Comparison

Mem vs Astro Invaders

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Memory pair matching
  • Shape recognition themes
  • Multiple game modes (Casual, Lockout, Challenge)
  • Adjustable timer for difficulty
  • Focus and concentration enhancement
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

● 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

Mem4 screens
Astro Invaders4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Mem ships an update every 5 days, Astro Invaders weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard1 real difference · 9 level
Mem versus Astro Invaders: the parameters behind the verdict, then further details
ParameterMemAstro Invaders
PriceFreeFree
Rating4.9 (7 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 5 days — betterWeekly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size109 MB110 MB
Age rating12+9+
DeveloperChristepher PryerSang Yoon Lee

Customer experience

Mem

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Astro Invaders

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Mem

One-time1
  • Remove Ads$1.99
6 purchases

Astro Invaders

One-time6
  • Unlimited Ad Skip$0.99
  • 10000 Bit Pack$0.99
  • Super Bit Pack$1.99
Show 3 more
  • Mega Bit Pack$2.99
  • 50000 Bit Pack$2.99
  • 150000 Bit Pack$4.99

Questions

Is Mem free?
Mem is free to download, with in-app purchases available.
Is Astro Invaders free?
Astro Invaders is free to download, with in-app purchases available.
Which has better reviews, Mem or Astro Invaders?
Astro Invaders is rated higher. Mem averages 4.9 out of 5 from 7 ratings, while Astro Invaders averages 5.0 from 1 ratings.
Do Mem or Astro Invaders have ads?
Both Mem and Astro Invaders show ads.
Which is updated more often, Mem or Astro Invaders?
Mem ships an update every 5 days, and Astro Invaders weekly. Most recently, Mem was updated on November 3, 2026 and Astro Invaders on October 30, 2026.

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