# Shor's algorithm vs Quantum Computing

The clearest difference is update cadence: Quantum Computing at daily against Shor's algorithm's every 6 months. Quantum Computing also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Shor's algorithm sells 3 one-off in-app purchases and Quantum Computing sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Shor's algorithm ships an update every 6 months, Quantum Computing daily. The most recent releases landed on May 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Shor's algorithm | Quantum Computing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Size | 7 MB | 2 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Sungjun Kim](https://appshunter.io/developer/1602461985) | [Everyware Apps](https://appshunter.io/developer/718530491) |

## 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 |


### Quantum Computing

[App page](https://appshunter.io/ios/app/quantum-computing/id6523414226)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium features | $3.99 | one-time |


## Frequently asked questions

### Is Shor's algorithm free?

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

### Is Quantum Computing free?

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

### Do Shor's algorithm or Quantum Computing have ads?

Neither Shor's algorithm nor Quantum Computing shows ads.

### Which is updated more often, Shor's algorithm or Quantum Computing?

Shor's algorithm ships an update every 6 months, and Quantum Computing daily. Most recently, Shor's algorithm was updated on May 19, 2026 and Quantum Computing on September 12, 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.*