# Solitaire Whizz vs Protocol 4

The clearest difference is price: Protocol 4 at Free against Solitaire Whizz's $2.99. Solitaire Whizz's advantage is in-app purchases (none vs 7) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Protocol 4 is free to download; Solitaire Whizz costs $2.99 up front. Protocol 4 sells 7 one-off in-app purchases. Solitaire Whizz asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Solitaire Whizz | Protocol 4 |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.1 (10 ratings)](https://appshunter.io/ios/app/solitaire-whizz/id630340539/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | — |
| Size | 52 MB | 12 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Neil Coffey](https://appshunter.io/developer/462837828) | [HAKAN OZGER](https://appshunter.io/developer/1855495033) |

## What reviewers say

### Solitaire Whizz

[App page](https://appshunter.io/ios/app/solitaire-whizz/id630340539)

This comprehensive card game collection offers 40 different solitaire variations in a single app. Enjoy classic and challenging games with high-quality graphics, helpful hints, and auto-completion features. No additional purchases are required to access all content.

**Highlights:** 40 solitaire game variations, High-quality retina graphics, Turn tips and auto-complete, Scrolling and zooming, Sound effects and animation, No hidden extra purchases

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

**In-app purchases:** none


### Protocol 4

[App page](https://appshunter.io/ios/app/protocol-4-code-breaker-pvp/id6755742805)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pocket Change | $0.99 | one-time |
| Starter Kit | $1.99 | one-time |
| Agent License | $2.99 | one-time |
| Hacker's Stash | $4.99 | one-time |
| Pro Kit | $4.99 | one-time |
| Trust Fund | $9.99 | one-time |
| Master Kit | $9.99 | one-time |


## Frequently asked questions

### Is Solitaire Whizz free?

Solitaire Whizz costs $2.99, with no in-app purchases.

### Is Protocol 4 free?

Protocol 4 is free to download, with in-app purchases available.

### Do Solitaire Whizz or Protocol 4 have ads?

Protocol 4 shows ads; Solitaire Whizz does not.

### Which is updated more often, Solitaire Whizz or Protocol 4?

Solitaire Whizz ships an update every 3 months, and Protocol 4 every 3 months. Most recently, Solitaire Whizz was updated on October 3, 2026 and Protocol 4 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.*