Cross Word ZERO vs Simple Puzzle 9×9
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Cross Word ZERO
This free crossword puzzle app is perfect for studying Japanese. It offers helpful features like automatic input focus, error highlighting in red, and automatic saving to enhance your puzzle-solving experience.
- Free crossword puzzles
- Ideal for Japanese study
- Automatic input focus
- Mistakes displayed in red
- Automatic save function
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"Crossword ZERO" is a free crossword application! Ideal for studying Japanese! ■ Convenient functions Automatic focus of input location Display mistakes in red Automatic save
Simple Puzzle 9×9
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Simple Puzzle 9×9 – Train your brain with clarity Looking for a relaxing yet stimulating puzzle game? Simple Puzzle 9×9 offers a clean, minimalist design with a large, easy-to-read interface, perfect for all ages. (Made for my elderly father’s brain training. Best experienced on iPad with its larger, easy-to-see screen) Features 9×9 classic number logic puzzle Large, high-contrast screen for easy visibility Minimalist and distraction-free design Great for daily brain training and cognitive support Lightweight app with smooth performance Banner ads only, no intrusive full-screen ads Why Simple Puzzle 9×9? This app is designed for everyone—from beginners to seniors—who want to enjoy a simple puzzle experience without complicated menus or overwhelming options. It’s perfect for keeping your mind active, improving focus, and supporting cognitive health. Download now and make Simple Puzzle 9×9 part of your daily brain exercise! Made in Japan with simplicity and care.
Screenshots
Verdict
The clearest difference is iOS requirement: Cross Word ZERO at 13.0 against Simple Puzzle 9×9's 18.5. On price, update cadence, ads and in-app purchases 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.
Cross Word ZERO ships an update fortnightly, Simple Puzzle 9×9 every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | Cross Word ZERO | Simple Puzzle 9×9 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews | — |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Free with ads | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 158 MB | 9 MB |
| Age rating | 4+ | 12+ |
| Developer | RELEASE BASE, K.K. | AKIRA SASAKI |
In-app purchases
Cross Word ZERO
No in-app purchases
Simple Puzzle 9×9
No in-app purchases
Questions
Is Cross Word ZERO free?
Is Simple Puzzle 9×9 free?
Do Cross Word ZERO or Simple Puzzle 9×9 have ads?
Which is updated more often, Cross Word ZERO or Simple Puzzle 9×9?
Other comparisons
