Comparison

Block Invaders vs Operation

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

Head to head
About

Block Invaders

Command a planetary defense platform to shoot down waves of alien invaders. Strategically build and upgrade weapons, each with unique abilities, to counter diverse enemy behaviors and complete missions.

Highlights
  • Command orbital defense platform
  • Build and upgrade weapons
  • Shoot down incoming alien waves
  • Diverse invader behaviors
  • Multiple weapon abilities
  • Mission-based gameplay
Features
Read full description

Earth is under attack. Block Invaders are advancing on your orbital defense platform โ€” and they move just like you remember. Choose your weapons, pick your positions, and hold the line. Block Invaders: Tower Defense combines the nostalgia of classic arcade invaders with deep strategic tower defense gameplay. The invaders advance in waves moving forward together, pausing, then surging again โ€” familiar, relentless, and satisfying to stop. No two games play the same. Every mission generates its own wave pattern, so your strategy needs to adapt every time you play. Features: โ€ข 6 weapon slots on your orbital platform โ€ข Unique weapon types โ€” pulse lasers, photon bolts, cobalt beams, rockets and mines โ€ข 4 upgrade levels per weapon โ€ข 10 missions with 4 waves each โ€ข Procedurally varied enemy waves โ€” no two runs identical โ€ข Multiple enemy types including Reapers, Gatherers, Banshees and Brains โ€ข Play free โ€” unlock bonus missions with a single optional purchase โ€ข Universal app โ€” iPhone, iPad and Mac โ€ข Apple Silicon No timers. No energy bars. No forced ads. Just strategy. Features of Block Invaders: Tower Defense :- * Many types of Invaders including Reapers, Gatherers, Banshees and Brains to name but a few. * More invaders added on each new release * Weapons include Pulse lasers, Photon bolts, Cobalt Beams and Rockets. * More weapons and Enemies to come in future updates.

About

Operation

Pilot a spaceship to defend Earth from an alien invasion. Dodge enemy ships, collect star dust for points, and use onboard weapons to defeat the xenomorphs and save humanity.

Highlights
  • Spaceship combat
  • Alien invasion defense
  • Dodge enemy ships
  • Collect star dust
  • Use onboard weapons
Features
Read full description

In the distant future, Earth was attacked by an alien enemy known as xenomorphs. They used their technology to infiltrate Earth and take over. However, a hero emerged who decided to defend his planet. He gathered a team of other survivors and went into space to find a way to defeat the aliens. Our hero pilots a spaceship and must destroy enemies using various weapons on board. The player's goal is to protect Earth from alien invasion and save humanity. Rules: dodge collisions with alien ships, earn 5 points for each maneuver. Star dust clouds are our helpers โ€“ they help us hide from the aliens, and you get 30 points for flying through them.

Screenshots

Block Invaders4 screens
Operation4 screens

Verdict

The call

The clearest difference is in-app purchases: Operation at none against Block Invaders's 2. Operation also leads on update cadence (daily vs every 12 months). On price, review sentiment, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Block Invaders sells 2 one-off in-app purchases. Operation asks for nothing beyond the download.

UpkeepUpdate frequency

Block Invaders ships an update every 12 months, Operation daily. The most recent releases landed on August 26, 2026 and June 1, 2026 respectively.

Scorecard3 real differences ยท 5 level
Block Invaders versus Operation: the parameters behind the verdict, then further details
ParameterBlock InvadersOperation
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 12 monthsDaily โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationFree with in-app purchasesFree โ€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.6 โ€” better
Further details โ€” not scored
Size91 MB12 MB
Age rating4+4+
DeveloperQED Gaming PTY. LtdBoris Kravchenko

Customer experience

Block Invaders

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Operation

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Block Invaders

One-time2
  • Earth Missions 6 to 10$0.99
  • No Adverts$1.99
None

Operation

No in-app purchases

Questions

Is Block Invaders free?
Block Invaders is free to download, with in-app purchases available.
Is Operation free?
Operation is free to download, with no in-app purchases.
Do Block Invaders or Operation have ads?
Neither Block Invaders nor Operation shows ads.
Which is updated more often, Block Invaders or Operation?
Block Invaders ships an update every 12 months, and Operation daily. Most recently, Block Invaders was updated on August 26, 2026 and Operation on June 1, 2026.

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