About
This habit tracker uses a philosophical concept to help you rebuild yourself daily. Each completed habit replaces a plank, symbolizing personal growth. The app encourages continuous self-improvement by allowing you to start new journeys after completing one.
What's New in Theseus
1.0
July 20, 2026
Subscriptions & In-App Purchases
$2.99
A fresh plank
A small tip — one plank toward the work.
Developer apps
FAQ
What is the core concept behind Theseus: Plank by Plank?
Theseus: Plank by Plank is built on the 2,000-year-old thought experiment of Theseus's Ship. It uses the idea of replacing each plank of a ship over time to represent rebuilding yourself through daily habits.
How does Theseus: Plank by Plank handle missed days?
If you miss a day, nothing is lost. The ship never rots; it simply waits for you to continue. This approach encourages consistency without the pressure of perfection.
What happens when I complete a habit journey in Theseus: Plank by Plank?
When you reach the halfway mark, the app prompts you with a philosophical question. Upon laying the last plank, your ship sails into your 'Harbor' with a name and date, allowing you to start a new journey.
Is Theseus: Plank by Plank available on multiple devices?
Yes, Theseus: Plank by Plank is supported on Mac, iPhone, iPad, and Apple Vision Pro devices, offering a consistent experience across your Apple ecosystem.
What is the update frequency for Theseus: Plank by Plank?
The app was last updated on July 20, 2026, indicating recent development. While specific update frequency isn't detailed, the latest version is 1.0.
What is the age rating for Theseus: Plank by Plank?
Theseus: Plank by Plank has an age rating of 4+, making it suitable for a wide range of users interested in personal development.
Does Theseus: Plank by Plank have ads?
No, Theseus: Plank by Plank does not contain advertisements, providing an uninterrupted user experience focused on habit tracking.
What are the in-app purchase options for Theseus: Plank by Plank?
While the app is free to download and use, it does offer in-app purchases. Specific details on what these purchases unlock are not provided in the description.