# Factory World vs Idle Island Builder

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.

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.

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.

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.

## The numbers

| Metric | Factory World | Idle Island Builder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (25K ratings)](https://appshunter.io/ios/app/factory-world/id1625677989/reviews) | **[4.7 (3.6K ratings)](https://appshunter.io/ios/app/idle-island-builder/id6670468867/reviews)** |
| Number of ratings | **25K** | 3.6K |
| Positive reviews | 30.9% of reviews | **48.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 349 MB | 280 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [AI Games FZ](https://appshunter.io/developer/1478916023) | [Solid Games](https://appshunter.io/developer/1625798412) |

## What reviewers say

### Factory World

[App page](https://appshunter.io/ios/app/factory-world/id1625677989)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small stack of tickets | $2.49 | one-time |
| Medium stack of tickets | $6.99 | one-time |
| No Ads in Idle Factory world | $9.99 | one-time |
| Special offer with tickets | $10.99 | one-time |
| Special offer | $11.99 | one-time |
| Big stack of tickets | $19.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Ads still appearing after purchasing ad removal
- Progress reset for some users after updates

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/idle-island-builder/id6670468867)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Diamond Pack 1 | $1.99 | one-time |
| Diamond Pack 2 | $4.99 | one-time |
| No Ads Lite | $4.99 | one-time |
| Diamond Pack 3 | $9.99 | one-time |
| No Ads MAX | $9.99 | one-time |
| Diamond Pack 4 | $19.99 | one-time |
| Diamond Pack 5 | $44.99 | one-time |
| Diamond Pack 6 | $99.99 | one-time |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- Trucks keep glitching

**Requested features**

- Reduce number of ads
- Add option to remove ads


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*