# KORElab vs RDBuds

The clearest difference is update cadence: RDBuds at every 2 weeks against KORElab's every 2 months. RDBuds also leads on iOS requirement (12.0 vs 15). 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.

KORElab ships an update every 2 months, RDBuds every 2 weeks. The most recent releases landed on September 2, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | KORElab | RDBuds |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 91 MB | 251 MB |
| Requires iOS | 15 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KORElab Performance](https://appshunter.io/developer/1834538237) | [深圳市润德智能通讯科技有限公司](https://appshunter.io/developer/1761719783) |

## What reviewers say

### KORElab

[App page](https://appshunter.io/ios/app/korelab/id6749638135)

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

**In-app purchases:** none


### RDBuds

[App page](https://appshunter.io/ios/app/rdbuds/id6753889637)

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

**In-app purchases:** none


## Frequently asked questions

### Is KORElab free?

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

### Is RDBuds free?

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

### Do KORElab or RDBuds have ads?

Neither KORElab nor RDBuds shows ads.

### Which is updated more often, KORElab or RDBuds?

KORElab ships an update every 2 months, and RDBuds every 2 weeks. Most recently, KORElab was updated on September 2, 2026 and RDBuds on September 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.*