# NutriWorld vs K1

The clearest difference is update cadence: NutriWorld at every 6 months against K1's every 13 months. K1's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NutriWorld ships an update every 6 months, K1 every 13 months. The most recent releases landed on October 12, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | NutriWorld | K1 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 13 months |
| Size | 66 MB | 64 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Massimo Cerra](https://appshunter.io/developer/1631398722) | [XIAOZHONG MA](https://appshunter.io/developer/1667250115) |

## What reviewers say

### NutriWorld

[App page](https://appshunter.io/ios/app/nutriworld-integratori-e-keto/id1631398720)

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

**In-app purchases:** none


### K1

[App page](https://appshunter.io/ios/app/k1/id1667250113)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NutriWorld free?

NutriWorld is free to download, with no in-app purchases.

### Is K1 free?

K1 is free to download, with no in-app purchases.

### Do NutriWorld or K1 have ads?

Neither NutriWorld nor K1 shows ads.

### Which is updated more often, NutriWorld or K1?

NutriWorld ships an update every 6 months, and K1 every 13 months. Most recently, NutriWorld was updated on October 12, 2026 and K1 on October 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*