Comparison

Groundskeeper2 vs Sub Ninja

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

Head to head
About

Groundskeeper2

Battle waves of robotic space aliens in this fast-paced arcade shooter. Unlock a variety of weapons and new worlds as you fight to protect humanity from an extraterrestrial invasion. Experience randomized levels for endless replayability.

Highlights
  • Unlockable weapons
  • Unlockable worlds
  • Fast-paced arcade action
  • Randomized levels
  • Achievements and leaderboards
Features
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Try To Survive Waves Of Robotic Space Aliens, and be a true hero to the resistance. Unlock new weapons to help you further in your quest to protect the world from the alien invasion. Unlocking new battle area’s as you become a more skilled player with every go About the game Survive the invasion of the supernatural, the robots, the monsters.. the world needs you! Groundskeeper2 throws you in the middle of a war, the war with supernatural robots from outer space.. yeah.. we went there! Every time you play this game you will get further and have a better chance at surviving. You’ll unlock new weapons like the machine-gun, laser-gun, rocket-launcher, and tools like all-destroying light-beams, shields, time-slowdowns, and more! What’s more important, you’ll unlock new worlds and hopefully become a true hero for the resistance… or you die a quick death and try again.. ----- TouchArcade 4/5 – “Groundskeeper2 is an entertaining action game that will keep you busy blasting bots for bits and bobs for a while” Paranerds 9/10 - "It's fast-paced, easy to play and addicting, all the while being charming, funny and filled with fantastic music and art" 148Apps 4/5 - “Groundskeeper2 is a fun and furious action/shooting game that keeps players coming back.” PocketGamer - Bronze award - "A big old bundle of laser blasting fun, Groundskeeper 2 does what it does with style and a cheeky smile" ---- Features: - unlockables, a LOT of unlockables - fast paced arcade action - unlockable weapons - always changing gameplay (levels are randomized) - unlockable worlds - big bad robots - achievements, leaderboards - and did we mention a lot of unlockables?

About

Sub Ninja

Features
Read full description

Swim through the depths of danger in Sub Ninja! Avoid your enemies in this endless underwater challenge!

Screenshots

Groundskeeper24 screens
Sub Ninja3 screens

Verdict

The call

The clearest difference is update cadence: Groundskeeper2 at every 5 weeks against Sub Ninja's every 38 months. Groundskeeper2 also leads on iOS requirement (8.0 vs 12.2). Sub Ninja's advantage is price ($0.99 vs $3.99). On ads, 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

Groundskeeper2 costs $3.99 and Sub Ninja $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Groundskeeper2 ships an update every 5 weeks, Sub Ninja every 38 months. Both last shipped on October 4, 2026.

Scorecard3 real differences · 7 level
Groundskeeper2 versus Sub Ninja: the parameters behind the verdict, then further details
ParameterGroundskeeper2Sub Ninja
Price$3.99$0.99 — better
Rating4.3 (19 ratings) — better—
Positive reviews68.8% of reviews—
Number of ratings19 — better—
Update frequencyEvery 5 weeks — betterEvery 38 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better12.2
Further details — not scored
Size56 MB14 MB
Age rating9+4+
DeveloperPascal BestebroerAnthony Hindle

In-app purchases

None

Groundskeeper2

No in-app purchases

None

Sub Ninja

No in-app purchases

Questions

Is Groundskeeper2 free?
Groundskeeper2 costs $3.99, with no in-app purchases.
Is Sub Ninja free?
Sub Ninja costs $0.99, with no in-app purchases.
Do Groundskeeper2 or Sub Ninja have ads?
Neither Groundskeeper2 nor Sub Ninja shows ads.
Which is updated more often, Groundskeeper2 or Sub Ninja?
Groundskeeper2 ships an update every 5 weeks, and Sub Ninja every 38 months. Most recently, Groundskeeper2 was updated on October 4, 2026 and Sub Ninja on October 4, 2026.

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