# KAIZEN vs System Zero

The clearest difference is ads: KAIZEN at none against System Zero's shown. System Zero's advantage is update cadence (weekly vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. KAIZEN sells 3 in-app purchases, starting at $4.99 per month and System Zero sells 3 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

KAIZEN ships an update every 2 weeks, System Zero weekly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | KAIZEN | System Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (21 ratings)](https://appshunter.io/ios/app/kaizen-habit-challenges/id6751854065/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 86 MB | 65 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kaizenworks LLC](https://appshunter.io/developer/1837208974) | [Abdelrahman Mohammed](https://appshunter.io/developer/1679252760) |

## What reviewers say

### KAIZEN

[App page](https://appshunter.io/ios/app/kaizen-habit-challenges/id6751854065)

This app guides personal growth by breaking down big goals into small, consistent daily actions. It offers personalized routines, community-shared journeys, and a motivation system to help users build lasting habits and achieve their aspirations.

**Highlights:** Personalized growth routines, Progressive difficulty adjustment, Community and expert routines, Motivation system (leaderboard, streaks), Habit stacking, Goal setting across various life areas

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal+ | $4.99 | per month |
| Personal+ | $47.99 | per year |
| Personal+ (Lifetime) | $59.99 | one-time |


### System Zero

[App page](https://appshunter.io/ios/app/system-zero-self-improvement/id6778561681)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| System Zero Pro - Monthly | $12.99 | per month |
| System Zero Pro - Yearly | $59.99 | per year |
| System Zero Pro - Yearly | $59.99 | per year |


## Frequently asked questions

### Is KAIZEN free?

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

### Is System Zero free?

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

### Do KAIZEN or System Zero have ads?

System Zero shows ads; KAIZEN does not.

### Which is updated more often, KAIZEN or System Zero?

KAIZEN ships an update every 2 weeks, and System Zero weekly. Most recently, KAIZEN was updated on October 24, 2026 and System Zero on October 18, 2026.

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