problem 1
rule drift
indian issuers change card rules ~1.5 times a month. the smartbuy 10x window, the atlas miles cap, the infinia annual fee — all moved in the past 18 months. most tools score against today's rules. we score against the rule in force the day you swiped.
12 RULE-CHANGES TRACKED · LAST 18M
problem 2
temporal correctness
when smartbuy 10x got capped at ₹15k on 01 jun, your may transactions kept their old (better) reward math. we keep the calendar straight. so what was true on jan 14 stays true for that swipe — forever.
EVERY TXN SCORED AGAINST ITS DATE
problem 3
honest range
one axis edge mile is not "₹0.40." it's ₹0.40–₹3.10, depending on what you redeem for. single-peg valuations lie. we show the range and the path that reaches the upper end of it.
RANGE > PEG · ALWAYS
problem 4
portfolio-aware redemption
the right card for one user is the wrong card for another. your three-card portfolio + your spending pattern + your existing miles pool → the optimal redemption path is specific to you, not to the comparison site's SEO target.
YOUR WALLET · YOUR PATH