Partner Challenge Rules

Effective date: 13 September 2026

Some restaurants run challenges in Stack Drop, published by SUMAR_TECH. These rules apply to every partner challenge. The restaurant running a challenge (the "restaurant") provides its rewards.

Taking part

• Free to play. No purchase or payment is needed to play a challenge, and tries can't be bought.
• Challenges appear only after you open that restaurant's link or scan its QR code.
• Each device gets a limited number of tries per day, shown in the app. Tries reset at midnight in the restaurant's time zone.
• Challenges are games of skill: rewards depend only on how high you stack. There is no chance-based draw.

Winning

• Each challenge has levels, each with a target height and a reward. One run wins at most one reward: the highest level it reaches.
• Each reward can be won once per player per day, and each restaurant sets a daily limit per reward. When that's reached, the reward shows "Gone for today".
• A weekly prize may go to the highest verified score of the week, if it meets the minimum shown in the app.
• Every run is checked by replaying it on the server. Runs that fail the check, or that involve cheating, modified apps or automated play, don't count, and any reward from them may be cancelled.

Using rewards

• Rewards are redeemed only at the restaurant that ran the challenge, with any order, and only while the ticket is valid.
• Rewards marked "with this order" can be used right away, for a few hours.
• Rewards marked "next visit" must be saved to your loyalty card with that restaurant (on wapas.me), are valid from the next day, and expire on the date shown on the ticket.
• Each ticket works once. Rewards have no cash value and can't be exchanged or transferred.

General

• The restaurant may change, pause or end a challenge at any time. Tickets already issued stay valid until their expiry date.
• Google is not a sponsor of, and is not involved in, these challenges.
• See the privacy policy for how challenge data is handled.

Contact

Questions about a reward: ask the restaurant. Questions about the game: email sumartechcorp@gmail.com.