# PeriSync vs Calorie Counter

The clearest difference is in-app purchases: PeriSync at none against Calorie Counter's 6. PeriSync also leads on ads (none vs shown) and iOS requirement (14.0 vs 18.6). Calorie Counter's advantage is update cadence (fortnightly vs monthly). On price and device support there is nothing between them.

Both are free to download. Calorie Counter sells 6 in-app purchases, starting at $9.99 per 7 days. PeriSync asks for nothing beyond the download.

PeriSync ships an update monthly, Calorie Counter fortnightly. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | PeriSync | Calorie Counter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Size | 52 MB | 38 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Forhercare Kereskedelmi Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1655984087) | [Wing Hei Brian Tam](https://appshunter.io/developer/1788859558) |

## What reviewers say

### PeriSync

[App page](https://appshunter.io/ios/app/perisync/id6470280585)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calorie Counter

[App page](https://appshunter.io/ios/app/calorie-counter-ately/id6757084101)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $9.99 | per 7 days |
| Unlimited | $12.99 | per 7 days |
| Ately Unlimited | $19.99 | per month |
| Unlimited | $19.99 | per year |
| Unlimited | $29.99 | per year |
| Ately Unlimited | $39.99 | per year |


## Frequently asked questions

### Is PeriSync free?

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

### Is Calorie Counter free?

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

### Do PeriSync or Calorie Counter have ads?

Calorie Counter shows ads; PeriSync does not.

### Which is updated more often, PeriSync or Calorie Counter?

PeriSync ships an update monthly, and Calorie Counter fortnightly. Most recently, PeriSync was updated on October 10, 2026 and Calorie Counter on October 8, 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.*