# DifCal vs Ligand Viewer

The clearest difference is iOS requirement: DifCal at 12.0 against Ligand Viewer's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | DifCal | Ligand Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sean Brennan](https://appshunter.io/developer/898026482) | [George Tevosov](https://appshunter.io/developer/1748576217) |

## What reviewers say

### DifCal

[App page](https://appshunter.io/ios/app/difcal/id898026479)

**Features:** Vision Pro support

**In-app purchases:** none


### Ligand Viewer

[App page](https://appshunter.io/ios/app/ligand-viewer/id6444081696)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DifCal free?

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

### Is Ligand Viewer free?

Ligand Viewer is free to download, with no in-app purchases.

### Do DifCal or Ligand Viewer have ads?

Neither DifCal nor Ligand Viewer shows ads.

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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.*