📈Last 7 days+2 installs — 50% slower than the week before (+4) · 0/day since Oct 9
🏆Among Tools apps bottom 23% by installs gained this week (914 peers growing)
🛠Updatesactively updated · updated 16 days ago · every ~42 days (2 updates tracked)
Installs since launch
+6 installs
since Oct 9
Update history
1.0.15Oct 25, 2026 · seen Nov 4, 2026
• Added iDeCo age 60+ payout tax calculation (lump sum, annuity, split)<br>• Full input persistence: your simulation inputs are now saved across sessions<br>• Multi-screen CSV export: export FIRE and iDeCo projections to Excel<br>• Inflation-adjusted FIRE simulator with 5-rate withdrawal sensitivity matrix<br>• Tap-to-type numeric keypad input on all sliders<br>• Credit card investment point prese
1.0.9Sep 14, 2026 · seen Oct 25, 2026
• NEW: 3-Scenario Comparison Matrix (Conservative 3%, Balanced 5%, Aggressive 8%)<br>• NEW: Age-to-FIRE Reverse Target Calculator (Calculate required monthly savings)<br>• NEW: iDeCo Statutory Salary Deductions & Marginal Tax Bracket Waterfall<br>• NEW: Excel-Compatible CSV Export with UTF-8 BOM & Native System Sharing<br>• NEW: Dual Concentric Quota Progress Rings & Smooth Number Roll
NISA Calculator: Japan is a tools app by shuttletechnologies with 5+ downloads (about 7 estimated). +2 installs in the last 7 days. Released Sep 13, 2026. Install growth, rank history, SDKs and ad networks.
From the store listing: “Japan NISA, iDeCo, investment, tax savings, retirement and FIRE calculators.”
