# 算多多 vs Duck Calculator

The clearest difference is update cadence: 算多多 at every 2 weeks against Duck Calculator's every 7 months. 算多多 also leads on device support (4 vs 2) and iOS requirement (11.0 vs 16.0). Duck Calculator's advantage is price ($0.99 vs $1.99). On ads and in-app purchases there is nothing between them.

算多多 costs $1.99 and Duck Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

算多多 ships an update every 2 weeks, Duck Calculator every 7 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 算多多 | Duck Calculator |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | — | Paid |
| Size | 38 MB | 1 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shenzhen uyoulink technology co.,ltd](https://appshunter.io/developer/1614752414) | [德铭 何](https://appshunter.io/developer/1690983330) |

## What reviewers say

### 算多多

[App page](https://appshunter.io/ios/app/id6444695454)

**Features:** Vision Pro support

**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 算多多 free?

算多多 costs $1.99, with no in-app purchases.

### Is Duck Calculator free?

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

### Do 算多多 or Duck Calculator have ads?

Neither 算多多 nor Duck Calculator shows ads.

### Which is updated more often, 算多多 or Duck Calculator?

算多多 ships an update every 2 weeks, and Duck Calculator every 7 months. Most recently, 算多多 was updated on October 15, 2026 and Duck Calculator 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.*