ComparaCesto — Grocery Price Comparison & Smart Shopping Platform for Portugal
Portuguese consumers are bleeding money at supermarkets without knowing it.
The Problem
Portuguese consumers are bleeding money at supermarkets without knowing it:
Reddit r/germany (Oct 2025): "Is there an app in Germany that actually compares real prices across supermarket chains? Not just flyers or promotions" — same frustration exists across Southern Europe.
Trolley.co.uk grew to millions of UK users because the same product can cost 40-60% more at one supermarket vs another.
Specific pain points:
- Price opacity: The same product (e.g., Mimosa milk 1L) can cost €0.79 at Lidl, €0.99 at Pingo Doce, and €1.19 at Continente. No easy way to compare a full basket.
- Existing apps are fragmented and limited:
- Super Save: Covers main chains but UX is basic, data can be stale.
- Preço Fresco: Good product scanning but missing Lidl and Mercadona.
- Prices Crawler: Web-based, limited product range.
- Poupar: Paid app (€5/month after trial) — price comparison behind a paywall is ironic.
- No basket-level optimization: Existing apps compare individual products but don't tell you "buy items A, B, C at Lidl and items D, E at Pingo Doce to save €12."
- Promotion tracking is manual: Consumers browse paper flyers or 5 different apps to find deals.
- No price history: Consumers can't tell if a "promotion" is genuinely cheaper than the regular price 2 weeks ago.
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