# CPS vs WolfKey

The clearest difference is update cadence: WolfKey at monthly against CPS's every 12 months. CPS's advantage is iOS requirement (11.0 vs 15.1). 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.

CPS ships an update every 12 months, WolfKey monthly. The most recent releases landed on September 11, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | CPS | WolfKey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Size | 102 MB | 38 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Canadian Paediatric Society](https://appshunter.io/developer/1463405649) | [Kevin Chung](https://appshunter.io/developer/1837310210) |

## What reviewers say

### CPS

[App page](https://appshunter.io/ios/app/cps-scp2026/id6502291016)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### WolfKey

[App page](https://appshunter.io/ios/app/wolfkey/id6751865501)

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

**In-app purchases:** none


## Frequently asked questions

### Is CPS free?

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

### Is WolfKey free?

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

### Do CPS or WolfKey have ads?

Neither CPS nor WolfKey shows ads.

### Which is updated more often, CPS or WolfKey?

CPS ships an update every 12 months, and WolfKey monthly. Most recently, CPS was updated on September 11, 2026 and WolfKey on September 7, 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.*