# Japan Mortgage Sim — Easily simulate repayments

> Japanese mortgage repayment calculator for home loan simulations. (iPhone/iPad app by Yung Chou Wu.)

- Source: https://appshunter.io/ios/app/japan-mortgage-sim/id6480389964 (this page in markdown: same URL + `.md`)
- Developer: [Yung Chou Wu](https://appshunter.io/developer/1738865230)
- Category: Finance, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 17 MB
- Languages: American English, Japanese, Chinese (Traditional, Taiwan)
- Released: 2024-04-04
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/japan-mortgage-sim/id6480389964/reviews.md

## What is Japan Mortgage Sim?

As a Japanese mortgage calculation app, this application features a simple and intuitive interface, making it easy to perform home loan calculations and simulations. By simply entering the necessary information, you can quickly check your monthly repayment amount. Additionally, the screen is organized and easy to read, allowing you to plan without complicated procedures.

## Key features

- Home loan calculations
- Repayment simulations
- Monthly repayment amount check
- Simple and intuitive interface
- Organized and easy-to-read screen
- Straightforward planning

## Recent user reviews (5 of 5)

All indexed reviews: https://appshunter.io/ios/app/japan-mortgage-sim/id6480389964/reviews.md

### 3/5 — 計算間違ってます

*2025-09-03, version 2.0.0*

元利金等返済と元金均等返済を同条件で比べると元金均等返済の方が総利息が倍近く増えますね。計算式が間違ってますよ。

追記:こちらの間違いの指摘から修正まで対応が素早かったです。

### 5/5 — いいね👍👍👍

*2024-09-06, version 1.0.7*

こんなアプリ探していた。シンプルで使いやすいですね。ありがとうございます😊

### 5/5 — 便捷、實用

*2024-08-09, version 1.0.6*

便捷、實用

### 5/5 — 試算房貸

*2024-08-06, version 1.0.6*

方便又清楚

### 5/5 — 👍

*2024-07-29, version 1.0.4*

很好的介面

## Frequently asked questions about Japan Mortgage Sim

### What is Japan Mortgage Sim used for?

Japan Mortgage Sim is a finance application designed to help users easily calculate and simulate Japanese home loan repayments. It allows for quick checks of monthly repayment amounts by entering necessary information.

### Is Japan Mortgage Sim free to use?

Yes, Japan Mortgage Sim is available for free. It does not require any payment to download or use its core features for mortgage calculations and simulations.

### What devices does Japan Mortgage Sim support?

Japan Mortgage Sim is compatible with both iPhone and iPad devices. It is designed to run on Apple's iOS operating system.

### How often is Japan Mortgage Sim updated?

The latest version of Japan Mortgage Sim is 2.1.1, last updated on March 17, 2026. This indicates a recent update, suggesting ongoing development and maintenance.

### What is the age rating for Japan Mortgage Sim?

Japan Mortgage Sim has an age rating of 4+. This means it is suitable for users of all ages, with no content restrictions.

### Does Japan Mortgage Sim have ads?

No, Japan Mortgage Sim does not contain advertisements. The app is ad-free, providing an uninterrupted user experience for mortgage calculations.

### Can I simulate different loan scenarios with Japan Mortgage Sim?

Yes, the app allows for simulations of repayments. By entering necessary information, users can quickly check their monthly repayment amounts and plan accordingly.

### Is Japan Mortgage Sim easy to navigate?

The application features a simple and intuitive interface, making it easy to perform calculations. The screen is organized and easy to read, allowing for planning without complicated procedures.

## Version history (last 5 releases)

### 2.1.1 — 2026-03-17

Some minor improvements.

### 2.1.0 — 2025-10-21

You can now edit the default values for required fields! Give it a try in the settings screen if you are curious!

### 2.0.0 — 2025-08-26

We have made major UI changes to make the app easier to use.

Main changes:
- Menus and saved history are now displayed in a tab format
- Added support for saved history, allowing you to view calculation results directly from saved plans
- Other minor improvements

### 1.3.1 — 2025-08-13

- Fixed calculation so that interest and other values for equal principal repayments are now correct.
- Some minor tweak

### 1.3.0 — 2025-08-04

- Adjusted the layout of saved plans
- Improved internal processing

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## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*