Fox Classic PRO vs 21
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fox Classic PRO
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Combine guesswork and logic to uncover hidden foxes using as few moves as possible. This game is a "sibling" to Battleship and Minesweeper, blending strategy and deduction. Practice offline with Fox Board (Classic, Chess, Foxdoku, Fox-on-paper, Fox Lite with "AI assistance"), submit your score to the leaderboard when you ready to compete online.
21
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Hit 21. Don't bust. Claim falling cards, stack smart, and clear every slot. Easy to learn, impossible to master.
Screenshots
Verdict
The clearest difference is ads: Fox Classic PRO at none against 21's shown. 21's advantage is update cadence (every 2 days vs every 12 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Fox Classic PRO ships an update every 12 months, 21 every 2 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Fox Classic PRO | 21 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Igor Patrikeev | Chee Hoong Khor |
In-app purchases
Fox Classic PRO
No in-app purchases
21
No in-app purchases
