# Chlorophyll Role vs Shor's algorithm

The clearest difference is price: Shor's algorithm at Free against Chlorophyll Role's $1.99. Shor's algorithm also leads on update cadence (every 6 months vs every 18 months). Chlorophyll Role's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 16.0). On ads and device support there is nothing between them.

Shor's algorithm is free to download; Chlorophyll Role costs $1.99 up front. Shor's algorithm sells 3 one-off in-app purchases. Chlorophyll Role asks for nothing beyond the download.

Chlorophyll Role ships an update every 18 months, Shor's algorithm every 6 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Chlorophyll Role | Shor's algorithm |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 months** |
| Size | 278 MB | 7 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VIRTUAL FILAMENTS PRIVATE LIMITED](https://appshunter.io/developer/1474217212) | [Sungjun Kim](https://appshunter.io/developer/1602461985) |

## What reviewers say

### Chlorophyll Role

[App page](https://appshunter.io/ios/app/chlorophyll-role-edutech-era/id1661411132)

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

**In-app purchases:** none


### Shor's algorithm

[App page](https://appshunter.io/ios/app/shors-algorithm/id6472044082)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| coffee | $0.99 | one-time |
| latte | $4.99 | one-time |
| whopper set | $9.99 | one-time |


## Frequently asked questions

### Is Chlorophyll Role free?

Chlorophyll Role costs $1.99, with no in-app purchases.

### Is Shor's algorithm free?

Shor's algorithm is free to download, with in-app purchases available.

### Do Chlorophyll Role or Shor's algorithm have ads?

Neither Chlorophyll Role nor Shor's algorithm shows ads.

### Which is updated more often, Chlorophyll Role or Shor's algorithm?

Chlorophyll Role ships an update every 18 months, and Shor's algorithm every 6 months. Most recently, Chlorophyll Role was updated on October 3, 2026 and Shor's algorithm on October 10, 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.*