# HKfit one vs RDVat

The clearest difference is update cadence: HKfit one at every 3 weeks against RDVat's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

HKfit one ships an update every 3 weeks, RDVat every 2 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | HKfit one | RDVat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 185 MB | 119 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen United Power Technology Co., Ltd.](https://appshunter.io/developer/1447215451) | [深圳市润德智能通讯科技有限公司](https://appshunter.io/developer/1761719783) |

## What reviewers say

### HKfit one

[App page](https://appshunter.io/ios/app/hkfit-one/id6499514965)

**Features:** macOS Compatibility

**In-app purchases:** none


### RDVat

[App page](https://appshunter.io/ios/app/rdvat/id6572291564)

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

**In-app purchases:** none


## Frequently asked questions

### Is HKfit one free?

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

### Is RDVat free?

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

### Do HKfit one or RDVat have ads?

Neither HKfit one nor RDVat shows ads.

### Which is updated more often, HKfit one or RDVat?

HKfit one ships an update every 3 weeks, and RDVat every 2 months. Most recently, HKfit one was updated on October 27, 2026 and RDVat on October 27, 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.*