# Developer Laboratory vs P 4.0 SOLUTION

The clearest difference is price: P 4.0 SOLUTION at Free against Developer Laboratory's $0.99. P 4.0 SOLUTION also leads on in-app purchases (none vs 8). Developer Laboratory's advantage is iOS requirement (12.0 vs 14.1). On ads and device support there is nothing between them.

P 4.0 SOLUTION is free to download; Developer Laboratory costs $0.99 up front. Developer Laboratory sells 8 one-off in-app purchases. P 4.0 SOLUTION asks for nothing beyond the download.

## The numbers

| Metric | Developer Laboratory | P 4.0 SOLUTION |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/developer-laboratory/id1568656582/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Free | — |
| Size | 9 MB | 46 MB |
| Requires iOS | **12.0** | 14.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [恒盛 程](https://appshunter.io/developer/1533201832) | [ECODYGER SRL SOCIETA  BENEFIT](https://appshunter.io/developer/1579342790) |

## What reviewers say

### Developer Laboratory

[App page](https://appshunter.io/ios/app/developer-laboratory/id1568656582)

This app provides a collection of example code and UI components for iOS developers. It demonstrates various functionalities like app icon creation, image viewing, web page loading, and custom controls. Access the source code to learn implementation details.

**Highlights:** APP icon creation, Imitation of WeChat Moments, Web page loading, Custom UI components, QR code scanning, Facial tracking, Database operations

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0 ice cola | $0.99 | one-time |
| 1 ice cola | $0.99 | one-time |
| A sip of iced cola | $0.99 | one-time |
| 一元商品 | $0.99 | one-time |
| 2 ice cola | $1.99 | one-time |
| 3 ice cola | $2.99 | one-time |
| 4.16 ice cola | $3.99 | one-time |
| 16.5 ice cola | $14.99 | one-time |


### P 4.0 SOLUTION

[App page](https://appshunter.io/ios/app/p-40-solution/id1579342788)

**In-app purchases:** none


## Frequently asked questions

### Is Developer Laboratory free?

Developer Laboratory costs $0.99, and also offers in-app purchases.

### Is P 4.0 SOLUTION free?

P 4.0 SOLUTION is free to download, with no in-app purchases.

### Do Developer Laboratory or P 4.0 SOLUTION have ads?

Neither Developer Laboratory nor P 4.0 SOLUTION shows ads.

---

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