# 国語海賊〜1年生編〜完全版 vs K

The clearest difference is review sentiment: 国語海賊〜1年生編〜完全版 at 100% against K's 0%. 国語海賊〜1年生編〜完全版 also leads on iOS requirement (11.0 vs 17.0). K's advantage is update cadence (every 2 weeks vs every 15 months) and price ($0.99 vs $4.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

国語海賊〜1年生編〜完全版 costs $4.99 and K $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

国語海賊〜1年生編〜完全版 ships an update every 15 months, K every 2 weeks. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 国語海賊〜1年生編〜完全版 | K |
| --- | --- | --- |
| Price | $4.99 | **$0.99** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 15 months | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Size | 582 MB | 4 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Fantamstick](https://appshunter.io/developer/563146308) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### 国語海賊〜1年生編〜完全版

[App page](https://appshunter.io/ios/app/1/id1485833747)

Master all 80 first-grade Japanese kanji through engaging pirate-themed games. Collect pirate cards and treasures as you learn, making memorization fun and effective for young learners.

**Highlights:** Learn 80 first-grade kanji, Engaging pirate-themed games, Collect pirate cards and treasures, Automatic progress reports, No difficult rules, Effective for struggling learners

**Features:** macOS Compatibility

**In-app purchases:** none


### K

[App page](https://appshunter.io/ios/app/k-mol-molecular-model/id6772762907)

Create and visualize 2D and 3D molecular models with intuitive drawing tools and AR capabilities. This app serves as a practical and cost-effective alternative to physical model kits for students.

**Highlights:** 2D structural formula drawing, 3D molecular model visualization, Augmented Reality (AR) viewing, Save and reopen models, Pre-built templates, Screenshot capture

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

**In-app purchases:** none


## Frequently asked questions

### Is 国語海賊〜1年生編〜完全版 free?

国語海賊〜1年生編〜完全版 costs $4.99, with no in-app purchases.

### Is K free?

K costs $0.99, with no in-app purchases.

### Do 国語海賊〜1年生編〜完全版 or K have ads?

Neither 国語海賊〜1年生編〜完全版 nor K shows ads.

### Which is updated more often, 国語海賊〜1年生編〜完全版 or K?

国語海賊〜1年生編〜完全版 ships an update every 15 months, and K every 2 weeks. Most recently, 国語海賊〜1年生編〜完全版 was updated on October 15, 2026 and K on October 11, 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.*