# CNCERT vs 들락 (Dlock)

The clearest difference is ads: CNCERT at none against 들락 (Dlock)'s shown. CNCERT also leads on update cadence (every 2 days vs every 5 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CNCERT ships an update every 2 days, 들락 (Dlock) every 5 days. The most recent releases landed on September 10, 2026 and August 1, 2026 respectively.

## The numbers

| Metric | CNCERT | 들락 (Dlock) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 38.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 5 days |
| Monetization | — | Free |
| Size | 19 MB | 90 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CNCITY energy Co., LTD.](https://appshunter.io/developer/1201662678) | [Seonhyo Kim](https://appshunter.io/developer/1724612424) |

## What reviewers say

### CNCERT

[App page](https://appshunter.io/ios/app/cncert/id1496098399)

**Features:** macOS Compatibility

**In-app purchases:** none


### 들락 (Dlock)

[App page](https://appshunter.io/ios/app/dlock/id6475640224)

Start your day with 5 minutes of reading to combat dopamine addiction. AI scores your literacy daily and ranks you nationally. Begin your journey to a clearer mind today.

**Highlights:** 5-minute daily reading sessions, AI literacy scoring, National ranking, Dopamine addiction management, Clearer mind focus

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CNCERT free?

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

### Is 들락 (Dlock) free?

들락 (Dlock) is free to download, with no in-app purchases.

### Do CNCERT or 들락 (Dlock) have ads?

들락 (Dlock) shows ads; CNCERT does not.

### Which is updated more often, CNCERT or 들락 (Dlock)?

CNCERT ships an update every 2 days, and 들락 (Dlock) every 5 days. Most recently, CNCERT was updated on September 10, 2026 and 들락 (Dlock) on August 1, 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.*