# Factory 4.0 vs K

The clearest difference is in-app purchases: K at none against Factory 4.0's 11. K also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). Factory 4.0's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Factory 4.0 sells 11 one-off in-app purchases. K asks for nothing beyond the download.

Factory 4.0 ships an update every 3 weeks, K every 2 days. The most recent releases landed on October 28, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Factory 4.0 | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (31 ratings)](https://appshunter.io/ios/app/factory-40/id1458569617/reviews)** | — |
| Number of ratings | **31** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 351 MB | 60 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [vmoga](https://appshunter.io/developer/945300832) | [Jehyun Park](https://appshunter.io/developer/6797298699) |

## What reviewers say

### Factory 4.0

[App page](https://appshunter.io/ios/app/factory-40/id1458569617)

Build a toy factory startup and grow your business into a global corporation. Produce various items, upgrade production lines, and hire managers to increase income and accelerate growth. Reset progress for significant bonuses.

**Highlights:** Idle gameplay with offline earnings, Build and manage a duck toy factory, Produce 20 different types of products, Hire managers to automate production, Use boosts for faster income, Reset progress for bonuses

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fistful Of Gems | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Special Offer 1 | $4.99 | one-time |
| Special Offer 2 | $9.99 | one-time |
| Diamond Pack 3 Promo | $9.99 | one-time |
| Special Offer Presale 4 | $11.99 | one-time |
| Special Offer 3 | $19.99 | one-time |
| Diamond Pack 4 Promo | $19.99 | one-time |
| Special Offer Presale 5 | $24.99 | one-time |
| Special Offer Presale 3 | $39.99 | one-time |
| Special Offer Presale 6 | $49.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-affeine-who-ordered-this/id6797298697)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Factory 4.0 free?

Factory 4.0 is free to download, with in-app purchases available.

### Is K free?

K is free to download, with no in-app purchases.

### Do Factory 4.0 or K have ads?

Factory 4.0 shows ads; K does not.

### Which is updated more often, Factory 4.0 or K?

Factory 4.0 ships an update every 3 weeks, and K every 2 days. Most recently, Factory 4.0 was updated on October 28, 2026 and K on October 19, 2026.

---

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