# SunMax vs PrimalGPT

The clearest difference is iOS requirement: SunMax at 15.0 against PrimalGPT's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. SunMax sells 3 in-app purchases, starting at $4.99 per month and PrimalGPT sells 1 in-app purchase, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

SunMax ships an update every 5 days, PrimalGPT every 4 days. The most recent releases landed on September 16, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | SunMax | PrimalGPT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (51 ratings)](https://appshunter.io/ios/app/primalgpt/id6787768313/reviews)** |
| Number of ratings | — | **51** |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 27 MB | 13 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Oliver Stojcevski](https://appshunter.io/developer/1829807990) | [Nikolay Tonkov](https://appshunter.io/developer/6787768315) |

## What reviewers say

### SunMax

[App page](https://appshunter.io/ios/app/sunmax-vitamin-d-tracker/id6749281214)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $39.99 | per year |
| SunMax Premium Lifetime | $69.99 | one-time |


### PrimalGPT

[App page](https://appshunter.io/ios/app/primalgpt/id6787768313)

This AI-powered assistant offers personalized advice on primal, carnivore, and ancestral nutrition. Get instant answers, detailed research, and customize your AI's preferences for a tailored approach to healthy eating and living. Analyze meals, track habits, and find local food sources.

**Highlights:** Personalized primal and carnivore nutrition advice, AI chat assistant with voice input/output, Meal analysis and nutritional insights via photo, Diet Score and habit tracking, Farm Finder for local food sources, Customizable AI personality and dietary preferences

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $7.99 | per month |


## Frequently asked questions

### Is SunMax free?

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

### Is PrimalGPT free?

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

### Do SunMax or PrimalGPT have ads?

Neither SunMax nor PrimalGPT shows ads.

### Which is updated more often, SunMax or PrimalGPT?

SunMax ships an update every 5 days, and PrimalGPT every 4 days. Most recently, SunMax was updated on September 16, 2026 and PrimalGPT on September 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.*