# P 4.0 SOLUTION vs SQL Guide

P 4.0 SOLUTION and SQL Guide are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | P 4.0 SOLUTION | SQL Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sql-guide/id6756755155/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 46 MB | 21 MB |
| Requires iOS | **14.1** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [ECODYGER SRL SOCIETA  BENEFIT](https://appshunter.io/developer/1579342790) | [婉媚 邵](https://appshunter.io/developer/1297240696) |

## What reviewers say

### P 4.0 SOLUTION

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

**In-app purchases:** none


### SQL Guide

[App page](https://appshunter.io/ios/app/sql-guide/id6756755155)

Learn SQL step-by-step with short chapters, interactive quizzes, and a practical reference library. Designed for beginners and those refreshing their skills, it covers core concepts and query patterns with clear explanations and progress tracking.

**Highlights:** Short, focused chapters, Interactive quizzes with explanations, Practical SQL reference library, Bookmark and progress tracking, Structured curriculum from basics, No account or login required

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

**In-app purchases:** none


## Frequently asked questions

### Is P 4.0 SOLUTION free?

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

### Is SQL Guide free?

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

### Do P 4.0 SOLUTION or SQL Guide have ads?

Neither P 4.0 SOLUTION nor SQL Guide shows ads.

---

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