I built a tool to solve the "which cashback card do I use here?" problem. Would this be useful to you?

I hold four cashback cards and I still get it wrong at the checkout. Different caps, different merchant categories, different reset dates. By the time I've thought it through, I've either held up the queue or just tapped whatever card was on top.

I'm building CashBack Caddy, a Singapore app that tells you which card to tap at the moment of payment, based on your current caps and promos. No manual tracking, no spreadsheets.

Two questions for the community:

How do you currently decide which card to use at checkout?
Would an app like this actually change your behaviour, or do you think you'd just go back to muscle memory?

Waitlist is open if you want to follow along: www.cashbackcaddy.com

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Thomas

7d ago

Interesting idea tools that remove small decision friction usually get adopted fast, especially with frequent spend categories like food or fuel. It reminds me how optimization isn’t just for finances; even mobile gaming communities look for similar efficiency gains. For example, while trying older builds like Ludo Master APK, people often tweak performance to avoid lag or overheating. I came across a breakdown on that here: https://xarenas.com it shows how users think about maximizing outcomes with limited resources. Your tool feels like the financial version of that mindset, which could resonate well if kept simple and fast to use.

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