# Hcalory vs D

The clearest difference is review sentiment: Hcalory at 67% against D's 0%. Hcalory also leads on rating (4.2 vs 3.4). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hcalory holds the better App Store score, 4.2 against 3.4. Both are backed by a comparable volume of ratings — 10 and 5 respectively. Written reviews point the same way: 67% of Hcalory's written reviews are positive against 0% of D's.

Hcalory ships an update every 4 weeks, D monthly. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Hcalory | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/hcalory/id6484163464/reviews)** | [3.4 (5 ratings)](https://appshunter.io/ios/app/d-switch/id6742772970/reviews) |
| Number of ratings | **10** | 5 |
| Positive reviews | **66.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 24 MB | 29 MB |
| Requires iOS | **13.6** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HONG KONG TING HUI LIMITED](https://appshunter.io/developer/1740490084) | [Diode Dynamics LLC](https://appshunter.io/developer/1282220385) |

## 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


### D

[App page](https://appshunter.io/ios/app/d-switch/id6742772970)

This app provides advanced control for a 12V accessory switch panel, allowing users to customize and manage vehicle lighting and other accessories via Bluetooth. It offers features like custom button programming, strobing patterns, and integration with vehicle signals for a seamless setup.

**Highlights:** Customizable 8-channel switch panel control, Dedicated backlight bus bar control, Group multiple outputs per button, Strobing patterns for outputs, Bluetooth connectivity with instant response, Integration with vehicle signals via trigger wires, Ignition wire for automatic activation/deactivation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Hcalory free?

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

### Is D free?

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

### Which has better reviews, Hcalory or D?

Hcalory is rated higher. Hcalory averages 4.2 out of 5 from 10 ratings, while D averages 3.4 from 5 ratings.

### Do Hcalory or D have ads?

Neither Hcalory nor D shows ads.

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

Hcalory ships an update every 4 weeks, and D monthly. Most recently, Hcalory was updated on October 1, 2026 and D on September 19, 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.*