Comparison

HARM Invaders vs OpenLock

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

Head to head
About

HARM Invaders

Command Earth's first space fighter to defend humanity from an alien threat originating from Mars. Engage in fast-paced 3D combat across the solar system, researching weapons and battling replicating alien machines.

Highlights
  • Real-time 3D graphics
  • Diverse enemy types
  • Dozens of weapons
  • Space ship 3D combat
  • Local & Global high-score tables
  • Rank system
Features
Read full description

The year is 2115 and an artificial repeating radio signal has been detected coming from the vicinity of Mars. You as commander of Earth's first and only Space Fighter are sent to investigate. On Arrival at Mars a huge electrical vortex is detected in orbit, from which spews a ‘Hungry Alien Replicating Machine’. The Alien Machines consume minerals from rocks to replicate. Commander, you must destroy the ‘HARM’ before they can reach Earth. Push them back out of our Solar System at all costs. Battle a relentless enemy that won’t stop until the Earth is consumed, in this fast paced action 3D shoot-em-up. Features of HARM Invaders:- * Real time 3d graphics, Using METAL on compatible devices * Many different types or replicating enemy * Dozens of weapons to research and use * Pause button for when the heat gets too hot. * Play across the entire Solar System * Space Ship 3D combat * Particle effects * Local & Global High-score table * Separate High-score table for your personal best * Rank system, rise to the rank of Grand Admiral of the Space fleet. * Works best on ipad2+ (Recommend iPad Air+) * Compatible with MFi Mad Catz Controller plus all iCade type controllers.

About

OpenLock

Features
Read full description

Get ready for non-stop action! In this fast-paced, casual game, you'll control a spinning arrow and blast targets that appear in random locations. Tap with precision to shatter them before they disappear, racking up points and unlocking achievements along the way. Master the challenge, customize your arrow with unique machines and power-ups, and see how far you can climb the endless score ladder. Perfect for quick bursts of excitement, Arrow Frenzy is the ultimate casual gamer's dream! Tap to smash targets as they pop up, conquer your high score, and unlock achievements. Experience endless fun with our store, which includes various gaming machines. Do you remember the casino jackpot open-lock? We will bring more than an open-lock. We re-made it infinity. That challenges your hand speed skills. This arcade game is better than tangled new games, you can get coin and buy power-ups and new game machines from in game store and get 1 or 2 more life and use them in your strategy to get better score. Only elites with more skills can get a good score. Play with your friends and, with more practice, show your friend who is the better and smarter. The development of genius and thinking better than artificial intelligence starts from here, In a world surrounded by AI, play an offline game in arcade style and train your brain to do more. OpenLock-Infinity

Screenshots

HARM Invaders4 screens
OpenLock4 screens

Verdict

The call

The clearest difference is in-app purchases: OpenLock at none against HARM Invaders's 4. OpenLock also leads on update cadence (every 8 months vs every 34 months). HARM Invaders's advantage is iOS requirement (8.0 vs 13.0). On price, ads 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. HARM Invaders sells 4 one-off in-app purchases. OpenLock asks for nothing beyond the download.

UpkeepUpdate frequency

HARM Invaders ships an update every 34 months, OpenLock every 8 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
HARM Invaders versus OpenLock: the parameters behind the verdict, then further details
ParameterHARM InvadersOpenLock
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 34 monthsEvery 8 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better13.0
Further details — not scored
Size158 MB78 MB
Age rating4+4+
DeveloperQED Gaming PTY. LtdKıyan SISAKHTI

In-app purchases

4 purchases

HARM Invaders

One-time4
  • 500 Research Machine Credits$0.99
  • 500 Brain Power$1.99
  • 2000 Brain Power$4.99
Show 1 more
  • 10000 Research Machine Credits$9.99
None

OpenLock

No in-app purchases

Questions

Is HARM Invaders free?
HARM Invaders is free to download, with in-app purchases available.
Is OpenLock free?
OpenLock is free to download, with no in-app purchases.
Do HARM Invaders or OpenLock have ads?
Neither HARM Invaders nor OpenLock shows ads.
Which is updated more often, HARM Invaders or OpenLock?
HARM Invaders ships an update every 34 months, and OpenLock every 8 months. Most recently, HARM Invaders was updated on November 1, 2026 and OpenLock on November 4, 2026.

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