# Project Solitaire vs Klondike King Solitaire

The clearest difference is in-app purchases: Project Solitaire at none against Klondike King Solitaire's 4. Project Solitaire also leads on ads (none vs shown). Klondike King Solitaire's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and update cadence there is nothing between them.

Both are free to download. Klondike King Solitaire sells 4 one-off in-app purchases. Project Solitaire asks for nothing beyond the download.

Project Solitaire ships an update every 9 days, Klondike King Solitaire weekly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Project Solitaire | Klondike King Solitaire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 days | **Weekly** |
| Size | 1 MB | 53 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [AYSE AKSAKAL](https://appshunter.io/developer/1810667738) | [DAMIAN HERNAN SINAY](https://appshunter.io/developer/1886611617) |

## What reviewers say

### Project Solitaire

[App page](https://appshunter.io/ios/app/project-solitaire/id6756858404)

**Features:** macOS Compatibility

**In-app purchases:** none


### Klondike King Solitaire

[App page](https://appshunter.io/ios/app/klondike-king-solitaire/id6783285613)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1200 coins | $0.99 | one-time |
| 6500 coins | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 15000 coins | $7.99 | one-time |


## Frequently asked questions

### Is Project Solitaire free?

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

### Is Klondike King Solitaire free?

Klondike King Solitaire is free to download, with in-app purchases available.

### Do Project Solitaire or Klondike King Solitaire have ads?

Klondike King Solitaire shows ads; Project Solitaire does not.

### Which is updated more often, Project Solitaire or Klondike King Solitaire?

Project Solitaire ships an update every 9 days, and Klondike King Solitaire weekly. Most recently, Project Solitaire was updated on September 30, 2026 and Klondike King Solitaire on October 11, 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.*