NISA Mirai: Savings Simulator
Japan NISA planner (Japanese)
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Plan your family's NISA savings in Japan. See how monthly investments could grow, for up to 5 family members. Note: the app is in Japanese.
Please note: the app itself is available in Japanese only.
NISA Mirai is a simple savings simulator for Japan's NISA tax-free investment accounts, including the Tsumitate (installment) account and the upcoming Children's NISA. It is useful for anyone living in Japan who can open a NISA account, including foreign residents.
- Family plan: plan for up to 5 family members and see the family total and each person's plan.
- How much will it grow? Choose a monthly amount and a number of years, and see the result split into "money you put in" and "money it grew", with a chart.
- Work back from a goal: find the monthly amount needed to reach a target, such as 20 million yen in 20 years.
- NISA allowance tracker: see how much of the 18 million yen lifetime allowance is left, and record buys and sells.
- Learn: 37 short lessons on compound interest, how NISA works, stock basics and more.
Everything you enter is stored only on your device and is never sent to a server.
Results are estimates based on a fixed rate of return. They do not guarantee future performance and are not a recommendation of any financial product. Taxes and fees are not included.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- New "How to use this screen" guide: the first time you open each screen, it shows what each button does (tap "?" to see it again)
- Results now start with a one-line summary
- Switch between low, middle and high growth right on the results screen
The developer, MASAYA FURUTA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MASAYA FURUTA
- Size
- 33.4 MB
- Category
- Finance
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 PalmTree Design株式会社