# TKM App vs Key Nutrients RDA Calculator

The clearest difference is update cadence: TKM App at every 3 months against Key Nutrients RDA Calculator's every 6 months. TKM App also leads on iOS requirement (12.0 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.

TKM App ships an update every 3 months, Key Nutrients RDA Calculator every 6 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | TKM App | Key Nutrients RDA Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Size | 38 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Glenn King](https://appshunter.io/developer/1612681660) | [First Line Medical Communications Ltd](https://appshunter.io/developer/369607930) |

## What reviewers say

### TKM App

[App page](https://appshunter.io/ios/app/tkm-app/id1612681658)

**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 TKM App free?

TKM App 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 TKM App or Key Nutrients RDA Calculator have ads?

Neither TKM App nor Key Nutrients RDA Calculator shows ads.

### Which is updated more often, TKM App or Key Nutrients RDA Calculator?

TKM App ships an update every 3 months, and Key Nutrients RDA Calculator every 6 months. Most recently, TKM App was updated on October 25, 2026 and Key Nutrients RDA Calculator on October 27, 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.*