# Dojo Kun vs PlantWatcher

The clearest difference is in-app purchases: Dojo Kun at none against PlantWatcher's 2. Dojo Kun also leads on update cadence (every 4 months vs every 13 months) and iOS requirement (10.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. PlantWatcher sells 2 in-app purchases, starting at $2.99 per month. Dojo Kun asks for nothing beyond the download.

Dojo Kun ships an update every 4 months, PlantWatcher every 13 months. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Dojo Kun | PlantWatcher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dojo-kun/id1085666288/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free | — |
| Size | 15 MB | 41 MB |
| Requires iOS | **10.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Imagine Technology AS](https://appshunter.io/developer/1085666287) | [Jesse de Jonge](https://appshunter.io/developer/1749237420) |

## What reviewers say

### Dojo Kun

[App page](https://appshunter.io/ios/app/dojo-kun/id1085666288)

Learn the five tenets of the Dojo Kun, a set of training hall rules practiced in Shotokan karate. Recite these Japanese precepts at your own pace, anytime and anywhere, to cultivate the right attitude and virtues.

**Highlights:** Learn Dojo Kun precepts, Recite in Japanese, Practice at your own pace, Study Shotokan karate rules, Accessible anywhere

**Features:** macOS Compatibility

**In-app purchases:** none


### PlantWatcher

[App page](https://appshunter.io/ios/app/plantwatcher/id6686408738)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlantWatcher Premium 1 Month | $2.99 | per month |
| PlantWatcher Premium 1 Year | $22.99 | per year |


## Frequently asked questions

### Is Dojo Kun free?

Dojo Kun is free to download, with no in-app purchases.

### Is PlantWatcher free?

PlantWatcher is free to download, with in-app purchases available.

### Do Dojo Kun or PlantWatcher have ads?

Neither Dojo Kun nor PlantWatcher shows ads.

### Which is updated more often, Dojo Kun or PlantWatcher?

Dojo Kun ships an update every 4 months, and PlantWatcher every 13 months. Most recently, Dojo Kun was updated on October 24, 2026 and PlantWatcher on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*