# Zephyr Digital vs IIAS

The clearest difference is update cadence: IIAS at every 2 months against Zephyr Digital's every 39 months. 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.

Zephyr Digital ships an update every 39 months, IIAS every 2 months. Both last shipped on October 9, 2026.

## The numbers

| Metric | Zephyr Digital | IIAS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Size | 67 MB | 56 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MashupTech](https://appshunter.io/developer/1561008509) | [Abdul Rafeeque Parakkal](https://appshunter.io/developer/1464562964) |

## What reviewers say

### Zephyr Digital

[App page](https://appshunter.io/ios/app/zephyr-digital/id6443472547)

**Features:** macOS Compatibility

**In-app purchases:** none


### IIAS

[App page](https://appshunter.io/ios/app/iias/id6738781041)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Zephyr Digital free?

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

### Is IIAS free?

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

### Do Zephyr Digital or IIAS have ads?

Neither Zephyr Digital nor IIAS shows ads.

### Which is updated more often, Zephyr Digital or IIAS?

Zephyr Digital ships an update every 39 months, and IIAS every 2 months. Most recently, Zephyr Digital was updated on October 9, 2026 and IIAS on October 9, 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.*