This app helps you stop overthinking by guiding you through a structured analysis of your worries and decisions. It uses evidence-based reasoning to show you the actual probabilities of your concerns, replacing feelings with clarity.
1.52
July 8, 2026
Bug fixes
6 month subscription
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Theo helps by guiding you to journal your worries and then uses evidence-based reasoning to calculate the actual probabilities of your concerns. This process helps replace anxious feelings with clear, data-driven insights.
Theo Plus is a subscription that unlocks unlimited analyses, detailed reasoning breakdowns, and interactive what-if exploration features. It allows for deeper thinking about all your concerns.
Theo Plus offers several subscription plans: a monthly plan for $9.99, a 3-month plan for $12.99, and two semiannual plans for $39.99 and $59.99. These provide access to premium features.
Yes, Theo contains advertisements. While the core journaling and analysis features are available for free, users may encounter ads within the application.
Currently, Theo is supported on iPhones. The app is designed to be accessible on iOS devices for users seeking to manage overthinking.
The latest version of Theo is 1.51, and it was last updated on June 22, 2026. Updates typically bring improvements and new features to enhance the user experience.
Theo has an age rating of 9+. This indicates that the content is generally suitable for children aged 9 and older, with parental guidance recommended for younger users.
Theo utilizes Bayesian reasoning, a framework used by professionals for decision-making under uncertainty. It helps by systematically weighing evidence for and against your worries to arrive at more objective probabilities.