# CodeStudy vs ENside

The clearest difference is in-app purchases: CodeStudy at none against ENside's 1. CodeStudy also leads on ads (none vs shown). ENside's advantage is iOS requirement (15.0 vs 18.0). On price, update cadence and device support there is nothing between them.

Both are free to download. ENside sells 1 one-off in-app purchase. CodeStudy asks for nothing beyond the download.

CodeStudy ships an update every 6 days, ENside every 9 days. The most recent releases landed on October 11, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | CodeStudy | ENside |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 days** | Every 9 days |
| Size | 4 MB | 174 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [ByeongYun In](https://appshunter.io/developer/1632990861) | [YURI KOTENIATKIN](https://appshunter.io/developer/6775286848) |

## What reviewers say

### CodeStudy

[App page](https://appshunter.io/ios/app/codestudy-ai-coding-tutor/id6762127373)

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

**In-app purchases:** none


### ENside

[App page](https://appshunter.io/ios/app/enside-english-flashcards/id6775286846)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is CodeStudy free?

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

### Is ENside free?

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

### Do CodeStudy or ENside have ads?

ENside shows ads; CodeStudy does not.

### Which is updated more often, CodeStudy or ENside?

CodeStudy ships an update every 6 days, and ENside every 9 days. Most recently, CodeStudy was updated on October 11, 2026 and ENside on October 17, 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.*