Comparison

Factory World vs Idle Island Builder

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

Head to head
About

Factory World

Build and manage your own industrial empire by tapping to buy land and connect production chains. Develop various factories, from oil wells to toy production, to earn idle profit even when offline. Strategize your business growth to become a manufacturing tycoon.

Highlights
  • Tap to buy land tiles
  • Connect production chains
  • Develop various factories
  • Earn idle profit offline
  • Business strategy development
  • Simple tap controls
Features
Read full description

This game is very easy to control and incredibly enjoyable to play. Just tap on land tiles to buy them. Be sure to look for production properties - they connect into production chains and begin to earn you money. Build your first tap tap factory and develop your business strategy of idle factory management in the new best manager game. Become the head of the factories inc. Develop your own oil wells factory, get into idle digging and idle factory business. Build toy factory, dig deep for mining, buy territory for industry development. Connect roads to make manufacturing work and develop your industry! Produce any goods you want, become a business tycoon and receive idle profit in the new challenging factory simulator game Factory World! Game features: - Addictive gameplay - Wide chain of game mechanics - Your industry gets idle cash even when you are offline - Beautiful animation - Simple controls - A lot of biomes producing unique products - Exciting gaming sessions Start your money making business in the one of the beautiful and relaxing games!

About

Idle Island Builder

Build your dream island paradise from the sea. Reclaim land, cultivate lush landscapes with trees, and construct magnificent buildings to create a vibrant, living island. Enjoy tranquil ocean beauty and unleash your creativity in this captivating idle game.

Highlights
  • Reclaim land from the sea
  • Craft lush green landscapes
  • Construct magnificent buildings
  • Create a bustling island
  • Intuitive idle gameplay
  • Tranquil ocean beauty
Features
Read full description

Dive into the ultimate relaxation of island building in this captivating casual game! Start by reclaiming the sea and crafting your own paradise from scratch. Transform the watery expanse into lush green landscapes adorned with trees, and construct magnificent buildings to create a bustling island full of life. With simple and intuitive gameplay, immerse yourself in the tranquil beauty of the ocean as you shape and expand your dream island. Unleash your creativity and build the perfect haven in this delightful and addictive idle game!

Screenshots

Factory World4 screens
Idle Island Builder4 screens

Verdict

The call

Factory World and Idle Island Builder both sit at 4.7 stars, but that hides the real split: 49% of Idle Island Builder's written reviews are positive against 31% of Factory World's. Factory World's advantage is update cadence (every 2 months vs every 5 months) and ratings volume (25K vs 3.6K). On price, rating, ads and in-app purchases 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. Factory World sells 6 one-off in-app purchases and Idle Island Builder sells 8 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 Factory World against 4.7 for Idle Island Builder. That said, the two scores are not equally well evidenced: Factory World has 25K ratings behind it against 3.6K, so its average is the more settled of the two. Written reviews are what separate them: 31% of Factory World's written reviews are positive against 49% of Idle Island Builder's.

UpkeepUpdate frequency

Factory World ships an update every 2 months, Idle Island Builder every 5 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Factory World versus Idle Island Builder: the parameters behind the verdict, then further details
ParameterFactory WorldIdle Island Builder
PriceFreeFree
Rating4.7 (25K ratings)4.7 (3.6K ratings) — better
Positive reviews30.9% of reviews48.6% of reviews — better
Number of ratings25K — better3.6K
Update frequencyEvery 2 months — betterEvery 5 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size349 MB280 MB
Age rating12+4+
DeveloperAI Games FZSolid Games

Customer experience

Factory World

All ratings24,717 ratings
Positive92.2%
Neutral3.8%
Negative4.0%
Written reviews340 reviews
Positive30.9%
Neutral10.6%
Negative58.5%

Idle Island Builder

All ratings3,325 ratings
Positive93.5%
Neutral3.9%
Negative2.6%
Written reviews74 reviews
Positive48.6%
Neutral9.5%
Negative41.9%

User reviews

Factory World

From 25K App Store ratings

What we love

  • 🚀 Relaxing game
  • 🎨 Great graphics and animations
  • 👍 Fun and addictive gameplay
  • 💰 Decent offline earnings

Room to improve

  • 🔍 Repetitive gameplay with little variety
  • 🔥 Excessive ads that interrupt gameplay
  • 💰 Expensive ad removal option
  • 🐛 Inconsistent offline earnings
  • 🔚 Lack of content after completing the map

Idle Island Builder

From 3.6K App Store ratings

What we love

  • 👍 Fun and entertaining
  • 👍 Easy to start
  • 👍 Good game detail
  • 👍 Ability to make own island

Room to improve

  • 🚫 Too many forced ads
  • 🚫 Ads after every 20 seconds
  • 🚫 Ads interrupt gameplay
  • 🐛 Trucks keep glitching

Bugs and requests

Factory World

Reported bugs

2 issues
  • Ads still appearing after purchasing ad removal
  • Progress reset for some users after updates

Requested features

4 requests
  • More levels and regions to explore
  • Ability to restart or reset the game
  • More strategic depth and customization options
  • Improved offline earnings calculation

Idle Island Builder

Reported bugs

1 issue
  • Trucks keep glitching

Requested features

2 requests
  • Reduce number of ads
  • Add option to remove ads

In-app purchases

6 purchases

Factory World

One-time6
  • Small stack of tickets$2.49
  • Medium stack of tickets$6.99
  • No Ads in Idle Factory world$9.99
Show 3 more
  • Special offer with tickets$10.99
  • Special offer$11.99
  • Big stack of tickets$19.99
8 purchases

Idle Island Builder

One-time8
  • Diamond Pack 1$1.99
  • Diamond Pack 2$4.99
  • No Ads Lite$4.99
Show 5 more
  • Diamond Pack 3$9.99
  • No Ads MAX$9.99
  • Diamond Pack 4$19.99
  • Diamond Pack 5$44.99
  • Diamond Pack 6$99.99

Questions

Is Factory World free?
Factory World is free to download, with in-app purchases available.
Is Idle Island Builder free?
Idle Island Builder is free to download, with in-app purchases available.
Which has better reviews, Factory World or Idle Island Builder?
Idle Island Builder is rated higher. Factory World averages 4.7 out of 5 from 25K ratings, while Idle Island Builder averages 4.7 from 3.6K ratings.
Do Factory World or Idle Island Builder have ads?
Both Factory World and Idle Island Builder show ads.
Which is updated more often, Factory World or Idle Island Builder?
Factory World ships an update every 2 months, and Idle Island Builder every 5 months. Most recently, Factory World was updated on November 1, 2026 and Idle Island Builder on October 30, 2026.

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