# CS사전 vs Tech Interview

The clearest difference is update cadence: CS사전 at every 2 days against Tech Interview's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CS사전 ships an update every 2 days, Tech Interview every 7 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CS사전 | Tech Interview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 7 months |
| Size | 12 MB | 19 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [dongseok ju](https://appshunter.io/developer/1592949836) | [CHANG HWAN JUNG](https://appshunter.io/developer/1827947627) |

## What reviewers say

### CS사전

[App page](https://appshunter.io/ios/app/cs/id6480402361)

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

**In-app purchases:** none


### Tech Interview

[App page](https://appshunter.io/ios/app/tech-interview/id6751677819)

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

**In-app purchases:** none


## Frequently asked questions

### Is CS사전 free?

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

### Is Tech Interview free?

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

### Do CS사전 or Tech Interview have ads?

Neither CS사전 nor Tech Interview shows ads.

### Which is updated more often, CS사전 or Tech Interview?

CS사전 ships an update every 2 days, and Tech Interview every 7 months. Most recently, CS사전 was updated on October 27, 2026 and Tech Interview on October 28, 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.*