# REEFB vs KHG

The clearest difference is update cadence: KHG at every 2 weeks against REEFB's every 2 months. REEFB's advantage is iOS requirement (13.0 vs 15.0). 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.

REEFB ships an update every 2 months, KHG every 2 weeks. The most recent releases landed on September 24, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | REEFB | KHG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/reefb/id6738972525/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 39 MB | 3 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CROWN P & E CO., LTD.](https://appshunter.io/developer/1783223891) | [Hua Sen Cheng](https://appshunter.io/developer/1895616663) |

## What reviewers say

### REEFB

[App page](https://appshunter.io/ios/app/reefb/id6738972525)

This app offers intelligent control for REEF B Series devices, simplifying aquarium management. It allows for effortless monitoring and maintenance of aquaculture equipment and schedules via Bluetooth connectivity.

**Highlights:** Dosing modes: 24-hour average, custom, single-dose, Precise dosing calibration, Flexible schedule adjustment, Multi-device management via Bluetooth, Accurate spectrum scheduling for LED lights, Master-sub synchronization for lights, Scene modes for LED lights

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

**In-app purchases:** none


### KHG

[App page](https://appshunter.io/ios/app/khg/id6764055087)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is REEFB free?

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

### Is KHG free?

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

### Do REEFB or KHG have ads?

Neither REEFB nor KHG shows ads.

### Which is updated more often, REEFB or KHG?

REEFB ships an update every 2 months, and KHG every 2 weeks. Most recently, REEFB was updated on September 24, 2026 and KHG on September 11, 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.*