Cashback app vs neutral price comparison: which saves more on shopping?

Updated regularly. Cashback sounds like money back, but on groceries it is usually a very small amount. The loyalty programmes of Migros (Cumulus) and Coop (Supercard) give around 1 percent back inside their own chain. A neutral price comparison, by contrast, works on the base price and saves across all chains. The difference is bigger than it sounds.

Rappn is the only neutral grocery price comparison app in Switzerland, with no commercial agreement with any retailer. Migros, Coop, Aldi, Lidl, Denner, Aligro and Otto's do not pay us to rank them, and nothing below is sponsored.

Cashback or price comparison, which saves more on shopping?

Work it out. Cumulus (Migros) gives 1 point per franc, and 500 points become a CHF 5 voucher, that is around 1 percent, redeemable only at Migros. Supercard (Coop) works practically the same: 1 Superpunkt per franc, around 1 percent, only in the Coop world. Outside the own chain the value drops to about 0.33 percent. It is free to collect, but it is brand-locked: the voucher only counts where you collected it. A neutral price comparison works differently: it lowers the base price you pay in the first place, across all chains. Kassensturz and K-Tipp show that switching from name brands to budget own-brands saves 30 to 50 percent on the affected items, a multiple of 1 percent cashback.

Why you can use both, but one saves more

Loyalty points are free, so collect them if you shop in a chain anyway. But they are no reason to organise your shopping around one chain, because 1 percent cashback rarely matches a cheaper base price at another chain. A caution on advertising: standalone cashback apps that promise money for scanning receipts are barely relevant for groceries in Switzerland; the well-known ones come from Germany or Austria and cover their chains. The reliable lever remains the base price.

One genuinely Swiss option is Poinz, a stamp-card and cashback app offered as part of Worldline Switzerland's merchant solutions. It bundles digital stamp cards at over 1,000 local partner locations and pays cashback via linked cards or partner online shops. Migros, Coop, Aldi, Lidl and Denner are not among its partners, so your weekly grocery run earns no cashback there. The app is worth having for the bakery or the takeaway, but it does not lower the base price at the supermarket.

How to combine both levers in the same shop

You do not have to choose between cashback and price comparison, you can use both in the same shop. Let the neutral price comparison decide where you shop and which product goes into the basket, then collect the loyalty points at that same till. The comparison makes the decision, and the roughly 1 percent in points is the small bonus you take anyway.

The order matters: price first, points second. Whoever looks at the loyalty card first ends up in a chain just because their card is there, and pays more on the base price. Whoever instead compares the basket across chains first and picks the budget own-brand saves 30 to 50 percent on the affected items. The points then come on top, without you changing anything. You would have earned the same voucher shopping more expensively, but the whole shop would have cost more. So the two levers do not contradict each other, they fit together.

In three steps:

1. Compare your weekly basket across the chains, for example in the Rappn app.
2. Pick the cheapest chain and, on the spot, the budget own-brand that suits you.
3. At that chain's till, scan your loyalty card so the points are added.

That way the base price stays the lever that really counts, and the points are the extra that costs you nothing and needs no separate decision.

In the Rappn app you see live where your basket is cheapest across all chains, which beats 1 percent cashback almost every time. The loyalty programmes themselves are compared in Cumulus vs Supercard, and how to measure your spending at all in the 30-day self-test.