# WOLF vs EST

The clearest difference is iOS requirement: WOLF at 6.0 against EST's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 28, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | WOLF | EST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 2 MB | 7 MB |
| Requires iOS | **6.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [剑 熊](https://appshunter.io/developer/820792877) | [EuroICC d.o.o.](https://appshunter.io/developer/1362060463) |

## What reviewers say

### WOLF

[App page](https://appshunter.io/ios/app/wolf-guard/id930801523)

**Features:** macOS Compatibility

**In-app purchases:** none


### EST

[App page](https://appshunter.io/ios/app/est-100/id1441017861)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WOLF free?

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

### Is EST free?

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

### Do WOLF or EST have ads?

Neither WOLF nor EST shows ads.

### Which is updated more often, WOLF or EST?

WOLF ships an update every 3 months, and EST every 3 months. Most recently, WOLF was updated on September 28, 2026 and EST on October 4, 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.*