Decrypto vs Just One Game
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
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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.
Just One Game
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Just One Game — Classic Game Collection Eight timeless games, one app. Pick it up for a quick break — and stay for just one more round. ▪ Minesweeper Clear the board without hitting a mine. Three difficulty levels from beginner to expert. ▪ Solitaire (Klondike) Drag or tap cards to build four foundations from Ace to King. ▪ 15 Puzzle Slide the tiles into order from 1 to 15. The faster you solve it, the more coins you earn. ▪ Reversi A classic strategy board game against AI. Choose your stone color and outsmart your opponent. ▪ Gomoku Place five stones in a row on a 15×15 board before the AI does. ▪ 2048 Swipe to merge matching tiles and reach the target number. Simple rules, deep strategy. ▪ Nonogram Decode number clues across rows and columns to fill in the grid and reveal a hidden picture. ▪ Poop Dodge Tap left/right to dodge falling poop. Survive as long as possible to earn more coins.
Screenshots
Verdict
The clearest difference is in-app purchases: Just One Game at none against Decrypto's 8. Just One Game also leads on update cadence (daily vs every 4 days) and iOS requirement (13.0 vs 17.2). Decrypto's advantage is ads (none vs shown). On price and device support 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. Just One Game asks for nothing beyond the download.
Decrypto ships an update every 4 days, Just One Game daily. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.
| Parameter | Decrypto | Just One Game |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (123 ratings) — better | — |
| Positive reviews | 85.4% of reviews | — |
| Number of ratings | 123 — better | — |
| Update frequency | Every 4 days | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Incognitum, MB | JIN WOO JUNG |
In-app purchases
Decrypto
- Help Points$0.99
- 5 Keys$1.49
- Remove ads$1.99
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- 15 Keys$3.49
- 30 Keys$5.49
- Unlimited Keys$11.49
- Solutions$14.99
- Solutions & Unlimited Keys$19.99
Just One Game
No in-app purchases









