# 코딩챌린지 vs Techtalk

The clearest difference is in-app purchases: Techtalk at none against 코딩챌린지's 3. 코딩챌린지's advantage is update cadence (every 6 days vs every 2 weeks) and iOS requirement (11.0 vs 14.0). On price, ads and device support there is nothing between them.

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

코딩챌린지 ships an update every 6 days, Techtalk every 2 weeks. The most recent releases landed on May 16, 2026 and August 10, 2026 respectively.

## The numbers

| Metric | 코딩챌린지 | Techtalk |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/techtalk-prep-tech-interview/id6478161786/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 52 MB | 71 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YOUNGKYUN KANG](https://appshunter.io/developer/1362410195) | [HaeJoo Lee](https://appshunter.io/developer/1671820199) |

## 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 |


### Techtalk

[App page](https://appshunter.io/ios/app/techtalk-prep-tech-interview/id6478161786)

Practice technical interviews with an AI interviewer, receiving detailed feedback. Learn programming concepts through video summaries and generated questions. Review mistakes with error notes and master topic-specific interview questions.

**Highlights:** AI mock chat interviews, Video content programming learning, Error review notes, Topic-based interview questions, Personalized feedback

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 코딩챌린지 free?

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

### Is Techtalk free?

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

### Do 코딩챌린지 or Techtalk have ads?

Neither 코딩챌린지 nor Techtalk shows ads.

### Which is updated more often, 코딩챌린지 or Techtalk?

코딩챌린지 ships an update every 6 days, and Techtalk every 2 weeks. Most recently, 코딩챌린지 was updated on May 16, 2026 and Techtalk on August 10, 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.*