# 100ls vs CodeStudy

The clearest difference is in-app purchases: CodeStudy at none against 100ls's 3. CodeStudy also leads on update cadence (every 6 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 100ls sells 3 in-app purchases, starting at $4.99 per month. CodeStudy asks for nothing beyond the download.

100ls ships an update fortnightly, CodeStudy every 6 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 100ls | CodeStudy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 6 days** |
| Size | 15 MB | 4 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Socratop Tech](https://appshunter.io/developer/1815862937) | [ByeongYun In](https://appshunter.io/developer/1632990861) |

## What reviewers say

### 100ls

[App page](https://appshunter.io/ios/app/100ls/id6760612392)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100ls plus monthly | $4.99 | per month |
| 100ls plus yearly | $39.99 | per year |
| 100ls 终身会员 | $39.99 | one-time |


### CodeStudy

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

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

**In-app purchases:** none


## Frequently asked questions

### Is 100ls free?

100ls is free to download, with in-app purchases available.

### Is CodeStudy free?

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

### Do 100ls or CodeStudy have ads?

Neither 100ls nor CodeStudy shows ads.

### Which is updated more often, 100ls or CodeStudy?

100ls ships an update fortnightly, and CodeStudy every 6 days. Most recently, 100ls was updated on October 31, 2026 and CodeStudy on October 25, 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.*