# Computed Tomography vs First FRCR

The clearest difference is in-app purchases: Computed Tomography at none against First FRCR's 1. First FRCR's advantage is update cadence (every 6 weeks vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. First FRCR sells 1 in-app purchase, starting at $8.99 per month. Computed Tomography asks for nothing beyond the download.

Computed Tomography ships an update every 12 months, First FRCR every 6 weeks. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Computed Tomography | First FRCR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Size | 67 MB | 34 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Carl Zeiss AG](https://appshunter.io/developer/488066215) | [martin schranz](https://appshunter.io/developer/1088326022) |

## What reviewers say

### Computed Tomography

[App page](https://appshunter.io/ios/app/computed-tomography/id1300055902)

**In-app purchases:** none


### First FRCR

[App page](https://appshunter.io/ios/app/first-frcr-physics/id6743234681)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $8.99 | per month |


## Frequently asked questions

### Is Computed Tomography free?

Computed Tomography is free to download, with no in-app purchases.

### Is First FRCR free?

First FRCR is free to download, with in-app purchases available.

### Do Computed Tomography or First FRCR have ads?

Neither Computed Tomography nor First FRCR shows ads.

### Which is updated more often, Computed Tomography or First FRCR?

Computed Tomography ships an update every 12 months, and First FRCR every 6 weeks. Most recently, Computed Tomography was updated on October 14, 2026 and First FRCR on October 3, 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.*