# Theseus: Plank by Plank

> Theseus: Plank by Plank (iPhone/iPad app by Hessam Zahedi.)

- Source: https://appshunter.io/ios/app/theseus-plank-by-plank/id6788914662 (this page in markdown: same URL + `.md`)
- Developer: [Hessam Zahedi](https://appshunter.io/developer/6785146214)
- Category: Lifestyle, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English
- Released: 2026-07-16
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/theseus-plank-by-plank/id6788914662/reviews.md

## What is Theseus?

Rebuild yourself, one plank a day.

Theseus is a habit tracker built on a 2,000-year-old thought experiment. Athens kept the ship of the hero Theseus for centuries, lifting out each plank as it rotted and fastening new timber in its place — until not one original board remained. Was it still the same ship?

Your ship works the same way. Every perfect day — every habit kept — replaces one plank, from the keel up. Miss a day and nothing is lost; the ship never rots, she only waits. At the halfway mark she asks you the philosophers' question, and when the last plank is laid she sails into your Harbor with a name and a date — and you lay a new keel.

(…then THE VOYAGE / THE SHIPYARD / THE TELLING / THE HARBOR / MADE WITH CARE feature sections — full text in the file.)

Keep the ship. Become someone new.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| A fresh plank | $2.99 | one-time |
| A new keel | $14.99 | one-time |
| A bolt of sail | $6.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-20

No release notes.

## More apps by Hessam Zahedi

- [Wickly: Candle Tracker](https://appshunter.io/ios/app/wickly-candle-tracker/id6785146212)
- [Liminal: The Atrium](https://appshunter.io/ios/app/liminal-the-atrium/id6787131819)
- [Need a List](https://appshunter.io/ios/app/need-a-list/id6788158149)
- [Futures Study](https://appshunter.io/ios/app/futures-study/id6788912818)
- [Ulysses](https://appshunter.io/ios/app/ulysses/id6789352921)

All apps by Hessam Zahedi: https://appshunter.io/developer/6785146214

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*