Comparison

Space Grunt vs Robots On

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

Robots On

Engage in a fast-paced arcade shooter where you must blast through waves of killer robots. Utilize power-ups and strategic targeting to survive increasingly difficult levels in this retro-inspired game.

Highlights
  • Intensive arcade gameplay
  • Multiple camera angles
  • AI-powered robot enemies
  • Power-up collection
  • Retro 2D mode
  • Rapid fire controls
Features
Read full description

Robots On Can you defeat the swarm of killer robots in this old school arcade classic. This is a quick moving intensive arcade game, you will need to keeps moving and keep blasting to stay alive. The robots are attacking in this retro game from the days of classic arcade games. Play flat 2D mode like the original arcade games, or tap the camera icon to zoom in on action and play from several different camera angles including 1st and 3rd person modes. These Robots run the latest Artificial Intelligence (AI 2.0a), but they are still not quite as smart as us humans. I'm assuming you are a human, please forgive me if you are ... er something else... Anyway another advantage is that you get about a 2 second start on the robots, while they are powering up, but all too soon its "Robots On" and you need to move. Make the most of the vital few seconds to target the most powerful and difficult robots first. The action is manic, you are out numbered a thousand to one by the collective bunch of evil killer robots. To get to the next level you must destroy all Robots, accept the Grunts which are indestructible. Be sure to collect the specials and power ups along the way :- Star : Auto aim on, this will override aiming for a short term and target the most dangerous robots. Diamond : Shields Cherry: Big points. Heart: Bonus Life. Lightning: Robots freeze until recharged. You start with 5 lives, but will get bonus lives, initially every 5000 points, later every 10,000 points. Here's a quick guide to the Robots :- Reds, - Common worker bots, shoot lasers from eyes. Greens, Grunt bots. heavy indestructible, avoid. Brain Bots. Shoot homing missiles - deadly Torus Bull Bots - replication bots. Wil make other deadly robots. Cake Bots. Fly straight at you, so keep moving. Cube Bots - A faster replication robot, makes deadly cash registers. Cash registers - Another deadly android, shoot bouncing electric balls. Dumb blocks - Harmless, unless you run into them. Firing controls - Tap on the board, or on a robot to fire in that direction. Tap off the board to fire straight ahead. Hold finger down for rapid fire. That's it, easy - download "Robots On" now and help prevent the killer Robots from overwhelming the human race.

Screenshots

Space Grunt4 screens
Robots On4 screens

Verdict

The call

The clearest difference is rating: Space Grunt at 5.0 against Robots On's 3.5. Space Grunt also leads on ads (none vs shown) and update cadence (every 2 months vs every 31 months). Robots On's advantage is in-app purchases (none vs 2). On price, review sentiment, ratings volume 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. Space Grunt sells 2 one-off in-app purchases. Robots On asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Space Grunt holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Space Grunt ships an update every 2 months, Robots On every 31 months. The most recent releases landed on September 8, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Space Grunt versus Robots On: the parameters behind the verdict, then further details
ParameterSpace GruntRobots On
PriceFreeFree
Rating5.0 (2 ratings) — better3.5 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings22
Update frequencyEvery 2 months — betterEvery 31 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size29 MB62 MB
Age rating9+12+
DeveloperEasy 8 SoftwareGalatic Droids

Customer experience

Space Grunt

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

Robots On

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
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

Robots On

No in-app purchases

Questions

Is Space Grunt free?
Space Grunt is free to download, with in-app purchases available.
Is Robots On free?
Robots On is free to download, with no in-app purchases.
Which has better reviews, Space Grunt or Robots On?
Space Grunt is rated higher. Space Grunt averages 5.0 out of 5 from 2 ratings, while Robots On averages 3.5 from 2 ratings.
Do Space Grunt or Robots On have ads?
Robots On shows ads; Space Grunt does not.
Which is updated more often, Space Grunt or Robots On?
Space Grunt ships an update every 2 months, and Robots On every 31 months. Most recently, Space Grunt was updated on September 8, 2026 and Robots On on September 21, 2026.

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