# Ediag vs Hcalory

Ediag and Hcalory both sit at 4.3 stars, but that hides the real split: 67% of Hcalory's written reviews are positive against 30% of Ediag's. Hcalory also leads on iOS requirement (13.6 vs 15.6). Ediag's advantage is ratings volume (1.5K vs 10). On price, rating, 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.

On the App Store both sit at effectively the same score — 4.3 for Ediag against 4.2 for Hcalory. That said, the two scores are not equally well evidenced: Ediag has 1.5K ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 30% of Ediag's written reviews are positive against 67% of Hcalory's.

Ediag ships an update every 2 months, Hcalory every 4 weeks. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Ediag | Hcalory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (1.5K ratings)](https://appshunter.io/ios/app/ediag/id6444249245/reviews)** | [4.2 (10 ratings)](https://appshunter.io/ios/app/hcalory/id6484163464/reviews) |
| Number of ratings | **1.5K** | 10 |
| Positive reviews | 29.6% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 455 MB | 24 MB |
| Requires iOS | 15.6 | **13.6** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Kingbolen Electrics Technology Co., Ltd.](https://appshunter.io/developer/1653350029) | [HONG KONG TING HUI LIMITED](https://appshunter.io/developer/1740490084) |

## What reviewers say

### Ediag

[App page](https://appshunter.io/ios/app/ediag/id6444249245)

Perform comprehensive vehicle diagnostics, including reading data flow, fault codes, and vehicle information. Generate professional diagnostic reports for major automobile manufacturers. Features one-key diagnosis and automatic VIN reading.

**Highlights:** Full-function diagnosis, Read data flow, Read/clear fault code, Read vehicle information, Automatic VIN reading, Diagnostic reports

**In-app purchases:** none

**What reviewers like**

- ✅ Comprehensive diagnostic information and functionality
- 🎯 Works well for specific vehicle models (Chevy, Acura, etc.)
- 💪 Advanced features like glow plug programming and ECU coding
- 📱 Helpful AI and YouTube integration for guidance
- 🔧 Good value for price compared to expensive scan tools

**What reviewers complain about**

- 💰 Hidden subscription fees for special functions ($19.99 each)
- 🐛 App crashes frequently after updates
- ❌ Poor vehicle compatibility with newer models (2023+)
- 🔐 Requires location data and network connectivity
- 😕 Confusing user interface and unclear section titles

**Reported bugs**

- App crashes after latest update
- Activation fails with correct codes (used devices)
- Communication errors during diagnostics
- VIN finder doesn't work well for older cars
- First-day connection issues requiring account reset

**Requested features**

- Support for newer vehicle models (2023+)
- Better auto-identification for Ford and other manufacturers
- Language settings menu (Turkish language support mentioned)
- Ability to command multiple functions from same test screen
- Improved VIN finder for older vehicles (1990s-2000s)


### 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


## Frequently asked questions

### Is Ediag free?

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

### Is Hcalory free?

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

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

Ediag is rated higher. Ediag averages 4.3 out of 5 from 1.5K ratings, while Hcalory averages 4.2 from 10 ratings.

### Do Ediag or Hcalory have ads?

Neither Ediag nor Hcalory shows ads.

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

Ediag ships an update every 2 months, and Hcalory every 4 weeks. Most recently, Ediag was updated on October 20, 2026 and Hcalory on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*