# calculator DUO vs Super Basic Calculator

The clearest difference is ads: Super Basic Calculator at none against calculator DUO's shown. calculator DUO's advantage is update cadence (every 2 weeks vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. calculator DUO sells 1 one-off in-app purchase and Super Basic Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

calculator DUO ships an update every 2 weeks, Super Basic Calculator monthly. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | calculator DUO | Super Basic Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calculator-duo/id6739860116/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 8 MB |
| Requires iOS | **16.5** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wenbin lei](https://appshunter.io/developer/1787331500) | [David Koontz](https://appshunter.io/developer/1824267753) |

## 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 |


### Super Basic Calculator

[App page](https://appshunter.io/ios/app/super-basic-calculator/id6748281902)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |


## Frequently asked questions

### Is calculator DUO free?

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

### Is Super Basic Calculator free?

Super Basic Calculator is free to download, with in-app purchases available.

### Do calculator DUO or Super Basic Calculator have ads?

calculator DUO shows ads; Super Basic Calculator does not.

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

calculator DUO ships an update every 2 weeks, and Super Basic Calculator monthly. Most recently, calculator DUO was updated on September 23, 2026 and Super Basic Calculator on September 20, 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.*