# Iron Index vs Chronverter

The clearest difference is in-app purchases: Chronverter at none against Iron Index's 1. Iron Index's advantage is iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Iron Index sells 1 one-off in-app purchase. Chronverter asks for nothing beyond the download.

## The numbers

| Metric | Iron Index | Chronverter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 45 MB | 4 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Dylan Burrough](https://appshunter.io/developer/1873824273) | [Arthur Christopher Belmonte](https://appshunter.io/developer/1552997792) |

## What reviewers say

### Iron Index

[App page](https://appshunter.io/ios/app/iron-index/id6759079356)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Iron Index Pro - Lifetime Access | $19.99 | one-time |


### Chronverter

[App page](https://appshunter.io/ios/app/chronverter/id6759367291)

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

**In-app purchases:** none


## Frequently asked questions

### Is Iron Index free?

Iron Index is free to download, with in-app purchases available.

### Is Chronverter free?

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

### Do Iron Index or Chronverter have ads?

Neither Iron Index nor Chronverter shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*