charts
- Available in English and Japanese
■ Input ranges
- Loan amount: under 10,000,000 (under 1,000,000,000 for Japanese Yen)
- Annual interest rate: under 30%
- Repayment period: up to 99 years and 11 months
■ Please note
This app calculates estimates. Your actual payments, fees, and other costs depend on your lender and the terms of your agreement. Always confirm the figures with your lender before signing.
Everything is calculated on your device and no internet connection is requi
Latest updates
3.2
バージョン3.2では、保存した2つのローンを比べられるようになりました。
■ 2つのプランを比較できるようになりました
履歴から2件を選ぶと、初回の月払返済額・利息総額・完済時期の差を「B銀行はA銀行より、利息総額が¥1,200,000少なくなります」のように文章でお知らせします。借入金額・金利・返済期間などを並べた比較表と、2つのローンの残高の減り方を重ねたグラフも表示します。履歴画面の右上にある比較ボタンから使えます(比較できるのは同じ通貨のローンどうしです)。
■ 履歴に名前を付けられるようになりました
「A銀行 変動」「固定金利案」のように名前を付けておくと、履歴や比較画面で見分けやすくなります。履歴の行を長押しして「名前を変更」を選んでください。
■ 償還予定表をグラフで見られるようになりました
予定表の上部で「表」と「グラフ」を切り替えられます。年ごとに返す元金と利息の内訳と、借入残高の推移が分かります。
■ 償還予定表をCSVで書き出せるようになりました
予定表の右上の共有ボタンから、NumbersやExcelで開けるCSVファイルとして保存・送信できます。ファイルは端末内で作成され、アプリが外部へ送信することはありません。
■ はじめて使う方への案内を追加しました
初回起動時に、償還予定表・履歴・通貨・ボーナス併用返済の使い方をご紹介します。「このアプリについて」の「使い方」からいつでも見返せます。
■ iPadで複数のウインドウを開けるようになりました
2つのウインドウで別々のローンを計算し、並べて見比べられます。履歴はすべてのウインドウで共有されます。
■ VoiceOverなどへの対応を改善しました
計算結果や入力エラーの読み上げ、「色の区別なし」や「コントラストを上げる」を設定したときの表示、ボタンの押しやすさを改善しました。グラフはVoiceOverのオーディオグラフで音として確かめられます。
計算の方法と結果は、これまでのバージョンから変えていません。
3.1
Version 3.1 adds a new screen and fixes several problems.
■ A new "About this app" screen
It brings together the version you are running, a link for reporting problems, the privacy policy, and a way to leave a review. Scroll to the bottom of the calculator screen to open it.
■ Amounts and rates are now handled correctly in every region
In regions that use a comma as the decimal separator, such as German- and French-speaking countries, an amount or rate you typed could be turned into an unintended value, and amounts could change when you opened a saved calculation. How numbers are shown and how they are read back now both follow your region's format.
■ The amortization schedule no longer shows the previous loan
Opening a second schedule from your history could leave the first loan's rows on screen.
■ Saved history is better protected
If your history ever becomes unreadable, it is no longer overwritten.
■ A faster history list
Scrolling is smoother when you have many saved calculations.
The calculations themselves are unchanged from previous versions.