# 一問から身につく SQL vs DP

The clearest difference is in-app purchases: 一問から身につく SQL at none against DP's 1. DP's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.6). On price and ads there is nothing between them.

Both are free to download. DP sells 1 one-off in-app purchase. 一問から身につく SQL asks for nothing beyond the download.

## The numbers

| Metric | 一問から身につく SQL | DP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 1 MB | 165 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RYUJI ADACHI](https://appshunter.io/developer/1877885263) | [CHOI SEONGMIN](https://appshunter.io/developer/6772332527) |

## What reviewers say

### 一問から身につく SQL

[App page](https://appshunter.io/ios/app/sql/id6760984838)

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

**In-app purchases:** none


### DP

[App page](https://appshunter.io/ios/app/dp-300-sql-solutions-exam-prep/id6782107643)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DP-300 Lifetime Access | $4.99 | one-time |


## Frequently asked questions

### Is 一問から身につく SQL free?

一問から身につく SQL is free to download, with no in-app purchases.

### Is DP free?

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

### Do 一問から身につく SQL or DP have ads?

Neither 一問から身につく SQL nor DP shows ads.

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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.*