# Calcutron vs RF Tools ++

The clearest difference is update cadence: RF Tools ++ at every 2 weeks against Calcutron's every 33 months. Calcutron's advantage is price ($0.99 vs $1.99) and iOS requirement (14.7 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Calcutron costs $0.99 and RF Tools ++ $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calcutron ships an update every 33 months, RF Tools ++ every 2 weeks. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Calcutron | RF Tools ++ |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calcutron/id867388850/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 0 MB | 42 MB |
| Requires iOS | **14.7** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Solo Design, LLC](https://appshunter.io/developer/867388853) | [Jeff Curtis](https://appshunter.io/developer/358219019) |

## What reviewers say

### Calcutron

[App page](https://appshunter.io/ios/app/calcutron/id867388850)

This tool helps designers, developers, and artists proportionally resize digital assets. Easily calculate new dimensions for images, videos, or layouts by entering one measurement.

**Highlights:** Calculate missing dimension automatically, Use common or custom aspect ratios, Save frequently used sizes, Swap width and height with one tap, Round dimensions to specified decimal places

**In-app purchases:** none


### RF Tools ++

[App page](https://appshunter.io/ios/app/rf-tools-plus-plus/id1548209609)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calcutron free?

Calcutron costs $0.99, with no in-app purchases.

### Is RF Tools ++ free?

RF Tools ++ costs $1.99, with no in-app purchases.

### Do Calcutron or RF Tools ++ have ads?

Neither Calcutron nor RF Tools ++ shows ads.

### Which is updated more often, Calcutron or RF Tools ++?

Calcutron ships an update every 33 months, and RF Tools ++ every 2 weeks. Most recently, Calcutron was updated on October 23, 2026 and RF Tools ++ on October 19, 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.*