Observed arrival · 2026-10-09
Poikatsu Soroban, a Japanese household-points calculator
It compares estimated annual points across Japanese credit-card, investment-contribution, and mobile-plan combinations, using both household examples and a personal calculator.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese households comparing annual points ecosystems
- Worth noticing
- It keeps airline miles outside yen totals and flags assumptions that could not be confirmed against official sources.
Field notes
The model table covers single-person households, a dual-income family with children, and a homeowner with a car, each in standard and savings-oriented versions. Its calculation includes card rewards, investment-contribution points, annual fees, and mobile costs; the displayed results are for year two onward. The site gives a data date and says it records sources and flags assumptions it could not verify.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue