Comparison

Boson X vs Ultimate Space War

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

Head to head
About

Boson X

Experience a fast-paced rotational runner set within a particle accelerator. Jump between Planck units, generate high-energy collisions, and discover new particles in a hazardous subatomic world. This game emphasizes precise timing and reflexes without in-app purchases or power-ups.

Highlights
  • Rotational runner gameplay
  • Particle accelerator setting
  • Quantum jumping mechanics
  • High-energy collision generation
  • Subatomic world navigation
  • Precise timing and reflexes required
Features
Read full description

Boson X is a fast-paced rotational runner set in a particle accelerator. Featured as one of the Best of 2013 apps on the App Store. "a brilliant, twitchy arcade masterpiece that pulsates with originality and heart" - Pocket Gamer, 9/10 "a massively unique take on the endless runner genre" - Gamezebo, 4.5/5 "an amazingly compelling game" - Touch Arcade, 5/5 Quantum jump from Planck to Planck as you build up speed inside an enormous particle accelerator and generate high-energy collisions to discover strange new particles. Use precise timing and fast reflexes to navigate a hazardous subatomic world where floors and ceilings don't exist. Will you be fast enough to find the elusive Boson X? This game contains no in-app purchases, superfluous power-ups, coins or XP systems - just deadly serious scientific research. iPhone 4 or newer recommended. WARNING: Some sections of this game contain flashing lights.

About

Ultimate Space War

Pilot an advanced fighter jet to defend the galaxy from alien invaders. Earn XP and coins to permanently upgrade your ship and unlock new abilities. Choose between level-based progression or endless arcade action.

Highlights
  • Player progression and hangar upgrades
  • Two game modes: Sectors and Quick Play
  • Dynamic spaceship evolution with power-ups
  • Tactical screen-clearing bombs
  • Intuitive drag controls
  • Cloud saves and live updates
Features
Read full description

Prepare for the ultimate galactic battle in Ultimate Space War! The galaxy is under attack by swarms of deadly alien invaders. As the commander of the elite space defense force, it is your duty to pilot the most advanced fighter jet, eliminate the insectoid alien threat, and protect humanity from total annihilation. Do you have what it takes to survive the space storm? NEW: Player Progression & The Hangar Evolve beyond the battlefield! Destroy enemies to earn XP and collect Coins. Level up your pilot profile to unlock powerful, permanent upgrades in the all-new Hangar. Spend your hard-earned coins to boost your ship's Basic Damage and Advanced Fire Rate, turning your fighter into an unstoppable cosmic juggernaut. Track all your loot and upgrade history in the detailed Transactions Log! Two Epic Game Modes • Sectors Mode: Engage in thrilling level-based progression. Conquer unique, increasingly difficult sectors where the alien swarms grow constantly tougher. • Quick Play Mode: Jump straight into endless arcade action. Survive as long as you can, set massive high scores, and farm coins for your next big upgrade! Dynamic Spaceship Evolution Start with an agile fighter jet and evolve your ship mid-battle! Collect power-ups to change your ship design and weapon systems dynamically: • Base Ship: Dual rapid-fire lasers to chip away at early waves. • Double Power (2x): Transforms into a heavy wingspan fighter with twin high-damage cannons and extra engine thrust. • Triple Power (3x): Morphs into a colossal Dreadnought Bomber featuring golden armor plating, triple engine flames, and three massive scatter cannons. Tactical Screen-Clearing Bombs When the screen gets overcrowded, deploy your stored tactical bombs! With a single tap, wipe out all active enemies on the screen instantly, saving your ship from critical danger. Key Features: • Deep Progression Economy: Earn XP, level up, farm coins, and permanently upgrade your weapons in the Hangar. • Smart Enemy Scaling: Face unique alien bugs that grow tougher with higher HP as you progress through Sectors, rewarding strategic upgrades. • Cloud Saves & Live Updates: Enjoy seamless guest logins to save your profile. Experience immersive, real-time over-the-air (OTA) game updates. • Dynamic Visuals: Built entirely on smooth vector-based mechanics, offering stunning arcade gameplay at a fluid 60+ FPS. • Pure Arcade Action: Tap, slide, and shoot with intuitive drag controls that feel perfectly natural on any mobile screen. How to Play: - Drag your finger across the screen to move your spaceship. Fire is fully automated. - Destroy alien bugs to earn XP and collect valuable Coins. - Catch glowing power-ups to evolve your ship's size and firepower mid-battle. - Tap the Bomb button in the top right corner to instantly clear massive swarms. - Visit the Hangar from the Main Menu to spend your coins on permanent ship upgrades! The cosmos is counting on you, pilot. Download Ultimate Space War today, upgrade your ship, and start the cosmic crusade!

Screenshots

Boson X4 screens
Ultimate Space War4 screens

Verdict

The call

The clearest difference is price: Ultimate Space War at Free against Boson X's $2.99. Ultimate Space War also leads on update cadence (fortnightly vs every 6 months) and rating (5.0 vs 4.7). Boson X's advantage is ads (none vs shown) and ratings volume (104 vs 1). On in-app purchases 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

Ultimate Space War is free to download; Boson X costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Ultimate Space War holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Boson X has 104 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Boson X ships an update every 6 months, Ultimate Space War fortnightly. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 3 level
Boson X versus Ultimate Space War: the parameters behind the verdict, then further details
ParameterBoson XUltimate Space War
Price$2.99Free — better
Rating4.7 (104 ratings)5.0 (1 ratings) — better
Positive reviews83.2% of reviews—
Number of ratings104 — better1
Update frequencyEvery 6 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better15.0
Further details — not scored
Size22 MB165 MB
Age rating9+4+
DeveloperShape Shop Pty Ltd atf Shape Shop TrustJatin Sharma

Customer experience

Boson X

All ratings104 ratings
Positive94.2%
Neutral1.9%
Negative3.8%
Written reviews273 reviews
Positive83.2%
Neutral5.1%
Negative11.7%

Ultimate Space War

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

Bugs and requests

Boson X

Reported bugs

3 issues
  • Crashes on launch
  • Aspect ratio issues on iPhone 5/6
  • Laser spawning bug on later levels

Requested features

4 requests
  • More levels and content
  • Difficulty settings
  • Improved controls
  • Cloud save support

Ultimate Space War

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Boson X

No in-app purchases

None

Ultimate Space War

No in-app purchases

Questions

Is Boson X free?
Boson X costs $2.99, with no in-app purchases.
Is Ultimate Space War free?
Ultimate Space War is free to download, with no in-app purchases.
Which has better reviews, Boson X or Ultimate Space War?
Ultimate Space War is rated higher. Boson X averages 4.7 out of 5 from 104 ratings, while Ultimate Space War averages 5.0 from 1 ratings.
Do Boson X or Ultimate Space War have ads?
Ultimate Space War shows ads; Boson X does not.
Which is updated more often, Boson X or Ultimate Space War?
Boson X ships an update every 6 months, and Ultimate Space War fortnightly. Most recently, Boson X was updated on October 29, 2026 and Ultimate Space War on October 7, 2026.

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