# Calculator 3D vs Redop

The clearest difference is in-app purchases: Redop at none against Calculator 3D's 1. Redop also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Calculator 3D sells 1 one-off in-app purchase. Redop asks for nothing beyond the download.

Calculator 3D ships an update every 5 weeks, Redop every 2 months. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Calculator 3D | Redop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/calculator-3d/id879830848/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 181 MB | 35 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [NOVOBYTE SARL](https://appshunter.io/developer/1596611933) |

## What reviewers say

### Calculator 3D

[App page](https://appshunter.io/ios/app/calculator-3d/id879830848)

This utility app offers a unique calculator experience with animated characters presenting results. Enjoy interactive features like swiping to change backgrounds and reset numbers, all enhanced by atmospheric sounds. It's a fun and colorful way to perform calculations.

**Highlights:** Animated character results, Swipe gestures for background/reset, Atmospheric sound effects, Interactive animations based on result size, Customizable background colors

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ad | $0.99 | one-time |


### Redop

[App page](https://appshunter.io/ios/app/redop/id6749072530)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator 3D free?

Calculator 3D is free to download, with in-app purchases available.

### Is Redop free?

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

### Do Calculator 3D or Redop have ads?

Calculator 3D shows ads; Redop does not.

### Which is updated more often, Calculator 3D or Redop?

Calculator 3D ships an update every 5 weeks, and Redop every 2 months. Most recently, Calculator 3D was updated on October 17, 2026 and Redop on October 2, 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.*