# Guess What? (Wall Lab) — Stanford University > Stanford University research study game for families to play charades and contribute to developmental delay research. (iPhone/iPad app by Dennis Wall.) - Source: https://appshunter.io/ios/app/guess-what-wall-lab/id1426891832 (this page in markdown: same URL + `.md`) - Developer: [Dennis Wall](https://appshunter.io/developer/1415212247) - Category: Education, Games, Family - Price: Free - Rating: 4.53/5 from 15 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 51 MB - Languages: English, Portuguese, Spanish - Released: 2018-08-16 - Data updated: 2026-06-20 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/guess-what-wall-lab/id1426891832/reviews.md ## What is Guess What? (Wall Lab)? This game is a research study out of Stanford University for parents of children between the ages of 1.5 and 12 years. Families who participate are helping researchers in the Wall Lab (wall-lab.stanford.edu) use machine learning and artificial intelligence to analyze behaviors expressed by children while interacting with family members via home video. Choose between numerous different decks and play this exciting charades game on your phone with your kids, and optionally, help contribute to research on developmental delay by sharing your videos with the research team. Leave us some feedback by taking our in-app survey and your suggestions may appear in future updates! Consumer Rights Notice: This application is developed and published by Stanford University's research department and is intended solely for educational and research purposes. It is provided free of charge and does not involve any commercial transactions. Accordingly, it does not fall under the 'trader' category as defined by the European Union's Digital Services Act and similar regulations. Please be aware that the consumer rights protections typically afforded to commercial transactions do not apply. If you have any questions or concerns regarding this notice, please contact us at Stanford University. ## Key features - Charades game for families - Research study for child development - Optional video contribution to research - Multiple game decks - Educational purposes ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/guess-what-wall-lab/id1426891832/reviews.md ### 2/5 — Unease of use *2020-06-08* Can’t even get past the part where I choose a password... ### 5/5 — Nice experience *2020-03-15* It is very nice app because it is important to analyze the behavior expressed by children while they are interacting with their family. so for some kind of disease or disorder it is important to do this just to clarify what should the parents do or how to deal with your children like that. so the overall experience was nice and the app is useful ### 5/5 — The best app for kid *2020-03-15* The cute app is perfect for increasing memory and vocabulary You will practice your child skills and have fun together. ## Frequently asked questions about Guess What? (Wall Lab) ### What is Guess What? (Wall Lab)? Guess What? (Wall Lab) is a research study game from Stanford University designed for families. It functions as a charades game for children aged 1.5 to 12 years and aims to help researchers analyze child behaviors. ### Is Guess What? (Wall Lab) free to play? Yes, Guess What? (Wall Lab) is provided free of charge by Stanford University's research department and does not involve any commercial transactions. ### What age group is Guess What? (Wall Lab) for? The game is intended for parents of children between the ages of 1.5 and 12 years. Its age rating is 4+. ### Can I contribute to research with Guess What? (Wall Lab)? Yes, families can optionally help contribute to research on developmental delay by sharing home videos of children interacting with family members while playing the game. ### What devices does Guess What? (Wall Lab) support? Guess What? (Wall Lab) is supported on iPhone and iPad devices. ### How often is Guess What? (Wall Lab) updated? The latest version of Guess What? (Wall Lab) is 2026.1.2, and it was last updated on February 13, 2026. This indicates a very recent update. ### Does Guess What? (Wall Lab) have ads? No, Guess What? (Wall Lab) does not contain advertisements. As a research and educational tool from Stanford University, it is ad-free. ### What is the learning methodology of Guess What? (Wall Lab)? The app's learning methodology is embedded in its gameplay, which is a charades game. This encourages interaction, communication, and observation of behaviors, aiding in developmental research. ## Version history (last 5 releases) ### 2026.1.5 — 2026-04-29 - Gameplay Insights dashboard - Quality of life fixes ### 2026.1.2 — 2026-02-13 - Quality of life fixes - Minor UI fixes ### 2026.1.01 — 2026-01-30 - Apple Sign-In ### 2025.1.01 — 2025-07-02 - Quality of life fixes ### 2025.1.00 — 2025-02-20 - Quality of life fixes - Minor UI updates - Improved alerts ## Apps similar to Guess What? 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User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-20.*