# ISO 3166 vs ISOO 2024

The clearest difference is update cadence: ISOO 2024 at every 2 days against ISO 3166's every 8 months. ISO 3166's advantage is iOS requirement (8.0 vs 12.4). 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.

ISO 3166 ships an update every 8 months, ISOO 2024 every 2 days. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ISO 3166 | ISOO 2024 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iso-3166/id298599095/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 1 MB | 36 MB |
| Requires iOS | **8.0** | 12.4 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Edwin Hou](https://appshunter.io/developer/292240393) | [Sai Goutham Murthy](https://appshunter.io/developer/1613921954) |

## What reviewers say

### ISO 3166

[App page](https://appshunter.io/ios/app/iso-3166/id298599095)

Access comprehensive ISO 3166 country code data, including alpha-2, alpha-3, and numeric codes. Sort information by country name, code type, or optionally view country names in French. This reference tool is designed for quick and easy lookup.

**Highlights:** ISO 3166 country code data, 2-letter (alpha-2) codes, 3-letter (alpha-3) codes, 3-digit numeric codes, Sort by country name, Sort by code type, Optional French country names

**Features:** macOS Compatibility

**In-app purchases:** none


### ISOO 2024

[App page](https://appshunter.io/ios/app/isoo-2024/id6738309459)

**In-app purchases:** none


## Frequently asked questions

### Is ISO 3166 free?

ISO 3166 is free to download, with no in-app purchases.

### Is ISOO 2024 free?

ISOO 2024 is free to download, with no in-app purchases.

### Do ISO 3166 or ISOO 2024 have ads?

Neither ISO 3166 nor ISOO 2024 shows ads.

### Which is updated more often, ISO 3166 or ISOO 2024?

ISO 3166 ships an update every 8 months, and ISOO 2024 every 2 days. Most recently, ISO 3166 was updated on October 20, 2026 and ISOO 2024 on October 8, 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.*