# PhosFilter vs Kidney Ally

The clearest difference is ads: Kidney Ally at none against PhosFilter's shown. Kidney Ally also leads on update cadence (every 8 days vs every 6 weeks). PhosFilter's advantage is iOS requirement (13.4 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. PhosFilter sells 1 in-app purchase, starting at $0.99 per month and Kidney Ally sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

PhosFilter ships an update every 6 weeks, Kidney Ally every 8 days. The most recent releases landed on September 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | PhosFilter | Kidney Ally |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (172 ratings)](https://appshunter.io/ios/app/phosfilter/id1532994680/reviews)** | — |
| Number of ratings | **172** | — |
| Positive reviews | 36.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Monetization | Free with in-app purchases | — |
| Size | 67 MB | 40 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Logic Lab 406 LLC](https://appshunter.io/developer/1777938716) | [Kidney Ally Limited](https://appshunter.io/developer/1892715237) |

## 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 Ally

[App page](https://appshunter.io/ios/app/kidney-ally/id6762063585)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kidney Ally Monthly | $6.99 | per month |
| Kidney Ally Premium Yearly | $68.99 | per year |


## Frequently asked questions

### Is PhosFilter free?

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

### Is Kidney Ally free?

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

### Do PhosFilter or Kidney Ally have ads?

PhosFilter shows ads; Kidney Ally does not.

### Which is updated more often, PhosFilter or Kidney Ally?

PhosFilter ships an update every 6 weeks, and Kidney Ally every 8 days. Most recently, PhosFilter was updated on September 27, 2026 and Kidney Ally on September 19, 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.*