# Shor's algorithm vs AWS SCS

The clearest difference is update cadence: AWS SCS at every 2 weeks against Shor's algorithm's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Shor's algorithm sells 3 one-off in-app purchases and AWS SCS sells 1 in-app purchase, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

Shor's algorithm ships an update every 6 months, AWS SCS every 2 weeks. The most recent releases landed on May 19, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Shor's algorithm | AWS SCS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 7 MB | 33 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Tutorials Dojo Pte. Ltd.](https://appshunter.io/developer/1892973024) |

## What reviewers say

### 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 |


### AWS SCS

[App page](https://appshunter.io/ios/app/aws-scs-c03-dojo-exam/id6762997437)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Premium | $14.99 | per year |


## Frequently asked questions

### Is Shor's algorithm free?

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

### Is AWS SCS free?

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

### Do Shor's algorithm or AWS SCS have ads?

Neither Shor's algorithm nor AWS SCS shows ads.

### Which is updated more often, Shor's algorithm or AWS SCS?

Shor's algorithm ships an update every 6 months, and AWS SCS every 2 weeks. Most recently, Shor's algorithm was updated on May 19, 2026 and AWS SCS on September 13, 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.*