# SCRCalc vs FEDECANAT

The clearest difference is price: FEDECANAT at Free against SCRCalc's $0.99. FEDECANAT also leads on iOS requirement (12.0 vs 27.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

FEDECANAT is free to download; SCRCalc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SCRCalc ships an update every 9 months, FEDECANAT every 10 months. The most recent releases landed on October 12, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | SCRCalc | FEDECANAT |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 10 months |
| Monetization | Paid | — |
| Size | 1 MB | 10 MB |
| Requires iOS | 27.0 | **12.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Office Proteus](https://appshunter.io/developer/376643421) | [Overcom 7 Islas, S.L.](https://appshunter.io/developer/395213434) |

## What reviewers say

### SCRCalc

[App page](https://appshunter.io/ios/app/scrcalc/id376643418)

Easily calculate your Surface Consumption Rate (SCR) for scuba diving without memorizing complex formulas. Input your data and get your SCR instantly, helping you track your consumption and potentially impress dive guides.

**Highlights:** Calculate SCR for scuba diving, No need to memorize formulas, Easy data input, Track air consumption, Impress dive guides

**Features:** Vision Pro support

**In-app purchases:** none


### FEDECANAT

[App page](https://appshunter.io/ios/app/fedecanat/id1533177920)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SCRCalc free?

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

### Is FEDECANAT free?

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

### Do SCRCalc or FEDECANAT have ads?

Neither SCRCalc nor FEDECANAT shows ads.

### Which is updated more often, SCRCalc or FEDECANAT?

SCRCalc ships an update every 9 months, and FEDECANAT every 10 months. Most recently, SCRCalc was updated on October 12, 2026 and FEDECANAT on September 26, 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.*