Comparison

Car Assembly Simulator vs Idle Mars Survival

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

Head to head
About

Car Assembly Simulator

Experience the intricate process of vehicle manufacturing. Assemble a car from its smallest components, build and transport parts, and meticulously add accessories to complete the final product.

Highlights
  • Assemble car body
  • Add various accessories
  • Build and carry parts
  • Step-by-step assembly process
  • Component-based construction
Features
Read full description

How was a car assembled? Starting from the first small part, build parts, carry parts, and assemble parts. Complete the body first, and then assemble various accessories until one car is assembled.

About

Idle Mars Survival

Survive and build a thriving colony on Mars as a stranded astronaut. Generate power, secure resources, expand your base, produce oxygen, and defend against alien spores. Recruit companions and utilize simulation and RPG elements to establish a successful Martian settlement.

Highlights
  • Generate power and secure resources
  • Expand base and recruit astronauts
  • Produce oxygen for colonization
  • Defend against spore invasions
  • Combine simulation and RPG elements
  • Explore map for mineral resources
Features
Read full description

As an astronaut stranded on Mars, your main objective is to survive and thrive in this challenging game. Here's a guide on how to survive: Generate Power: Maintaining various devices is crucial, so you need to find a way to generate electricity. This can be achieved through solar panels, wind turbines, or other power sources available on Mars. Secure Resources: You must find food, water, and other essential supplies to sustain yourself. Explore the surroundings to gather resources like plants, minerals, and water deposits. Develop strategies to extract and store these resources efficiently. Expand Your Base: As you progress, expand your base to accommodate more survivors. This involves constructing additional structures, living quarters, and facilities to support the growing population. Each survivor brings unique skills and abilities, so recruit more astronauts to enhance your chances of survival. Produce Oxygen: Develop systems to produce sufficient amounts of oxygen to support the colonization plan. This can be achieved through the cultivation of plants or the utilization of oxygen-generating equipment. Defend Against Spore Invasions: Mars is inhabited by dangerous spores that can harm both humans and infrastructure. Build defensive structures and implement countermeasures to protect your base from spore invasions. Research and develop new technologies to improve your defenses. Remember, perseverance and resource management are key to your survival. Good luck in your journey to establish a successful colony on Mars! Features: 1.Combination of simulation (SIM) and light role-playing game (RPG) elements. 2.Simple and relaxed 2D graphics style. 3.Explore the map to collect various mineral resources. 4.Construct defensive fortifications to fend off spore invasions. 5.Recruit more astronauts as companions to aid in your survival.

Screenshots

Car Assembly Simulator4 screens
Idle Mars Survival4 screens

Verdict

The call

The clearest difference is update cadence: Idle Mars Survival at every 2 weeks against Car Assembly Simulator's every 2 months. Idle Mars Survival also leads on review sentiment (35% vs 20%). Car Assembly Simulator's advantage is iOS requirement (12.0 vs 15.0). On price, rating, ratings volume and ads 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. Car Assembly Simulator sells 10 one-off in-app purchases and Idle Mars Survival sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Car Assembly Simulator against 4.6 for Idle Mars Survival. Both are backed by a comparable volume of ratings — 1.3K and 1.5K respectively. Written reviews are what separate them: 20% of Car Assembly Simulator's written reviews are positive against 35% of Idle Mars Survival's.

UpkeepUpdate frequency

Car Assembly Simulator ships an update every 2 months, Idle Mars Survival every 2 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Car Assembly Simulator versus Idle Mars Survival: the parameters behind the verdict, then further details
ParameterCar Assembly SimulatorIdle Mars Survival
PriceFreeFree
Rating4.7 (1.3K ratings) — better4.6 (1.5K ratings)
Positive reviews20.5% of reviews35.0% of reviews — better
Number of ratings1.3K1.5K — better
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size211 MB364 MB
Age rating4+4+
DeveloperSolid GamesOneorwa Technology Co.,Ltd.

Customer experience

Car Assembly Simulator

All ratings1,038 ratings
Positive90.8%
Neutral4.9%
Negative4.3%
Written reviews83 reviews
Positive20.5%
Neutral6.0%
Negative73.5%

Idle Mars Survival

All ratings1,492 ratings
Positive90.8%
Neutral5.1%
Negative4.2%
Written reviews234 reviews
Positive35.0%
Neutral15.4%
Negative49.6%

User reviews

Car Assembly Simulator

From 1.3K App Store ratings

What we love

  • 👍 Fun game
  • 🚀 Game is easy to play

Room to improve

  • 🗣️ Too many ads
  • 💢 Forced ad breaks
  • 🔍 Ads even after purchase
  • ⏱️ Ads every minute

Idle Mars Survival

From 1.5K App Store ratings

What we love

  • 🚀 Engaging gameplay
  • 👍 Addictive and fun
  • 🚀 Smooth performance
  • 💡 Creative concept

Room to improve

  • 🐛 Frequent crashes
  • 🔋 Drains battery quickly
  • 🔒 Lack of customer support
  • 🔒 Buggy and glitchy
  • 💰 Monetization issues

Bugs and requests

Car Assembly Simulator

Reported bugs

2 issues
  • Glass counter not working properly
  • Missions still say 'get to level 10' even after reaching level 10

Requested features

2 requests
  • Remove forced ad breaks
  • Reduce frequency of ads

Idle Mars Survival

Reported bugs

5 issues
  • Incorrect resource calculations
  • Stuck on second planet with no way to progress
  • In-app purchases not working as expected
  • Freezing and crashing issues
  • Oxygen/resource production imbalance

Requested features

5 requests
  • Ability to move buildings
  • Improved resource balancing
  • Notifications for resource collection
  • Cloud save/sync across devices
  • Ability to listen to own music

In-app purchases

10 purchases

Car Assembly Simulator

One-time10
  • Contains 10 Ad tickets$0.99
  • Contains 25 Ad tickets$1.99
  • Diamond Pack 1$1.99
Show 7 more
  • Contains 60 Ad tickets$3.99
  • No Ads Lite$4.99
  • Sign-in rewards$4.99
  • Equipment manager$4.99
  • Diamond Pack 2$4.99
  • No Ads Plus$9.99
  • Diamond Pack 3$9.99
10 purchases

Idle Mars Survival

One-time10
  • Novice gift$0.99
  • 80 Power Stones$0.99
  • 500 Power Stones$4.99
Show 7 more
  • Festival Gift No.1$4.99
  • Festival Gift No.4$4.99
  • Ad-free$9.99
  • Caretaker$9.99
  • 1200 Power Stones$9.99
  • Luxury gift package$14.99
  • 2500 Power Stones$19.99

Questions

Is Car Assembly Simulator free?
Car Assembly Simulator is free to download, with in-app purchases available.
Is Idle Mars Survival free?
Idle Mars Survival is free to download, with in-app purchases available.
Which has better reviews, Car Assembly Simulator or Idle Mars Survival?
Car Assembly Simulator is rated higher. Car Assembly Simulator averages 4.7 out of 5 from 1.3K ratings, while Idle Mars Survival averages 4.6 from 1.5K ratings.
Do Car Assembly Simulator or Idle Mars Survival have ads?
Both Car Assembly Simulator and Idle Mars Survival show ads.
Which is updated more often, Car Assembly Simulator or Idle Mars Survival?
Car Assembly Simulator ships an update every 2 months, and Idle Mars Survival every 2 weeks. Most recently, Car Assembly Simulator was updated on November 3, 2026 and Idle Mars Survival on November 5, 2026.

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