EDGE21 vs AnomalyAquarium
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
EDGE21
Master blackjack strategy with this educational tool. Learn basic strategy, practice card counting, and identify mistakes with detailed explanations and engaging game modes. Designed for entertainment and skill improvement.
- Learn Basic Strategy
- Speedrun Mode
- Boss Hand Mode
- Card Counting Practice
- Mistake Identification
- Detailed Explanations
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EDGE21 is an educational tool designed to teach blackjack strategy and game concepts. This app is for entertainment purposes only. EDGE21 is a blackjack strategy training app designed to help you master optimal decision-making at the table. FEATURES: • Learn Basic Strategy with clear rules for every hand combination • Speedrun Mode: Make rapid-fire decisions and test your skills • Boss Hand Mode: Challenge yourself with difficult hands • Count Sprint: Practice card counting techniques • Leak Detector: Identify and fix mistakes in your strategy • Detailed explanations for every move so you understand WHY each decision is optimal GAME MODES: Choose your preferred learning style with independent game modes designed to improve different aspects of your blackjack play. Perfect for: - Casino enthusiasts wanting to improve their game - Blackjack players learning basic strategy - Anyone wanting to practice decision-making and strategy DISCLAIMER: This app is for entertainment and educational purposes only. It is not intended for gambling or real-money activities. Always gamble responsibly and within your means.
AnomalyAquarium
Explore a deserted aquarium at night as a security guard, spotting over 40 unique anomalies. Make correct decisions to light lamps and complete your shift. Enjoy simple controls and random events for endless replayability.
- Anomaly spotting gameplay
- Over 40 unique anomalies
- Randomly appearing anomalies
- Simple mobile controls
- Automatic saving
- Offline play
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Anomaly-Finding Game Inspired by Exit 8 – Now on Mobile! The 6th entry in the popular anomaly-spotting series is here! This time, the setting is an aquarium. 【Story】 This is a popular aquarium in town. You have just started your first shift as a night security guard. As you enter the aquarium looking for the other staff members, you find it strangely deserted. Then you discover a manual left behind on a desk. It reads: "If nothing seems unusual, leave through the exit on the right. If you find an anomaly, return to the exit on the left. Each correct decision will light one lamp. When all 9 lamps are lit, your shift is complete." And so begins a night filled with far too many anomalies... 【Features】 • Simple and easy controls designed for mobile devices. Move left or right and tap the screen to zoom in and inspect details. (Perfect even for players who are not comfortable with complex 3D controls!) • Discover over 40 different anomalies. Some are subtle and difficult to spot, some contain horror elements, and others may make you laugh. Since anomalies appear randomly, every playthrough is different. • Automatic saving after each round lets you enjoy short play sessions and quit anytime. • Fully playable offline, making it perfect for commuting, traveling, or passing the time. • A game that tests your observation skills and memory while giving your brain a fun workout. 【Important Notes】 • The game may not function properly on older devices or operating systems. • Completely free to play. No in-app purchases required. • Contains horror elements. Player discretion is advised. • Video uploads, livestreams, and Let's Play content are welcome. • Reviews, feedback, and comments are greatly appreciated. 【Video Content Guidelines】 • Individuals and companies may create videos or livestreams featuring this game without prior permission. • Monetization is allowed only through the monetization features provided by video-sharing platforms. • If possible, please include the game's title in your video title and a link to the store page in the description.
Screenshots
Verdict
The clearest difference is rating: EDGE21 at 5.0 against AnomalyAquarium's 3.0. EDGE21 also leads on review sentiment (100% vs 83%). On price, ratings volume, update cadence and ads 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.
EDGE21 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 100% of EDGE21's written reviews are positive against 83% of AnomalyAquarium's.
EDGE21 ships an update fortnightly, AnomalyAquarium daily. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | EDGE21 | AnomalyAquarium |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 100.0% of reviews — better | 83.3% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Fortnightly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 348 MB |
| Age rating | 4+ | 12+ |
| Developer | Mark Baumrind | YU HIRATA |
Customer experience
EDGE21
AnomalyAquarium
In-app purchases
EDGE21
No in-app purchases
AnomalyAquarium
No in-app purchases









