Comparison

Galaxy Defender+ vs Atlantis Invaders

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

Head to head
About

Galaxy Defender+

A retro-style shooter game with unique ships and power-ups. Dodge enemies, collect upgrades, and aim for a high score in an endless progression. This game is exclusively for eligible Motivv Health Studios members.

Highlights
  • Choose unique starting ships
  • Dodge enemy attacks
  • Collect upgrades and power-ups
  • Endless game progression
  • High score challenges
  • Themed retro graphics
Features
Read full description

**Please note: This game is available only to eligible Motivv Health Studios ("Motivv") members.** An incredible, beautifully illustrated retro shooter action game! GAMEPLAY & FEATURES - Choose your starting ship with unique attack - Dodge enemy ships and attacks - Collect upgrades and power-ups - Play as long as you can to beat your high score! - Never ending game progression... just don't get hit! - Easy to learn, difficult to master - No time limit - Beautiful themed graphics - Available on multiple devices The Motivv platform lets you play ad-free games you'll love, answer fun and health-based trivia questions, complete personalized missions, discover and easily access helpful resources should you need them, and earn tickets for chances to win prizes and/or rewards*. (*if offered depending on your membership access) Once registered, use the same login to play our entire suite of games! Disclaimer: Motivv Health Studios DOES NOT provide medical advice. Please make sure to always seek the advice of your doctor.

About

Atlantis Invaders

Dive into an underwater arcade shooter where you defend the sunken kingdom of Atlantis from mechanical invaders. Experience intense bullet-hell action, upgrade your submarine fleet, and battle colossal bosses in a stunning deep-sea environment. Play anytime, anywhere with 100% offline action.

Highlights
  • Deep-sea arcade shooter gameplay
  • Bullet-hell projectile dodging
  • Fleet building and submarine upgrades
  • Tactical drone support
  • Epic boss battles
  • Stunning underwater environments
  • 100% offline play
Features
Read full description

The war isn't in the stars anymore - it’s in the abyss. Dive into the ultimate deep-sea arcade shooter! Welcome to Atlantis Invaders, the next evolution of the classic Shoot 'em up. We invite you to explore the treacherous abyss, where the sunken kingdom of Atlantis is under siege by mechanical invaders. You are its last line of defense. Experience the evolution of bullet-hell. Dodge thousands of glowing projectiles, navigate through ancient ruins, and master fast-paced action. Built for precision, the game offers the perfect balance between simple, accessible gameplay and true bullet-hell mastery. Why you should join the battle: STUNNING UNDERWATER WORLD Fight through vibrant trenches and glowing reefs. Every stage is a new challenge, designed to pull you deeper into the mysteries of the deep. UNSTOPPABLE FLEET PROGRESSION - Build your fleet: Command legendary submarines. Unlock a diverse range of vessels, from agile scouts to elite SSR battleships. - Evolve and dominate: Collect shards to upgrade your ships. Watch your power skyrocket as you unlock devastating firepower and screen-clearing ultimate abilities. - Drone support: Equip tactical drones to provide cover fire, allowing you to min-max your combat build for any mission. EPIC BOSS FIGHTS Face off against terrifying, screen-filling titans. Test your reflexes and upgrades in these ultimate showdowns. Can you survive their relentless bullet patterns? 100% OFFLINE ACTION No Wi-Fi? No problem! The battle for the ocean never stops. Enjoy a premium, lag-free arcade experience anytime, anywhere - perfect for anyone. The abyss is calling. Will you answer? Atlantis doesn't need just a pilot - It needs a legend. Gear up, submerge, and unleash hell upon the monsters threatening the deep. Download Atlantis Invaders today and lead your fleet to victory! Visit us: https://www.facebook.com/AtlantisInvaders/ Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Galaxy Defender+4 screens
Atlantis Invaders4 screens

Verdict

The call

The clearest difference is in-app purchases: Galaxy Defender+ at none against Atlantis Invaders's 70. Galaxy Defender+ also leads on ads (none vs shown) and rating (5.0 vs 4.7). Atlantis Invaders's advantage is ratings volume (2.8K vs 1) and update cadence (fortnightly vs every 6 weeks). On price and device support 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. Atlantis Invaders sells 70 one-off in-app purchases. Galaxy Defender+ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Galaxy Defender+ holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Atlantis Invaders has 2.8K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Galaxy Defender+ ships an update every 6 weeks, Atlantis Invaders fortnightly. The most recent releases landed on October 10, 2026 and October 22, 2026 respectively.

