Decrypto vs GMG Earth Matters
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Decrypto
Engage in a captivating puzzle game where you decode classic ciphers and solve cryptogram word puzzles. This app offers a challenging yet accessible experience for those who enjoy riddles and code-breaking. It's designed for curious minds to train their brains with pure, ad-free fun.
- Decode classic ciphers
- Solve cryptogram word puzzles
- Break challenging codes
- Brain training
- VoiceOver support
- Ad-free gameplay
Read full descriptionHide full description
Decode classic ciphers, solve cryptogram word puzzles, break challenging codes, and train your brain in Decrypto, the puzzle game for the curious mind. If you love riddles, crosswords, or old-school cypher code-breaking, Decrypto will put your mind to the test. Decrypto is designed to be accessible, with full support for VoiceOver so more players can experience the thrill of codebreaking without barriers. Play for free with no ads, just pure puzzles and brain-teasing fun.
GMG Earth Matters
Solve environmental puzzles by combining elemental forces to combat pollution across the globe and beyond. Progress through numerous levels and unlock achievements in this engaging educational game.
- Combine elements to solve puzzles
- Fight pollution across 7 continents
- 135 challenging levels
- Earn 28 achievements
- In-game tutorial
Read full descriptionHide full description
Help clean up pollution in our environment by playing Earth Matters. Combine Air, Earth, Fire and Water Elementals to trigger reactions that enable you to solve puzzles. - Fight pollution across 7 continents and outer space - 135 levels to play - 28 achievements to earn - Complete in-game tutorial
Screenshots
Verdict
The clearest difference is update cadence: Decrypto at every 4 days against GMG Earth Matters's every 6 months. Decrypto also leads on ratings volume (124 vs 1). GMG Earth Matters's advantage is rating (5.0 vs 4.8) and review sentiment (100% vs 85%). On price, ads, in-app purchases and monetization model 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. Decrypto sells 8 one-off in-app purchases and GMG Earth Matters sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
GMG Earth Matters holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Decrypto has 124 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Decrypto's written reviews are positive against 100% of GMG Earth Matters's.
Decrypto ships an update every 4 days, GMG Earth Matters every 6 months. The most recent releases landed on October 29, 2026 and October 6, 2026 respectively.
| Parameter | Decrypto | GMG Earth Matters |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (124 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 85.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 124 — better | 1 |
| Update frequency | Every 4 days — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 93 MB |
| Age rating | 4+ | 9+ |
| Developer | Incognitum, MB | Gold Medal Games |
Customer experience
Decrypto
GMG Earth Matters
In-app purchases
Decrypto
- Help Points$0.99
- 5 Keys$1.49
- Remove ads$1.99
Show 5 moreShow fewer
- 15 Keys$3.49
- 30 Keys$5.49
- Unlimited Keys$11.49
- Solutions$14.99
- Solutions & Unlimited Keys$19.99
GMG Earth Matters
- 1000 Coins$1.99
- 4000 Coins$4.99
- 10000 Coins$9.99
Questions
Is Decrypto free?
Is GMG Earth Matters free?
Which has better reviews, Decrypto or GMG Earth Matters?
Do Decrypto or GMG Earth Matters have ads?
Which is updated more often, Decrypto or GMG Earth Matters?
Other comparisons
