CrushStations vs Memory
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
CrushStations
This game trains working memory, a key executive function, by challenging players to remember creature colors and types to rescue them from an octopus. It's designed to improve cognitive skills linked to academic success.
- Working memory training
- Executive function development
- Creature memory challenges
- Educational game design
- Research-backed gameplay
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CrushStations is a game designed to train working memory, a subskill of executive functions. Working memory involves holding information in mind and mentally working with it (Diamond, 2013). Players need to remember the color and type of creatures to free them and keep them out of reach of the hungry octopus. How does this support learning? Executive functions refer to a set of top-down, goal-oriented cognitive processes that enable people to control, monitor and plan behaviors and emotions. Miyake and Friedman’s model supports a unity-and-diversity view of EF in that it incorporates the three distinct but related components of EF: inhibitory control, task-switching and updating (Miyake et al., 2000). What is the research evidence? Our research suggests that CrushStations is an effective way to train working memory. The study supporting this claim will be published soon. Research has found that EF is related to performance in literacy and math along with long-term gains in school performance and academic readiness (Blair & Razza, 2007; Brock, Rimm-Kaufman, Nathanson, & Grimm, 2009; St Clair-Thompson & Gathercole, 2006; Welsh, Nix, Blair, Bierman, & Nelson, 2010) and that disparities in EF among preschool children from low-income versus high-income homes may contribute to the achievement gap (Blair & Razza, 2007; Noble, McCandliss, & Farah, 2007). This game is part of the Smart Suite, created by New York University’s CREATE lab in collaboration with the University of California, Santa Barbara, and The Graduate Center, CUNY. The research reported here was supported by the Institute of Education Sciences, U.S. Department of Education, through Grant R305A150417 to the University of California, Santa Barbara. The opinions expressed are those of the authors and do not represent views of the Institute or the U.S. Department of Education.
Memory
A classic memory matching game where players flip cards to find pairs. Aim to clear the board with minimal mistakes and track your progress on the leaderboard. Offers multiple difficulty levels and letter cards for younger players.
- Card matching gameplay
- Minimize 'oops' count
- Leaderboard tracking
- Multiple difficulty levels
- Letter cards for kids
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Memory, also known as Concentration, is the classic card game that trains your memory. Great for kids from 4 to 99. All cards are dealt face down. Tap two cards to turn them face up. If they match (same rank and suit), they leave the table. If they don't, they turn back over and you get one "Oops". Clear the table with as few Oops as you can. - Six sizes, from 12 cards for beginners to the full deck of 52 - Letter cards for young children who don't know playing cards yet - Card Design: choose the card faces, the backs and the table color - The Scoreboard keeps your best score for each size - "Show all cards on start" for a gentler beginning - How To Play guide built in Made for families No ads and no accounts. Settings, the Tip Jar and links out of the game sit behind a simple question only grown-ups can answer, so kids can play on their own. Parents can turn that off in Settings. Memory is free. If you enjoy it, you can support future ad-free games with a tip.
Screenshots
Verdict
The clearest difference is rating: Memory at 5.0 against CrushStations's 4.5. CrushStations's advantage is in-app purchases (none vs 3) and ratings volume (11 vs 1). On price, update cadence, ads 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. Memory sells 3 one-off in-app purchases. CrushStations asks for nothing beyond the download.
Memory holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: CrushStations has 11 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly every 13 months. The most recent releases landed on October 6, 2026 and September 30, 2026 respectively.
| Parameter | CrushStations | Memory |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (11 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 11 — better | 1 |
| Update frequency | Every 13 months | Every 13 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 294 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | New York University | Vlad Feinstein |
Customer experience
CrushStations
Memory
In-app purchases
CrushStations
No in-app purchases
Memory
- Thank you!$0.99
- Thank you very much!$2.99
- Support tip$9.99









