Comparison

Iron Prototype vs Space Defender

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

Head to head
About

Iron Prototype

Become a superhero in this action-packed side-scrolling runner. Swing through diverse worlds using a rope hook, dodge deadly hazards, and collect power cells to unlock new characters. Are you ready for the ultimate spider hero adventure?

Highlights
  • Side-scrolling runner gameplay
  • Rope hook swinging mechanic
  • Diverse world exploration
  • Hazard dodging
  • Unlockable superhero characters
  • Power cell collection
Features
Read full description

Step into the shoes of an iconic spider hero prototype in this action-packed, side-scrolling runner! Play as a powerful prototype robot, a true superhero powered by a state of the art engine, and swing through stunning environments on your quest to become the ultimate spider hero. - Explore Super Diverse Worlds Race through beautifully crafted biomes, from lush tropical forests and icy mountain peaks to fiery volcanoes, floating sky islands, and the vast reaches of outer space. Each supercharged environment is filled with unique challenges that will test your hero skills to the max. - Master the Spider Hero Swing and Rope Hook Embrace your inner spider hero by mastering the rope hook, an iconic tool that lets you grab onto ledges, swing over dangerous gaps, and even latch onto birds to propel yourself forward. This super ability is key to your survival and becoming the ultimate superhero in this fast-paced adventure. - Dodge Super Deadly Hazards Outmaneuver relentless plasma cannons, avoid molten lava, and leap over treacherous gaps as you sprint through each level. Only a true spider hero can survive the intense action and claim victory. - Collect Power Cells and Unlock Superhero Characters As you navigate each world, collect power cells to unlock a variety of unique superhero characters, each with their own iconic skins. Customize your spider hero prototype and stand out as you take on the toughest challenges. Are you ready to swing, dodge, and run your way to victory as the ultimate spider hero prototype? Download now and experience the supercharged, adrenaline-pumping action in this epic superhero adventure!

About

Space Defender

Features
Read full description

The frontier is falling. Hold the line. A top-down space shooter with real RPG progression, built for touch. Lead a squadron, take contracts and live a story told over the radio, voiced in six languages. A STORY IN FOUR ACTS Fly for Admiral Voss and Ilse Marin through three galaxies at war, then on to Kepler, the abandoned mining world of Act IV: gravity wells that pull everything in, descents into dark shafts and the port of Ferrum. Several endings wait at the end. YOUR SHIP, YOUR SQUADRON • 17 ships and over 60 pieces of equipment • Up to three wingmen who answer your orders on the radio • Pirate captains to spare, enlist or shoot down • Research, crew, mining, trade and salvage A LIVING GALAXY Dock at the spaceports for the bar, Command and the arcade room. Cross asteroid belts, minefields and magnetic storms. PLAY YOUR WAY • Touch controls or a controller, plays offline • Free to try: the whole first act, then one purchase unlocks the full game • No ads, no subscription • English, French, German, Spanish, Russian and Simplified Chinese Made by Petit Vaisseau, a one-person studio in France.

Screenshots

Iron Prototype4 screens
Space Defender4 screens

Verdict

The call

The clearest difference is ads: Space Defender at none against Iron Prototype's shown. Space Defender also leads on update cadence (daily vs monthly) and review sentiment (100% vs 71%). Iron Prototype's advantage is iOS requirement (13.0 vs 15.0). On price, 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

Both are free to download. Iron Prototype sells 1 one-off in-app purchase and Space Defender sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Iron Prototype ships an update monthly, Space Defender daily. The most recent releases landed on October 30, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Iron Prototype versus Space Defender: the parameters behind the verdict, then further details
ParameterIron PrototypeSpace Defender
PriceFreeFree
Rating3.9 (21 ratings) — better—
Positive reviews71.4% of reviews100.0% of reviews — better
Number of ratings21 — better—
Update frequencyMonthlyDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size390 MB1.2 GB
Age rating4+9+
DeveloperBad Wolf GamesGuillaume Merle

Customer experience

Iron Prototype

All ratings10 ratings
Positive80.0%
Neutral10.0%
Negative10.0%
Written reviews14 reviews
Positive71.4%
Neutral7.1%
Negative21.4%

Space Defender

Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Iron Prototype

One-time1
  • Remove Ads and bonus$5.99
1 purchases

Space Defender

One-time1
  • Full game$4.99

Questions

Is Iron Prototype free?
Iron Prototype is free to download, with in-app purchases available.
Is Space Defender free?
Space Defender is free to download, with in-app purchases available.
Do Iron Prototype or Space Defender have ads?
Iron Prototype shows ads; Space Defender does not.
Which is updated more often, Iron Prototype or Space Defender?
Iron Prototype ships an update monthly, and Space Defender daily. Most recently, Iron Prototype was updated on October 30, 2026 and Space Defender on November 3, 2026.

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