# calculator DUO vs Calculator

The clearest difference is in-app purchases: Calculator at none against calculator DUO's 1. Calculator also leads on ads (none vs shown). calculator DUO's advantage is update cadence (every 10 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. calculator DUO sells 1 one-off in-app purchase. Calculator asks for nothing beyond the download.

calculator DUO ships an update every 10 days, Calculator monthly. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | calculator DUO | Calculator |
| --- | --- | --- |
| 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 | **No** |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 32 MB |
| Requires iOS | 16.5 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wenbin lei](https://appshunter.io/developer/1787331500) | [Hussain HUSSAIN NASEER](https://appshunter.io/developer/6801492349) |

## What reviewers say

### calculator DUO

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

This utility app offers a modern calculator with a visual history feature, eliminating the need to memorize previous calculations. It also includes a comprehensive unit converter and a tip calculator that bases tips on pre-tax amounts.

**Highlights:** Visual history calculator (RESULT SHELF™), Unit converter, Tip calculator (pre-tax), Distraction-free design, Precise and efficient

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $7.99 | one-time |


### Calculator

[App page](https://appshunter.io/ios/app/calculator-basic-plus-scientific/id6801492347)

**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 Calculator free?

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

### Do calculator DUO or Calculator have ads?

calculator DUO shows ads; Calculator does not.

### Which is updated more often, calculator DUO or Calculator?

calculator DUO ships an update every 10 days, and Calculator monthly. Most recently, calculator DUO was updated on October 9, 2026 and Calculator on October 8, 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.*