# Vit Calc vs Key Nutrients RDA Calculator

The clearest difference is update cadence: Vit Calc at every 2 weeks against Key Nutrients RDA Calculator's every 6 months. Vit Calc also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Vit Calc ships an update every 2 weeks, Key Nutrients RDA Calculator every 6 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Vit Calc | Key Nutrients RDA Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 months |
| Size | 2 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Rod Bauer](https://appshunter.io/developer/868039735) | [First Line Medical Communications Ltd](https://appshunter.io/developer/369607930) |

## What reviewers say

### Vit Calc

[App page](https://appshunter.io/ios/app/vit-calc/id868039732)

**Features:** macOS Compatibility

**In-app purchases:** none


### Key Nutrients RDA Calculator

[App page](https://appshunter.io/ios/app/key-nutrients-rda-calculator/id6478463996)

**In-app purchases:** none


## Frequently asked questions

### Is Vit Calc free?

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

### Is Key Nutrients RDA Calculator free?

Key Nutrients RDA Calculator is free to download, with no in-app purchases.

### Do Vit Calc or Key Nutrients RDA Calculator have ads?

Neither Vit Calc nor Key Nutrients RDA Calculator shows ads.

### Which is updated more often, Vit Calc or Key Nutrients RDA Calculator?

Vit Calc ships an update every 2 weeks, and Key Nutrients RDA Calculator every 6 months. Most recently, Vit Calc was updated on October 6, 2026 and Key Nutrients RDA Calculator on October 14, 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.*