Mem vs Astro Invaders
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mem
This is a casual memory matching game for all ages that helps improve focus and memory. It features various shape themes and customizable difficulty levels to keep your brain sharp in a fun way.
- Memory pair matching
- Shape recognition themes
- Multiple game modes (Casual, Lockout, Challenge)
- Adjustable timer for difficulty
- Focus and concentration enhancement
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Mem-mur-re (Memory) is a casual memory pair matching game designed to help adults and kids focus on improving their memory. Each stage features a different shape theme, allowing players to focus on not only pattern recognition but also shape recognition! Work on enhancing your concentration and memory in a fun and enjoyable way to keep your brain sharp! (Features) GAME MODES Casual: For a simple laid back experience where there is no limit to the number of mistakes you are allowed. Lockout: For a bit more of a game challenge. Each tile can only be selected 3 times before becoming locked and unmatchable. Challenge: For the most challenging gamer types. Each level has a finite amount of attempts to complete the entire level. __________________________________________________________________________ CUSTOMIZABLE DIFFICULTY Players can use an adjustable timer to tailor the game to your current memory level skill.(Deciding how long flipped cards should be revealing) __________________________________________________________________________ -THEME SHAPED LEVELS -Squares, Circles, Triangles, Stars, and Hex- To help players focus on any particular SHAPE when it comes to the pattern and shape recognition.
Astro Invaders
Experience an intense arcade space battle with simple controls. Upgrade your ship to rapidly grow stronger and defeat challenging bosses. Uncover a lasting story through 21 boss encounters.
- Simple movement and shooting controls
- Intense space battles
- Ship upgrades for rapid growth
- 21 boss battles
- Uncover a lasting story
- Casual action and rail shooter mechanics
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● Dodge While Moving, Shoot While Standing Still ! An Intense Space Battle Unfolds With Simple Controls! This Is A Fresh New Arcade Shooter That Avoids Maniac-Level Bullet Hell And Instead Borrows The Best Of Trendy Casual Action Games And Classic Rail Shooter Mechanics. ● The Thrill Of Rapid Growth Through Upgrades ! Upgrade Your Ship, Crush The Bosses You Once Struggled Against In An Instant, And Gather Bits For Even Faster Upgrades ! ● Fast-Paced, Impactful Gameplay With A Lasting Story. A Tight Experience Packed With 21 Boss Battles And No Filler Enemy Fights—Only Those Who Reach The Ending Will Uncover The Story Behind The Game !
Screenshots
Verdict
The clearest difference is ratings volume: Mem at 7 against Astro Invaders's 1. On price, rating, 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. Mem sells 1 one-off in-app purchase and Astro Invaders sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.9 for Mem against 5.0 for Astro Invaders. That said, the two scores are not equally well evidenced: Mem has 7 ratings behind it against 1, so its average is the more settled of the two.
Mem ships an update every 5 days, Astro Invaders weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Mem | Astro Invaders |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 5 days — better | Weekly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 109 MB | 110 MB |
| Age rating | 12+ | 9+ |
| Developer | Christepher Pryer | Sang Yoon Lee |
Customer experience
Mem
Astro Invaders
In-app purchases
Mem
- Remove Ads$1.99
Astro Invaders
- Unlimited Ad Skip$0.99
- 10000 Bit Pack$0.99
- Super Bit Pack$1.99
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- Mega Bit Pack$2.99
- 50000 Bit Pack$2.99
- 150000 Bit Pack$4.99









