# AB LegSize vs DeepIsland 深岛

The clearest difference is price: AB LegSize at Free against DeepIsland 深岛's $0.99. AB LegSize also leads on iOS requirement (16.4 vs 18.2). DeepIsland 深岛's advantage is update cadence (every 4 days vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

AB LegSize is free to download; DeepIsland 深岛 costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AB LegSize ships an update every 2 months, DeepIsland 深岛 every 4 days. The most recent releases landed on October 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | AB LegSize | DeepIsland 深岛 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 6 MB | 22 MB |
| Requires iOS | **16.4** | 18.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Berkovich](https://appshunter.io/developer/1460157188) | [鉴 郗](https://appshunter.io/developer/559961494) |

## What reviewers say

### AB LegSize

[App page](https://appshunter.io/ios/app/ab-legsize/id6449621193)

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

**In-app purchases:** none


### DeepIsland 深岛

[App page](https://appshunter.io/ios/app/deepisland/id6741362565)

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

**In-app purchases:** none


## Frequently asked questions

### Is AB LegSize free?

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

### Is DeepIsland 深岛 free?

DeepIsland 深岛 costs $0.99, with no in-app purchases.

### Do AB LegSize or DeepIsland 深岛 have ads?

Neither AB LegSize nor DeepIsland 深岛 shows ads.

### Which is updated more often, AB LegSize or DeepIsland 深岛?

AB LegSize ships an update every 2 months, and DeepIsland 深岛 every 4 days. Most recently, AB LegSize was updated on October 3, 2026 and DeepIsland 深岛 on October 28, 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.*