# Hcalory vs PETNF

The clearest difference is update cadence: Hcalory at every 4 weeks against PETNF's every 14 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.

Hcalory ships an update every 4 weeks, PETNF every 14 months. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hcalory | PETNF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/hcalory/id6484163464/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 14 months |
| Monetization | Free | — |
| Size | 24 MB | 109 MB |
| Requires iOS | 13.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG TING HUI LIMITED](https://appshunter.io/developer/1740490084) | [LESOROCITY (SHENZHEN) IND'L](https://appshunter.io/developer/1889071730) |

## What reviewers say

### Hcalory

[App page](https://appshunter.io/ios/app/hcalory/id6484163464)

Control your air heater remotely with this app. Monitor parameters, adjust temperature and gears, set schedules, and activate modes like plateau and ventilation. Designed for specific supported heater models.

**Highlights:** Remote heater control, Parameter monitoring, Temperature and gear adjustment, Plateau mode activation, Ventilation control, Scheduling functionality

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

**In-app purchases:** none


### PETNF

[App page](https://appshunter.io/ios/app/petnf/id6748596395)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hcalory free?

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

### Is PETNF free?

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

### Do Hcalory or PETNF have ads?

Neither Hcalory nor PETNF shows ads.

### Which is updated more often, Hcalory or PETNF?

Hcalory ships an update every 4 weeks, and PETNF every 14 months. Most recently, Hcalory was updated on October 16, 2026 and PETNF on October 1, 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.*