# PKU vs Feely

The clearest difference is review sentiment: Feely at 50% against PKU's 0%. Feely also leads on rating (4.5 vs 4.0) and update cadence (every 10 days vs every 2 months). PKU's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PKU sells 1 one-off in-app purchase and Feely sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Feely holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Feely has 23 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of PKU's written reviews are positive against 50% of Feely's.

PKU ships an update every 2 months, Feely every 10 days. The most recent releases landed on August 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | PKU | Feely |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/pku/id1046121773/reviews) | **[4.5 (23 ratings)](https://appshunter.io/ios/app/feely-emotion-tracker/id6478607762/reviews)** |
| Number of ratings | 2 | **23** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 24 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Maik Barz](https://appshunter.io/developer/891428102) | [Thomas Petrach](https://appshunter.io/developer/1676594692) |

## What reviewers say

### PKU

[App page](https://appshunter.io/ios/app/pku/id1046121773)

This app helps individuals manage their Phenylalanine (PHE) intake by tracking food consumption. It allows users to add custom foods, create recipes, and set supplement reminders. A daily overview shows remaining PHE allowance, and a blood value list provides a quick health summary.

**Highlights:** Track Phenylalanine (PHE) intake, Add custom foods and recipes, Daily PHE allowance overview, Supplement reminder alerts, Blood value list, Recipe management with average PHE per 100g

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock premium features | $2.99 | one-time |


### Feely

[App page](https://appshunter.io/ios/app/feely-emotion-tracker/id6478607762)

This app helps families discuss emotions and experiences through playful audio recordings and visualizations. It supports children in recognizing and naming feelings, fostering empathy, and encouraging self-reflection in a safe, shared environment.

**Highlights:** Audio recording of feelings and experiences, Visualized emotions with friendly characters, Shared family use and insights, Individual profiles for multiple children, Tracking emotional development over time, Safe and protected environment

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per month |
| Premium | $4.99 | per 6 months |
| Premium | $6.99 | per year |
| Premium | $7.99 | per year |
| Premium | $11.99 | one-time |


## Frequently asked questions

### Is PKU free?

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

### Is Feely free?

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

### Which has better reviews, PKU or Feely?

Feely is rated higher. PKU averages 4.0 out of 5 from 2 ratings, while Feely averages 4.5 from 23 ratings.

### Do PKU or Feely have ads?

Neither PKU nor Feely shows ads.

### Which is updated more often, PKU or Feely?

PKU ships an update every 2 months, and Feely every 10 days. Most recently, PKU was updated on August 9, 2026 and Feely 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.*