Comparison

Space Grunt vs Celtreos

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

Head to head
About

Space Grunt

Battle alien invaders with jetpacks and guns across three distinct combat zones. Explore worlds, unlock heroes, and compete on speed run leaderboards. Enjoy ragdoll physics and particle effects in this action-packed game.

Highlights
  • Jetpack and gun combat
  • Ragdoll physics and particle effects
  • Speed run leaderboards
  • MFI controller support
  • Unlockable heroes and custom skins
  • Hidden collectibles
Features
Read full description

Earth's been invaded! Use jetpacks and guns to battle machines, monsters and alien bosses. Screen is divided into three zones (retreat, advance, and jump/jetpack). Features: - ragdoll physics & particle effects - speed run leaderboards - supports MFI controllers - supports landscape and portrait mode - three hidden giant coins in each world - two unlockable heroes, and support for importing custom skins - minigames - "Fair View" camera skew algorithm ensures consistent lookahead on wider/narrower devices

About

Celtreos

Experience a classic side-scrolling space shooter with modern features. Engage in single-player or co-op gameplay, customize your ship, and battle through diverse stages with randomized elements and challenging bosses. Enjoy a rich soundtrack or play your own music.

Highlights
  • Single-player and two-player co-op modes
  • Over 12 diverse and partially randomized stages
  • Extensive weapon arsenal and ship customization
  • In-game power-ups and power-downs
  • Customizable game settings (lives, graphics, speed)
  • 30 unique songs or play your own music
Features
Read full description

One-player game, OR two players if you have a game controller. “Celtreos” is like the space shooters of decades past: tiny ship, big weapons, waves of foes, power-ups and obstacles. Music, Sound and Voice • 30 different songs (45 minutes of music!) • You can even play your own music and auto-next-song for key game events Stages • Over 12 stages: a city, space station, ocean and more • Horizontal scrolling but more than one “screen” of vertical space • Start from any stage you want! • Each stage ends with a challenging boss • Wall layouts and spawn patterns are partially randomized Weapon Arrays, Special Moves, Power-Ups and More • Choose from a huge arsenal of weapons and special abilities • 10 different ships to choose from • Customize ship properties, such as gun mount locations • In-game power-ups with weapons, defenses and temporary powers (like Rapid Fire) • Power-down orbs with temporary inconveniences (like Weapon Freeze) Additional Configuration Options • Set number of lives, and number of times that special abilities can be used • Set graphics quality to one of three levels, and default ship speed

Screenshots

Space Grunt4 screens
Celtreos4 screens

Verdict

The call

The clearest difference is price: Space Grunt at Free against Celtreos's $4.99. Space Grunt also leads on iOS requirement (12.0 vs 15.6). Celtreos's advantage is in-app purchases (none vs 2) and update cadence (monthly vs every 2 months). On rating, review sentiment, ratings volume and ads 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

Space Grunt is free to download; Celtreos costs $4.99 up front. Space Grunt sells 2 one-off in-app purchases. Celtreos asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Space Grunt against 5.0 for Celtreos. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Space Grunt ships an update every 2 months, Celtreos monthly. The most recent releases landed on November 1, 2026 and November 13, 2026 respectively.

Scorecard5 real differences · 5 level
Space Grunt versus Celtreos: the parameters behind the verdict, then further details
ParameterSpace GruntCeltreos
PriceFree — better$4.99
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple TV — better
Requires iOS12.0 — better15.6
Further details — not scored
Size29 MB136 MB
Age rating9+9+
DeveloperEasy 8 SoftwareKevin Grant

Customer experience

Space Grunt

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Celtreos

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Space Grunt

One-time2
  • Coin Doubler$0.99
  • Coin Pack$0.99
None

Celtreos

No in-app purchases

Questions

Is Space Grunt free?
Space Grunt is free to download, with in-app purchases available.
Is Celtreos free?
Celtreos costs $4.99, with no in-app purchases.
Which has better reviews, Space Grunt or Celtreos?
Space Grunt and Celtreos are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Space Grunt or Celtreos have ads?
Neither Space Grunt nor Celtreos shows ads.
Which is updated more often, Space Grunt or Celtreos?
Space Grunt ships an update every 2 months, and Celtreos monthly. Most recently, Space Grunt was updated on November 1, 2026 and Celtreos on November 13, 2026.

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