# DietConcepts vs YKBI

The clearest difference is update cadence: DietConcepts at every 3 weeks against YKBI's every 21 months. 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.

DietConcepts ships an update every 3 weeks, YKBI every 21 months. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | DietConcepts | YKBI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 21 months |
| Size | 36 MB | 236 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AnTim Technologies LLP](https://appshunter.io/developer/1606313669) | [FitPhilia](https://appshunter.io/developer/1178311498) |

## What reviewers say

### DietConcepts

[App page](https://appshunter.io/ios/app/dietconcepts/id1662301715)

**Features:** macOS Compatibility

**In-app purchases:** none


### YKBI

[App page](https://appshunter.io/ios/app/ykbi/id6445909273)

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

**In-app purchases:** none


## Frequently asked questions

### Is DietConcepts free?

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

### Is YKBI free?

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

### Do DietConcepts or YKBI have ads?

Neither DietConcepts nor YKBI shows ads.

### Which is updated more often, DietConcepts or YKBI?

DietConcepts ships an update every 3 weeks, and YKBI every 21 months. Most recently, DietConcepts was updated on September 13, 2026 and YKBI on September 18, 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.*