# PhosFilter vs Kidney Diet Tracker

The clearest difference is rating: PhosFilter at 4.4 against Kidney Diet Tracker's 1.5. PhosFilter also leads on review sentiment (36% vs 0%) and ratings volume (172 vs 2). Kidney Diet Tracker's advantage is update cadence (every 3 days vs every 6 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. PhosFilter sells 1 in-app purchase, starting at $0.99 per month and Kidney Diet Tracker sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

PhosFilter holds the better App Store score, 4.4 against 1.5. That said, the two scores are not equally well evidenced: PhosFilter has 172 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of PhosFilter's written reviews are positive against 0% of Kidney Diet Tracker's.

PhosFilter ships an update every 6 weeks, Kidney Diet Tracker every 3 days. The most recent releases landed on July 18, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | PhosFilter | Kidney Diet Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (172 ratings)](https://appshunter.io/ios/app/phosfilter/id1532994680/reviews)** | [1.5 (2 ratings)](https://appshunter.io/ios/app/kidney-diet-tracker/id6740221271/reviews) |
| Number of ratings | **172** | 2 |
| Positive reviews | **36.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 67 MB | 73 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Logic Lab 406 LLC](https://appshunter.io/developer/1777938716) | [Verenes LLC](https://appshunter.io/developer/1769311368) |

## What reviewers say

### PhosFilter

[App page](https://appshunter.io/ios/app/phosfilter/id1532994680)

This app helps users identify added phosphates in ingredient lists. It is particularly useful for individuals managing Chronic Kidney Disease (CKD) or on dialysis (ESRD).

**Highlights:** Identify added phosphates, Scan ingredient lists, Dietary management aid, CKD support, ESRD support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Free Monthly Subscription | $0.99 | per month |


### Kidney Diet Tracker

[App page](https://appshunter.io/ios/app/kidney-diet-tracker/id6740221271)

Manage your daily nutrient intake with this app, which uses the USDA Food Data Central database to track calories, protein, sodium, potassium, phosphorus, and fluid. It offers real-time calculations, alerts, and detailed charts for daily, weekly, and monthly consumption patterns.

**Highlights:** Track 6 essential nutrients, USDA Food Data Central database, Real-time nutrient calculations, Daily, weekly, monthly trends, Custom meal creation, Personalized nutrient goals

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly Plan | $4.99 | per month |
| Premium Yearly Plan | $29.99 | per year |


## Frequently asked questions

### Is PhosFilter free?

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

### Is Kidney Diet Tracker free?

Kidney Diet Tracker is free to download, with in-app purchases available.

### Which has better reviews, PhosFilter or Kidney Diet Tracker?

PhosFilter is rated higher. PhosFilter averages 4.4 out of 5 from 172 ratings, while Kidney Diet Tracker averages 1.5 from 2 ratings.

### Do PhosFilter or Kidney Diet Tracker have ads?

Both PhosFilter and Kidney Diet Tracker show ads.

### Which is updated more often, PhosFilter or Kidney Diet Tracker?

PhosFilter ships an update every 6 weeks, and Kidney Diet Tracker every 3 days. Most recently, PhosFilter was updated on July 18, 2026 and Kidney Diet Tracker on June 1, 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.*