Devine le prix
Devine le prix lets you guess the price of one real supermarket product at a time using a sliding ruler; five products per day, closest guesses score points and the ticket resets daily.
Play Devine le prixA fresh puzzle is waiting for you.
Devine le prix is a daily French browser game that shows five real products found in French stores with a photo, brand, quantity and retailer. For each product you drag a sliding ruler to the price you think is correct and validate; the actual price then appears and you receive up to 100 points per product based on accuracy. The game runs in the browser and stores your scores locally without an account.
Prices displayed in the game come from Open Prices, the price-collection project of Open Food Facts, under the ODbL license, while product names and photos come from Open Food Facts and related open databases. The game covers over twenty retailers including Carrefour, E.Leclerc, Lidl, Auchan and non-food chains such as Ikea or Decathlon. One ticket is available each day and you can review tickets from the past week via the history feature.
How to play Devine le prix
- Open the game in your browser; ensure JavaScript is enabled so the sliding ruler appears.
- A product is shown with a photo, brand, quantity and retailer.
- Drag the sliding ruler to the price you believe matches the product and release it.
- Click validate to lock in your guess and reveal the actual recorded price.
- See a stamp fall on your ticket and receive up to 100 points for the item based on your accuracy.
- Repeat for the five daily products to complete your ticket and view your total score.
Tips for Devine le prix
- Look closely at the quantity and unit on the product label before placing your guess; prices are tied to the displayed quantity.
- Note the retailer shown because the same product can vary significantly between chains.
- Aim for within 2 percent of the recorded price to score the full 100 points for an item.
- If the ruler feels imprecise, take small adjustments near plausible price ranges rather than wide sweeps.
Devine le prix FAQ
What is Devine le prix?
Devine le prix is a daily browser game where you guess the price of five real products found in French stores; you use a sliding ruler to pick a price then validate to reveal the recorded price and earn points. Each day presents five different items shown with a photo, brand, quantity and retailer, and the game stores your ticket locally in the browser.
Is Devine le prix free to play?
Yes, Devine le prix is free to play and does not require an account. The site states the game is free, has no registration and contains no advertisements, and your streaks, scores and loyalty card data are kept locally in your browser.
How many guesses do I get?
You get one guess per product and five products per day, forming a single daily ticket. The game allows one ticket each day similar to other daily puzzles, and each item yields up to 100 points for a maximum possible daily score of 500 points.
When does the new puzzle come out?
A new set of five products is available once per day, giving one fresh ticket each day. The game describes itself as a daily game and limits players to a single ticket per day while preserving recent tickets in the history for review.
Can I play past puzzles?
Yes, you can review and replay tickets from the previous week using the history feature. The site specifies you may replay tickets of the week just passed from the historical view, so past daily items are accessible for a limited time.
How are points calculated?
Points are computed from the relative difference between your guessed price and the recorded price, with under 2 percent difference awarding the full 100 points. The score then drops quickly as the error increases, reaching zero at about a 60 percent difference according to the published rules.
Where do the product prices come from?
Product prices come from Open Prices, the price-collection project of Open Food Facts, and contributors record real in-store prices across French retailers under the ODbL license. Product names and photos are sourced from Open Food Facts, Open Products Facts and Open Beauty Facts and reused under their licenses.
Can I share my results?
Yes, you can share your ticket or grid after completing the daily set of products. The game explicitly mentions a share option so players can post or show their completed ticket after playing.
