# SkinStack AI vs PortionPal

The clearest difference is ads: PortionPal at none against SkinStack AI's shown. SkinStack AI's advantage is update cadence (weekly vs monthly) and iOS requirement (15.1 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. SkinStack AI sells 2 in-app purchases, starting at $5.99 per month and PortionPal sells 5 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

SkinStack AI ships an update weekly, PortionPal monthly. The most recent releases landed on October 11, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | SkinStack AI | PortionPal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Size | 37 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jody Ryan van Schalkwyk](https://appshunter.io/developer/1896589331) | [Heinz Meier](https://appshunter.io/developer/1824697405) |

## What reviewers say

### SkinStack AI

[App page](https://appshunter.io/ios/app/skinstack-ai/id6768606391)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SkinStack Premium Monthly | $5.99 | per month |
| SkinStack Premium Annual | $39.99 | per year |


### PortionPal

[App page](https://appshunter.io/ios/app/portionpal-portion-control/id6787688123)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| 25 AI Credits | $1.99 | one-time |
| 100 AI Credits | $4.99 | one-time |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is SkinStack AI free?

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

### Is PortionPal free?

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

### Do SkinStack AI or PortionPal have ads?

SkinStack AI shows ads; PortionPal does not.

### Which is updated more often, SkinStack AI or PortionPal?

SkinStack AI ships an update weekly, and PortionPal monthly. Most recently, SkinStack AI was updated on October 11, 2026 and PortionPal on October 4, 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.*