# KidneyDiet vs Key Nutrients RDA Calculator

The clearest difference is in-app purchases: Key Nutrients RDA Calculator at none against KidneyDiet's 2. KidneyDiet's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. KidneyDiet sells 2 in-app purchases, starting at $7.99 per month. Key Nutrients RDA Calculator asks for nothing beyond the download.

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

## The numbers

| Metric | KidneyDiet | Key Nutrients RDA Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (321 ratings)](https://appshunter.io/ios/app/kidneydiet/id373471282/reviews)** | — |
| Number of ratings | **321** | — |
| Positive reviews | 63.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Freemium | — |
| Size | 297 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [Kismetly, Inc.](https://appshunter.io/developer/373471285) | [First Line Medical Communications Ltd](https://appshunter.io/developer/369607930) |

## What reviewers say

### KidneyDiet

[App page](https://appshunter.io/ios/app/kidneydiet/id373471282)

This app assists individuals with kidney disease in monitoring key nutrients like phosphorus, potassium, and protein. It offers personalized daily guidelines, a comprehensive food database, and detailed nutrient tracking to support informed dietary choices. Users can also log favorite foods and share their progress with healthcare providers.

**Highlights:** Track phosphorus, potassium, and protein, Personalized daily guidelines, Extensive food and nutrient database, Detailed nutrient intake charts, Log favorite foods, Email daily diary

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $7.99 | per month |
| Yearly Subscription | $54.99 | per year |

**What reviewers like**

- ✅ Tracks essential kidney nutrients (phosphorus, potassium, protein)
- 📊 Visual daily totals and progress tracking
- 🔍 Barcode scanner for quick food lookup
- ⭐ Favorites list for frequently eaten foods
- 📧 Email diary feature for sharing with healthcare providers

**What reviewers complain about**

- 🐛 App crashes when viewing nutrition details or adding items
- 🔧 Inconsistent measurement units (grams, ounces, cups)
- 📉 Limited food database compared to competitors
- ❌ Cannot delete items from favorites list
- 🔐 Account creation required before trial

**Reported bugs**

- App crashes when clicking 'see all nutrition' or 'add to diary' buttons
- Barcode scanner not functioning (QR code error)
- Many foods display without portion size options
- Cannot add custom portion sizes for preset foods
- Login and password reset emails not sending

**Requested features**

- Add carbohydrates and cholesterol tracking for diabetic patients
- Allow users to edit saved custom foods
- Ability to delete items from favorites without limitation
- Multi-year subscription discounts
- Recipe builder with automatic nutrient calculation


### Key Nutrients RDA Calculator

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

**In-app purchases:** none


## Frequently asked questions

### Is KidneyDiet free?

KidneyDiet is free to download, with in-app purchases available.

### Is Key Nutrients RDA Calculator free?

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

### Do KidneyDiet or Key Nutrients RDA Calculator have ads?

Neither KidneyDiet nor Key Nutrients RDA Calculator shows ads.

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

KidneyDiet ships an update every 3 months, and Key Nutrients RDA Calculator every 6 months. Most recently, KidneyDiet was updated on November 6, 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.*