# 장기도사 vs Blind tank

The clearest difference is price: Blind tank at Free against 장기도사's $5.99. Blind tank also leads on update cadence (every 2 days vs every 2 months) and iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Blind tank is free to download; 장기도사 costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

장기도사 ships an update every 2 months, Blind tank every 2 days. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | 장기도사 | Blind tank |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id489271306/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 61.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Size | 16 MB | 673 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kepler Tech](https://appshunter.io/developer/489271389) | [BAEK DONGKI](https://appshunter.io/developer/1864147569) |

## What reviewers say

### 장기도사

[App page](https://appshunter.io/ios/app/id489271306)

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

**In-app purchases:** none


### Blind tank

[App page](https://appshunter.io/ios/app/blind-tank/id6757004918)

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

**In-app purchases:** none


## Frequently asked questions

### Is 장기도사 free?

장기도사 costs $5.99, with no in-app purchases.

### Is Blind tank free?

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

### Do 장기도사 or Blind tank have ads?

Neither 장기도사 nor Blind tank shows ads.

### Which is updated more often, 장기도사 or Blind tank?

장기도사 ships an update every 2 months, and Blind tank every 2 days. Most recently, 장기도사 was updated on November 10, 2026 and Blind tank on November 9, 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.*