# Gluk vs Cal Diary

The clearest difference is in-app purchases: Gluk at none against Cal Diary's 3. Gluk also leads on iOS requirement (13.0 vs 18.0). Cal Diary's advantage is update cadence (every 3 days vs every 2 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Cal Diary sells 3 in-app purchases, starting at $4.99 per 7 days. Gluk asks for nothing beyond the download.

Gluk ships an update every 2 weeks, Cal Diary every 3 days. The most recent releases landed on October 28, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Gluk | Cal Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 3 days** |
| Size | 54 MB | 15 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PCI Yazilim Danismanlik ve Organizasyon Ltd. Sti.](https://appshunter.io/developer/557585483) | [Andrii Makarevych](https://appshunter.io/developer/1820262795) |

## What reviewers say

### Gluk

[App page](https://appshunter.io/ios/app/gluk/id6756575138)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cal Diary

[App page](https://appshunter.io/ios/app/cal-diary-ai-calorie-tracker/id6762306169)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Monthly Premium | $11.99 | per month |
| Annual Premium | $49.99 | per year |


## Frequently asked questions

### Is Gluk free?

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

### Is Cal Diary free?

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

### Do Gluk or Cal Diary have ads?

Neither Gluk nor Cal Diary shows ads.

### Which is updated more often, Gluk or Cal Diary?

Gluk ships an update every 2 weeks, and Cal Diary every 3 days. Most recently, Gluk was updated on October 28, 2026 and Cal Diary on November 5, 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.*