# 灵动空间 vs Duck Calculator

The clearest difference is price: 灵动空间 at Free against Duck Calculator's $0.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

灵动空间 is free to download; Duck Calculator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 灵动空间 | Duck Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 7 months |
| Monetization | — | Paid |
| Size | 75 MB | 1 MB |
| Requires iOS | 16.1 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [慧 周](https://appshunter.io/developer/1655100223) | [德铭 何](https://appshunter.io/developer/1690983330) |

## What reviewers say

### 灵动空间

[App page](https://appshunter.io/ios/app/id6444756534)

**In-app purchases:** none


### Duck Calculator

[App page](https://appshunter.io/ios/app/duck-calculator/id6739608733)

This app appears as a standard calculator but has a hidden "magic" mode. It can display preset text or images when a specific number is calculated, offering creative surprises for pranks or confessions.

**Highlights:** Accurate standard calculations, Magic mode for custom results, Display preset text or pictures, Customizable magic effects, Secret and low-key design

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

**In-app purchases:** none


## Frequently asked questions

### Is 灵动空间 free?

灵动空间 is free to download, with no in-app purchases.

### Is Duck Calculator free?

Duck Calculator costs $0.99, with no in-app purchases.

### Do 灵动空间 or Duck Calculator have ads?

Neither 灵动空间 nor Duck Calculator shows ads.

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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.*