# oXigen slot.it vs HH Smart

The clearest difference is iOS requirement: oXigen slot.it at 11.0 against HH Smart's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | oXigen slot.it | HH Smart |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/oxigen-slotit/id1501068779/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 34 MB | 190 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SISTEK INFORMATICA](https://appshunter.io/developer/1501068778) | [深圳哼哈智能电子有限公司](https://appshunter.io/developer/1783587414) |

## What reviewers say

### oXigen slot.it

[App page](https://appshunter.io/ios/app/oxigen-slotit/id1501068779)

This app serves as the official interface for Slot.it in-car circuits and compatible controllers. It allows users to connect and manage their Slot.it racing systems directly from their iOS devices.

**Highlights:** Official Slot.it interface, Supports in-car circuits, Compatible with SCP-3 controllers, Compatible with ARC PRO controllers, iOS device integration

**In-app purchases:** none


### HH Smart

[App page](https://appshunter.io/ios/app/hh-smart/id6739068971)

**In-app purchases:** none


## Frequently asked questions

### Is oXigen slot.it free?

oXigen slot.it is free to download, with no in-app purchases.

### Is HH Smart free?

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

### Do oXigen slot.it or HH Smart have ads?

Neither oXigen slot.it nor HH Smart shows ads.

### Which is updated more often, oXigen slot.it or HH Smart?

oXigen slot.it ships an update every 3 months, and HH Smart every 3 months. Most recently, oXigen slot.it was updated on October 20, 2026 and HH Smart on October 5, 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.*