# PERIODS vs Calorie Diary

The clearest difference is in-app purchases: PERIODS at none against Calorie Diary's 1. Calorie Diary's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Calorie Diary sells 1 one-off in-app purchase. PERIODS asks for nothing beyond the download.

## The numbers

| Metric | PERIODS | Calorie Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | Yes |
| Update frequency | — | Every 11 days |
| Size | 47 MB | 31 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [Z-TECH](https://appshunter.io/developer/1545897940) | [SnowdropSoft](https://appshunter.io/developer/1541796403) |

## What reviewers say

### PERIODS

[App page](https://appshunter.io/ios/app/periods/id6446258455)

**In-app purchases:** none


### Calorie Diary

[App page](https://appshunter.io/ios/app/calorie-diary-diet-tracker/id6743460448)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is PERIODS free?

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

### Is Calorie Diary free?

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

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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.*