# calculator DUO vs 萬用計算機Cacunote

The clearest difference is in-app purchases: 萬用計算機Cacunote at none against calculator DUO's 1. calculator DUO's advantage is update cadence (every 10 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. calculator DUO sells 1 one-off in-app purchase. 萬用計算機Cacunote asks for nothing beyond the download.

calculator DUO ships an update every 10 days, 萬用計算機Cacunote every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | calculator DUO | 萬用計算機Cacunote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/calculator-duo/id6739860116/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 13 MB |
| Requires iOS | **16.5** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wenbin lei](https://appshunter.io/developer/1787331500) | [JUN-PENG LIN](https://appshunter.io/developer/1435427881) |

## What reviewers say

### calculator DUO

[App page](https://appshunter.io/ios/app/calculator-duo/id6739860116)

This utility app allows for comfortable one-handed calculations by letting you reposition the keypad. It also provides features to save and reuse past answers, correct input with a swipe, and handle both everyday and scientific calculations, including date and time functions.

**Highlights:** One-handed keypad repositioning, Save and reuse past answers, Swipe to delete/correct input, Everyday and scientific functions, Date and time calculations, Customizable themes and display

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### 萬用計算機Cacunote

[App page](https://appshunter.io/ios/app/cacunote/id6747065208)

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

**In-app purchases:** none


## Frequently asked questions

### Is calculator DUO free?

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

### Is 萬用計算機Cacunote free?

萬用計算機Cacunote is free to download, with no in-app purchases.

### Do calculator DUO or 萬用計算機Cacunote have ads?

Both calculator DUO and 萬用計算機Cacunote show ads.

### Which is updated more often, calculator DUO or 萬用計算機Cacunote?

calculator DUO ships an update every 10 days, and 萬用計算機Cacunote every 3 weeks. Most recently, calculator DUO was updated on November 4, 2026 and 萬用計算機Cacunote on October 30, 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.*