# USSPA SmartApp vs SmartKey APPka

The clearest difference is review sentiment: SmartKey APPka at 100% against USSPA SmartApp's 33%. USSPA SmartApp's advantage is update cadence (every 3 months vs every 12 months) and iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

USSPA SmartApp ships an update every 3 months, SmartKey APPka every 12 months. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | USSPA SmartApp | SmartKey APPka |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 12 months |
| Monetization | Free | Free |
| Size | 23 MB | 416 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [MEDIA FACTORY Czech Republic a.s.](https://appshunter.io/developer/937782577) | [SmartKey s.r.o.](https://appshunter.io/developer/1515904395) |

## What reviewers say

### USSPA SmartApp

[App page](https://appshunter.io/ios/app/usspa-smartapp/id937782578)

Remotely manage your spa's functions, including water temperature, filtration, and energy-saving modes, from your iPhone or iPad. Ensure your spa is always ready for use with intuitive control over all its features.

**Highlights:** Remote spa control, Monitor spa status, Adjust water heating, Set filtration times, Configure energy-saving modes, Intuitive user interface

**Features:** macOS Compatibility

**In-app purchases:** none


### SmartKey APPka

[App page](https://appshunter.io/ios/app/smartkey-appka/id1515904396)

Control your doors with fingerprint, card, keyfob, PIN, or mobile app via Bluetooth. Remotely manage access to your properties with online Wi-Fi connectivity. Integrates with hotel software.

**Highlights:** Fingerprint access, Card and keyfob entry, PIN code access, Mobile app control (Bluetooth), Remote Wi-Fi access management, Hotel software integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is USSPA SmartApp free?

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

### Is SmartKey APPka free?

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

### Do USSPA SmartApp or SmartKey APPka have ads?

Neither USSPA SmartApp nor SmartKey APPka shows ads.

### Which is updated more often, USSPA SmartApp or SmartKey APPka?

USSPA SmartApp ships an update every 3 months, and SmartKey APPka every 12 months. Most recently, USSPA SmartApp was updated on October 15, 2026 and SmartKey APPka on October 10, 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.*