# Dual Calculator vs DEDEDEN

The clearest difference is in-app purchases: Dual Calculator at none against DEDEDEN's 1. DEDEDEN's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Dual Calculator ships an update every 5 months, DEDEDEN every 3 weeks. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Dual Calculator | DEDEDEN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 33 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Huzaib Sayyed](https://appshunter.io/developer/1778310247) | [Tarinai Works](https://appshunter.io/developer/1857880583) |

## What reviewers say

### Dual Calculator

[App page](https://appshunter.io/ios/app/dual-calculator-split-screen/id6738931674)

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

**In-app purchases:** none


### DEDEDEN

[App page](https://appshunter.io/ios/app/dededen/id6757660599)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Feature Unlock | $1.99 | one-time |


## Frequently asked questions

### Is Dual Calculator free?

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

### Is DEDEDEN free?

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

### Do Dual Calculator or DEDEDEN have ads?

Both Dual Calculator and DEDEDEN show ads.

### Which is updated more often, Dual Calculator or DEDEDEN?

Dual Calculator ships an update every 5 months, and DEDEDEN every 3 weeks. Most recently, Dual Calculator was updated on October 4, 2026 and DEDEDEN on October 13, 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.*