Sky Invasion vs Stellar Stack Puzzle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sky Invasion
Pilot a variety of aircraft, each with unique upgrades and weapons, to defend Earth from monstrous enemy planes. Engage in epic boss battles, collect and upgrade your fleet, and compete for the top spot on the leaderboard in this classic shoot-em-up.
- Dozens of aircraft with unique upgrades
- Variety of weapons and ultimate moves
- Epic boss battles
- Unlock and upgrade planes
- Leaderboard challenges
- Classic shoot-em-up gameplay
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You are the earth’s last defence force with dozens of different aircraft for you to choose from—from fighter jets to cutesy looking ones! All with their own unique upgrades, weapons, bullets and even an ultimate move to use at your disposal. Use a variety of different weapons to get the advantage and become the Earth’s last defence force in epic boss battles! The enemy forces are led by truly monstrous-looking planes with different combat abilities! Rescue and gather your forces to overwhelm the enemy in this classic shoot-em-up plane game. [Game Features]: ? Easy and Fun Easy to learn and play; use your plane’s special ultimate as auto shooting is permanent! ? Unlock and upgrade your planes Collect and upgrade a variety of different lands to use as you progress through the game. This will bring in some unique gameplay elements and more strategic options the more you play. ? Exciting Gameplay Use a variety of different weapons to score higher. Combine different weapon combos to unlock a special rarity for the staggooge. ? Conquer the leaderboard Challenge your friends by scoring the highest in various challenges. Ascend to the top and become the very best! ? Be the Earth’s last defense force Defeat those who would stand in your way to achieve victory! Ascend to the top and become the very best!
Stellar Stack Puzzle
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Prepare for an exhilarating space adventure in this action-packed 2D shooter, where every battle pushes you closer to the stars. Take command of your ship and face waves of relentless enemies descending from above. As you blast through these sci-fi invaders, their defeated ships fall and stack up, creating a unique battlefield that rises with every victory. Your mission is simple yet challenging: reach the highest possible height, set new records, and survive epic boss fights. Choose from 5 powerful ships, each offering distinct abilities to suit your playstyle. As you progress, you'll unlock 5 different environments, or themes, each with its own unique aesthetic, adding variety and depth to your experience. The environments unlock automatically based on the time you spend playing, providing an ever-changing landscape for your space battles. Boosters are your key to survival when the odds are stacked against you. With 3 different types of power-ups at your disposal, you can quickly gain the upper hand in critical moments. Use these boosters strategically to blast through waves of enemies, defeat formidable bosses, and ascend to new heights. The in-game store allows you to spend the coins you earn from defeating enemies and completing missions. Unlock new ships to expand your fleet and purchase additional boosters to ensure you're always prepared for the next challenge. This progression system keeps the gameplay engaging and rewarding, as you continually strive to reach the maximum height and achieve new high scores. With its dynamic gameplay, sci-fi themes, and endless replayability, this 2D space shooter offers a thrilling experience for fans of arcade shooters, space combat games, and anyone looking for a fast-paced, action-packed adventure. Explore new galaxies, battle against fierce enemies, and see how far you can go in this ultimate space challenge. Download now and embark on your journey to the stars!
Screenshots
Verdict
Sky Invasion and Stellar Stack Puzzle are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Sky Invasion sells 10 one-off in-app purchases and Stellar Stack Puzzle sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Sky Invasion | Stellar Stack Puzzle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 281 MB | 124 MB |
| Age rating | 12+ | 4+ |
| Developer | U8Space Sdn. Bhd. | Areeb Zahid |
In-app purchases
Sky Invasion
- Mini Pack$0.99
- Booster Bundle$0.99
- Small Pack$1.99
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- Weekly Bundle$2.99
- Big Pack$3.99
- Bronze Pack$5.99
- Silver Pack$8.99
- Gold Pack$12.99
- Crystal Pack$19.99
- Diamond Pack$29.99
Stellar Stack Puzzle
- 2K Coins$1.99
- 4K Coins$3.99
- 8K Coins$4.99
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- 12K Coins$8.99
- 20K Coins$12.99
- 35K Coins$14.99
Questions
Is Sky Invasion free?
Is Stellar Stack Puzzle free?
Do Sky Invasion or Stellar Stack Puzzle have ads?
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