# 코딩챌린지 vs SQL query

The clearest difference is in-app purchases: SQL query at none against 코딩챌린지's 3. 코딩챌린지's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 코딩챌린지 sells 3 in-app purchases, starting at $1.99 per month. SQL query asks for nothing beyond the download.

코딩챌린지 ships an update every 6 days, SQL query weekly. The most recent releases landed on May 16, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | 코딩챌린지 | SQL query |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Weekly |
| Size | 52 MB | 29 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YOUNGKYUN KANG](https://appshunter.io/developer/1362410195) | [Hee Seong Kim](https://appshunter.io/developer/1764190060) |

## What reviewers say

### 코딩챌린지

[App page](https://appshunter.io/ios/app/id1625309702)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1개월 광고제거 | $1.99 | per month |
| 3개월 광고제거 | $2.99 | per 3 months |
| 1년 광고제거 | $7.99 | per year |


### SQL query

[App page](https://appshunter.io/ios/app/sql-query-sql/id6443757218)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 코딩챌린지 free?

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

### Is SQL query free?

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

### Do 코딩챌린지 or SQL query have ads?

SQL query shows ads; 코딩챌린지 does not.

### Which is updated more often, 코딩챌린지 or SQL query?

코딩챌린지 ships an update every 6 days, and SQL query weekly. Most recently, 코딩챌린지 was updated on May 16, 2026 and SQL query on September 13, 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.*