Scorecard7 real differences · 3 level
Galaxy Defender+ versus Atlantis Invaders: the parameters behind the verdict, then further details
ParameterGalaxy Defender+Atlantis Invaders
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (2.8K ratings)
Positive reviews—31.0% of reviews
Number of ratings12.8K — better
Update frequencyEvery 6 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size170 MB424 MB
Age rating17+12+
DeveloperMotivve Health Studios, LLCSpirit Bomb

Bugs and requests

Galaxy Defender+

Not enough reviews yet to summarise bugs or requests.

Atlantis Invaders

Reported bugs

3 issues
  • Game crashes on launch
  • Progress not saving properly
  • Connectivity issues

Requested features

3 requests
  • More level updates
  • Improved save/load system
  • Reduced advertising

In-app purchases

None

Galaxy Defender+

No in-app purchases

70 purchases

Atlantis Invaders

One-time70
  • Starter Pack 1$0.99
  • Fortune Tree 1$0.99
  • Fireworks Bundle 1$0.99
Show 67 more
  • 88 Diamonds Pack$1.99
  • Special Pack 1$1.99
  • Piggy Bank 1$1.99
  • Fortune Tree 2$1.99
  • Expedition Bonus Pack 2$1.99
  • Chapter Pack 4$2.99
  • Evolve Pack$2.99
  • Starter Pack 2$3.99
  • Chapter Pack 5$3.99
  • Special Pack 2$4.99
  • 240 Diamonds Pack$4.99
  • Special Pack 3$4.99
  • 1 star Arctic Wolf$4.99
  • Piggy Bank 2$4.99
  • Ship Fiddle Frog$4.99
  • Chapter Pack 6$4.99
  • Chapter Pack 7$4.99
  • Fortune Pack 1$4.99
  • Veteran Pass 1$4.99
  • Premium Card$4.99
  • Evolve Pack$4.99
  • Fireworks Bundle 2$4.99
  • Starter Pack 001$4.99
  • Starter Pack 1a$4.99
  • Fortune Tree 3$4.99
  • Expedition Bonus Pack 3$4.99
  • Expedition Pack 1$4.99
  • Starter Pack 3$5.99
  • Evolve Pack$5.99
  • Chapter Pack 9$6.99
  • Evolve Pack$6.99
  • Chapter Pack 8$6.99
  • Evolve Pack$8.99
  • Chapter Pack 10$8.99
  • 520 Diamonds Pack$9.99
  • Special Pack 4$9.99
  • 2 star Red Widow$9.99
  • 2 star Alchemist$9.99
  • Piggy Bank 3$9.99
  • Fortune Tree 4$9.99
  • Weekly Special Pack 1$9.99
  • Evolve Pack$11.99
  • Chapter Pack 13$11.99
  • Chapter Pack 14$12.99
  • Veteran Pass 2$13.99
  • Evolve Pack$14.99
  • Fortune Tree 5$14.99
  • Chapter Pack 16$14.99
  • 1120 Diamonds Pack$19.99
  • 3 star Alchemist$19.99
  • Super Premium Card$19.99
  • Fortune Medal Pack 3$19.99
  • Weekly Special Pack 4$19.99
  • Daily Special Pack 5$19.99
  • Fortune Tree 6$19.99
  • Daily Special Pack 6$19.99
  • Daily Special Pack 4$19.99
  • Weekly Special Pack 3$19.99
  • Special Pack 5$19.99
  • Expedition Bonus Pack 6$19.99
  • Chapter Pack 21$19.99
  • Chapter Pack 36$24.99
  • Weekly Special Pack 6$29.99
  • Daily Special Pack 7$29.99
  • 3000 Diamonds Pack$49.99
  • Weekly Special Pack 8$49.99
  • Daily Special Pack 8$49.99

Questions

Is Galaxy Defender+ free?
Galaxy Defender+ is free to download, with no in-app purchases.
Is Atlantis Invaders free?
Atlantis Invaders is free to download, with in-app purchases available.
Which has better reviews, Galaxy Defender+ or Atlantis Invaders?
Galaxy Defender+ is rated higher. Galaxy Defender+ averages 5.0 out of 5 from 1 ratings, while Atlantis Invaders averages 4.7 from 2.8K ratings.
Do Galaxy Defender+ or Atlantis Invaders have ads?
Atlantis Invaders shows ads; Galaxy Defender+ does not.
Which is updated more often, Galaxy Defender+ or Atlantis Invaders?
Galaxy Defender+ ships an update every 6 weeks, and Atlantis Invaders fortnightly. Most recently, Galaxy Defender+ was updated on October 10, 2026 and Atlantis Invaders on October 22, 2026.

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