ASTRU vs Challenge Go
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
ASTRU
A physics-based puzzle game where players must guide an object to a target using celestial forces. Navigate through levels with unique gravitational and orbital mechanics to achieve accuracy and creativity.
- Celestial force mechanics
- Physics-based puzzles
- Orbital objects
- Target-based levels
- Creative problem-solving
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Inspired by movements of planets and stars, ASTRU is a game that rewards creativity and accuracy. Your goal is to reach the target in every level but it is never that simple, with objects that push and pull you, and some even orbiting around, you will have to use all these forces to your advantage.
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.
- Tile-based action/puzzle gameplay
- Diverse environments (forests, space, ruins)
- Item usage for progression
- 100 challenging levels
- Portal-based level progression
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: Challenge Go at none against ASTRU's 1. Challenge Go also leads on iOS requirement (10 vs 12.0). ASTRU's advantage is update cadence (every 5 days vs every 10 days). On price, rating, review sentiment and ratings volume 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
Both are free to download. ASTRU sells 1 one-off in-app purchase. Challenge Go asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for ASTRU against 5.0 for Challenge Go. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
ASTRU ships an update every 5 days, Challenge Go every 10 days. The most recent releases landed on October 14, 2026 and October 20, 2026 respectively.
| Parameter | ASTRU | Challenge Go |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 5 days — better | Every 10 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 12.0 | 10 — better |
| Further details — not scored | ||
| Size | 102 MB | 188 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamed Elmejrab | Connor Hawke |
Customer experience
ASTRU
Challenge Go
In-app purchases
ASTRU
- Unlimited Lives$1.99
Challenge Go
No in-app purchases
