Privacy

Games that run in your browser

The Schulte table, Stroop test and Tower of Hanoi run entirely in your browser. Your times and best scores are saved in your browser's local storage, on your device only. Nothing is sent to a server. There are no accounts.

20 Questions and AI models

In 20 Questions, the questions and answers you type in that game are sent through our server to an AI model so it can reply. We use DeepSeek (DeepSeek-V4.1-Flash, run by DeepSeek in China) first. If it's unavailable we use an OpenAI model (GPT-4.1 mini or GPT-4o mini) through the AIsa API service.

We don't keep your game messages after the reply is sent and we don't use them to train anything. The AI providers handle the text under their own privacy policies. Please don't type names, contact details or anything private into the game.

Our server sees your IP address for each request and uses it only to limit how often one visitor can call the AI, so the game can't be abused. We don't store it.

Analytics

We use Google Analytics to see which pages get used. It only loads after you press "Allow analytics". Your choice is kept in your browser's local storage; clear site data to change it.

Ads

Ads run inside their own sandboxed frames, so they can't read this page. Ad networks may use cookies; see their own privacy policies.

Contact

hello@brain-games.io