# Working Methods, Rules, Model vs Decision Choice

The clearest difference is in-app purchases: Decision Choice at none against Working Methods, Rules, Model's 1. Working Methods, Rules, Model's advantage is update cadence (every 10 days vs every 5 weeks) and iOS requirement (14.5 vs 17.0). On price, ads and device support there is nothing between them.

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

Working Methods, Rules, Model ships an update every 10 days, Decision Choice every 5 weeks. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Working Methods, Rules, Model | Decision Choice |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Size | 192 MB | 21 MB |
| Requires iOS | **14.5** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Man Hung Sun](https://appshunter.io/developer/1471605573) | [Takatoshi Ichige](https://appshunter.io/developer/1717609832) |

## 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 |


### Decision Choice

[App page](https://appshunter.io/ios/app/decision-choice-decide-now/id6670438371)

**Features:** macOS Compatibility

**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 Decision Choice free?

Decision Choice is free to download, with no in-app purchases.

### Do Working Methods, Rules, Model or Decision Choice have ads?

Neither Working Methods, Rules, Model nor Decision Choice shows ads.

### Which is updated more often, Working Methods, Rules, Model or Decision Choice?

Working Methods, Rules, Model ships an update every 10 days, and Decision Choice every 5 weeks. Most recently, Working Methods, Rules, Model was updated on October 7, 2026 and Decision Choice on September 28, 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.*