# 线岛 vs 记卡鸭

The clearest difference is device support: 线岛 at 3 against 记卡鸭's 1. 线岛 also leads on iOS requirement (16 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 线岛 sells 2 in-app purchases, starting at $0.99 per month and 记卡鸭 sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

线岛 ships an update every 9 days, 记卡鸭 every 2 weeks. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 线岛 | 记卡鸭 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6743368245/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 14 MB | 46 MB |
| Requires iOS | **16** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [强 李](https://appshunter.io/developer/1449686959) | [峰 朱](https://appshunter.io/developer/6799862958) |

## What reviewers say

### 线岛

[App page](https://appshunter.io/ios/app/id6743368245)

This app helps crafters meticulously track and manage their yarn inventory. Record yarn details with images, update usage, and gain an overview of your collection's quantity, cost, and remaining material. Offers advanced features for subscribers.

**Highlights:** Yarn information recording with images, Usage tracking and deletion, Collection overview (quantity, cost, remaining), Card-style waterfall display of yarn, Customizable tags and filters, Unlimited yarn data addition

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 线岛专业版月度订阅 | $0.99 | per month |
| 线岛专业版年度订阅 | $5.99 | per year |


### 记卡鸭

[App page](https://appshunter.io/ios/app/id6799974020)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $2.99 | per month |


## Frequently asked questions

### Is 线岛 free?

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

### Is 记卡鸭 free?

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

### Do 线岛 or 记卡鸭 have ads?

Neither 线岛 nor 记卡鸭 shows ads.

### Which is updated more often, 线岛 or 记卡鸭?

线岛 ships an update every 9 days, and 记卡鸭 every 2 weeks. Most recently, 线岛 was updated on October 30, 2026 and 记卡鸭 on October 24, 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.*