# Working Methods, Rules, Model vs HABIT GHOST

The clearest difference is in-app purchases: HABIT GHOST at none against Working Methods, Rules, Model's 1. HABIT GHOST also leads on iOS requirement (12.0 vs 14.5). Working Methods, Rules, Model's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Working Methods, Rules, Model sells 1 one-off in-app purchase. HABIT GHOST asks for nothing beyond the download.

Working Methods, Rules, Model ships an update every 10 days, HABIT GHOST every 8 days. The most recent releases landed on May 19, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Working Methods, Rules, Model | HABIT GHOST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 10 days | **Every 8 days** |
| Size | 192 MB | 65 MB |
| Requires iOS | 14.5 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Yusuke Mori](https://appshunter.io/developer/1262722270) |

## What reviewers say

### Working Methods, Rules, Model

[App page](https://appshunter.io/ios/app/working-methods-rules-model/id1644570437)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| upgrade | $0.99 | one-time |


### HABIT GHOST

[App page](https://appshunter.io/ios/app/habit-ghost/id6630367791)

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

**In-app purchases:** none


## Frequently asked questions

### Is Working Methods, Rules, Model free?

Working Methods, Rules, Model is free to download, with in-app purchases available.

### Is HABIT GHOST free?

HABIT GHOST is free to download, with no in-app purchases.

### Do Working Methods, Rules, Model or HABIT GHOST have ads?

HABIT GHOST shows ads; Working Methods, Rules, Model does not.

### Which is updated more often, Working Methods, Rules, Model or HABIT GHOST?

Working Methods, Rules, Model ships an update every 10 days, and HABIT GHOST every 8 days. Most recently, Working Methods, Rules, Model was updated on May 19, 2026 and HABIT GHOST on September 15, 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.*