Comparison

Challenge Go vs Astro Invaders

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

Head to head
About

Challenge Go

Navigate diverse environments, from forests to space, by fighting through levels to reach the portal. Utilize items to overcome obstacles and progress through 100 challenging stages.

Highlights
  • Tile-based action/puzzle gameplay
  • Diverse environments (forests, space, ruins)
  • Item usage for progression
  • 100 challenging levels
  • Portal-based level progression
Features
Read full description

Challenge Go (aka Challengo / Ray's Challenge) is an action/puzzle game set in an expansive world, inspired by classic block-pushing games like Chip's Challenge and Sokoban. Originally released in 2006, it was quickly featured on the YoYoGames Sandbox where it went on to receive over 30,000 unique downloads. It has since gone through numerous major developments. The latest revamp adds touchscreen controls and sees its expansion to additional platforms. An online high-score system per level allows you to compete against others for the best time. Secrets galore including cheat codes and hidden areas. The goal in Challenge Go is simple: fight your way through each level to the portal to reach the next area. Get lost in forests, swamps, deserts. Walk over the sky in ever-changing weather and light, and even navigate the depths of space. Sneak through cursed ruins, war zones, dark labyrinths and haunted houses. Use items to run faster, open doors, pass hazards, and destroy. 100 levels total to challenge even the most dexterous.

About

Astro Invaders

Experience an intense arcade space battle with simple controls. Upgrade your ship to rapidly grow stronger and defeat challenging bosses. Uncover a lasting story through 21 boss encounters.

Highlights
  • Simple movement and shooting controls
  • Intense space battles
  • Ship upgrades for rapid growth
  • 21 boss battles
  • Uncover a lasting story
  • Casual action and rail shooter mechanics
Features
Read full description

● Dodge While Moving, Shoot While Standing Still ! An Intense Space Battle Unfolds With Simple Controls! This Is A Fresh New Arcade Shooter That Avoids Maniac-Level Bullet Hell And Instead Borrows The Best Of Trendy Casual Action Games And Classic Rail Shooter Mechanics. ● The Thrill Of Rapid Growth Through Upgrades ! Upgrade Your Ship, Crush The Bosses You Once Struggled Against In An Instant, And Gather Bits For Even Faster Upgrades ! ● Fast-Paced, Impactful Gameplay With A Lasting Story. A Tight Experience Packed With 21 Boss Battles And No Filler Enemy Fights—Only Those Who Reach The Ending Will Uncover The Story Behind The Game !

Screenshots

Challenge Go4 screens
Astro Invaders4 screens

Verdict

The call

The clearest difference is in-app purchases: Challenge Go at none against Astro Invaders's 6. Challenge Go also leads on ads (none vs shown) and iOS requirement (10 vs 13.0). On price, rating, ratings volume and update cadence 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. Astro Invaders sells 6 one-off in-app purchases. Challenge Go 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 Challenge Go against 5.0 for Astro Invaders. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Challenge Go ships an update every 10 days, Astro Invaders weekly. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

Scorecard4 real differences · 6 level
Challenge Go versus Astro Invaders: the parameters behind the verdict, then further details
ParameterChallenge GoAstro Invaders
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 10 daysWeekly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS10 — better13.0
Further details — not scored
Size188 MB110 MB
Age rating4+9+
DeveloperConnor HawkeSang Yoon Lee

Customer experience

Challenge Go

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

Astro Invaders

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Challenge Go

No in-app purchases

6 purchases

Astro Invaders

One-time6
  • Unlimited Ad Skip$0.99
  • 10000 Bit Pack$0.99
  • Super Bit Pack$1.99
Show 3 more
  • Mega Bit Pack$2.99
  • 50000 Bit Pack$2.99
  • 150000 Bit Pack$4.99

Questions

Is Challenge Go free?
Challenge Go is free to download, with no in-app purchases.
Is Astro Invaders free?
Astro Invaders is free to download, with in-app purchases available.
Which has better reviews, Challenge Go or Astro Invaders?
Challenge Go and Astro Invaders are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Challenge Go or Astro Invaders have ads?
Astro Invaders shows ads; Challenge Go does not.
Which is updated more often, Challenge Go or Astro Invaders?
Challenge Go ships an update every 10 days, and Astro Invaders weekly. Most recently, Challenge Go was updated on October 3, 2026 and Astro Invaders on October 2, 2026.

Other comparisons