Comparison

Atlantis Invaders vs SineBird!

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

Head to head
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/

About

SineBird!

Features
Read full description

SineBird! is a casual action game where movement creates music. Guide BobBird on his sinusoidal flight among the trees in the Melody Forest. 
 As you play, each path adjustment determines the melody of the Flight of Bob concerto performed by the SineBird band. 
 The band also performs 10 pieces by J. S. Bach and 10 songs in the “randomized birdsong” style. 
Unique iterations of both the gameplay music and birdsongs can be saved creating your own SineBird! soundtrack and concert. 
The Game * Two-thumb slider controller - try thumb sleeves for smooth sliding * Avoid the trees - new obstacle course each pass 
* Increasing difficulty - faster tempo and tighter navigation * Three play modes: * Health Bar: recover by eating fruit while building score multipliers * Perfect Flight: one mistake ends the flight * Practice Mode: learn to fly and freely experiment with the music * Each game’s soundtrack is a unique new song The Concert * 10 pieces by J. S. Bach * 10 randomized birdsongs - each performance is different * Visualization of notes played and song logic in realtime * Save your favorite iterations to a playlist

Screenshots

Atlantis Invaders4 screens
SineBird!4 screens

Verdict

The call

The clearest difference is price: Atlantis Invaders at Free against SineBird!'s $2.99. SineBird!'s advantage is in-app purchases (none vs 70) and ads (none vs shown). On update cadence, device support and iOS requirement 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

Atlantis Invaders is free to download; SineBird! costs $2.99 up front. Atlantis Invaders sells 70 one-off in-app purchases. SineBird! asks for nothing beyond the download.

UpkeepUpdate frequency

Atlantis Invaders ships an update fortnightly, SineBird! every 8 days. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
Atlantis Invaders versus SineBird!: the parameters behind the verdict, then further details
ParameterAtlantis InvadersSineBird!
PriceFree — better$2.99
Rating4.7 (2.8K ratings) — better—
Positive reviews31.0% of reviews—
Number of ratings2.8K — better—
Update frequencyFortnightlyEvery 8 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size424 MB175 MB
Age rating12+4+
DeveloperSpirit BombJakub Plachy

Bugs and 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

SineBird!

Not enough reviews yet to summarise bugs or requests.

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
None

SineBird!

No in-app purchases

Questions

Is Atlantis Invaders free?
Atlantis Invaders is free to download, with in-app purchases available.
Is SineBird! free?
SineBird! costs $2.99, with no in-app purchases.
Do Atlantis Invaders or SineBird! have ads?
Atlantis Invaders shows ads; SineBird! does not.
Which is updated more often, Atlantis Invaders or SineBird!?
Atlantis Invaders ships an update fortnightly, and SineBird! every 8 days. Most recently, Atlantis Invaders was updated on October 25, 2026 and SineBird! on October 25, 2026.

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