# Solitaire Watch vs Kon21

The clearest difference is rating: Kon21 at 5.0 against Solitaire Watch's 2.0. Kon21 also leads on update cadence (every 4 days vs every 3 weeks). Solitaire Watch's advantage is iOS requirement (12.0 vs 26.2). On price, ratings volume, 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.

Kon21 holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Solitaire Watch ships an update every 3 weeks, Kon21 every 4 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Solitaire Watch | Kon21 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (1 ratings)](https://appshunter.io/ios/app/solitaire-watch/id954158465/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kon21/id6760956783/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Free | Free |
| Size | 93 MB | 19 MB |
| Requires iOS | **12.0** | 26.2 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Autonomous](https://appshunter.io/developer/409037702) | [RetroApps LLC](https://appshunter.io/developer/1845420719) |

## What reviewers say

### Solitaire Watch

[App page](https://appshunter.io/ios/app/solitaire-watch/id954158465)

Enjoy classic Klondike solitaire on your Apple Watch and iPhone. Features quick sessions, readable cards, and smooth gameplay with daily challenges and customizable decks. Save and resume games instantly.

**Highlights:** Apple Watch and iPhone gameplay, Daily Challenge with solvable hands, Klondike in 1-card and 3-card modes, Optional Spiderette unlock, Hints, undo, auto-complete, Deck customization, Fast resume and save/restore

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Kon21

[App page](https://appshunter.io/ios/app/kon21/id6760956783)

Embark on a cosmic adventure to restore balance to chaotic zodiac realms. Battle evolving creatures using a unique blackjack-inspired card system and master the art of 21 to unleash powerful attacks. Explore pixel-crafted worlds with a retro aesthetic.

**Highlights:** Explore living zodiac realms, Conway-powered evolving creatures, Strategic blackjack-inspired combat, Master the art of 21, Retro pixel aesthetic

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Solitaire Watch free?

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

### Is Kon21 free?

Kon21 is free to download, with no in-app purchases.

### Which has better reviews, Solitaire Watch or Kon21?

Kon21 is rated higher. Solitaire Watch averages 2.0 out of 5 from 1 ratings, while Kon21 averages 5.0 from 1 ratings.

### Do Solitaire Watch or Kon21 have ads?

Neither Solitaire Watch nor Kon21 shows ads.

### Which is updated more often, Solitaire Watch or Kon21?

Solitaire Watch ships an update every 3 weeks, and Kon21 every 4 days. Most recently, Solitaire Watch was updated on October 7, 2026 and Kon21 on October 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.*