Optimise every pound you spend

Stack your cards, cashback portals and vouchers for the best return on UK transactions. No payment processing — just clear recommendations.

How It Works

Four simple steps to maximise your rewards

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Step 1
Add your cards
Link your UK credit or debit cards. We never store card numbers — only reward rates so we can calculate the best stack.
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Step 2
Search merchants
Find where you shop. See which cashback portals and voucher options apply so you know what you can stack.
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Step 3
Enter basket size
Tell us how much you plan to spend. We use this to work out your total yield and the best payment stack for that amount.
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Step 4
Get your stack
We show the best card + portal + voucher combination and an explainable total yield % so you know exactly what you’ll earn.

Built for clarity and control over your spending rewards

No card details stored
We only use reward rates to calculate stacks. Your actual card numbers never touch our systems.
Explainable yield
See a clear breakdown: card %, portal %, voucher %. No black box — you know where every % comes from.
UK-focused
Built around UK cards, TopCashback, Quidco, JamDoughnut and other portals you actually use.
Instant recommendations
Enter a basket size and get the best stack in seconds. Yield updates as you change the amount.
One best stack
We pick the top card, portal and voucher so you don’t have to compare dozens of options yourself.
Free to use
Optimise your spending with no subscription. Sign up, add cards, and start stacking.