# HC Key vs HART

The clearest difference is in-app purchases: HC Key at none against HART's 3. HART's advantage is update cadence (every 5 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. HART sells 3 in-app purchases, starting at $0.99 per month. HC Key asks for nothing beyond the download.

HC Key ships an update every 6 months, HART every 5 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HC Key | HART |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (121 ratings)](https://appshunter.io/ios/app/hc-key/id1559953335/reviews)** | — |
| Number of ratings | **121** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | Ad-supported | — |
| Size | 43 MB | 49 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hartmann Controls Corp](https://appshunter.io/developer/1470461774) | [DENYS YAVORSKYI](https://appshunter.io/developer/1895294999) |

## What reviewers say

### HC Key

[App page](https://appshunter.io/ios/app/hc-key/id1559953335)

This app allows you to use your smartphone to unlock doors, eliminating the need for physical credentials. It offers an easy-to-use interface for swift access and enables temporary access for visitors.

**Highlights:** Unlock doors with smartphone, Replace physical credentials, Easy user registration, Grant temporary visitor access, Customize visitor access duration, Visitor access without app installation

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

**In-app purchases:** none


### HART

[App page](https://appshunter.io/ios/app/hart-habit-and-routine-tracker/id6763396802)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HART Pro Monthly | $0.99 | per month |
| HART Pro Yearly | $9.99 | per year |
| HART Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is HC Key free?

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

### Is HART free?

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

### Do HC Key or HART have ads?

Neither HC Key nor HART shows ads.

### Which is updated more often, HC Key or HART?

HC Key ships an update every 6 months, and HART every 5 days. Most recently, HC Key was updated on November 3, 2026 and HART on October 25, 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.*