# Simalai vs REEFB

The clearest difference is review sentiment: Simalai at 33% against REEFB's 0%. Simalai also leads on update cadence (every 3 weeks vs every 2 months). REEFB's advantage is iOS requirement (13.0 vs 16). 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.

Simalai ships an update every 3 weeks, REEFB every 2 months. The most recent releases landed on September 3, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Simalai | REEFB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/reefb/id6738972525/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 8 MB | 39 MB |
| Requires iOS | 16 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [华 李](https://appshunter.io/developer/872554875) | [CROWN P & E CO., LTD.](https://appshunter.io/developer/1783223891) |

## What reviewers say

### Simalai

[App page](https://appshunter.io/ios/app/simalai/id994853061)

This smart dosing pump system allows for precise liquid dispensing from 0.1ml to 999ml. Control dosing volume, frequency, and timing remotely via your mobile phone. Multiple units can be wirelessly combined for expanded functionality.

**Highlights:** Precise dosing from 0.1ml, Compact and small volume design, Mobile phone control for settings, Wireless combination of multiple pumps, Adjustable dosing frequency and time

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Simalai free?

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

### Is REEFB free?

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

### Do Simalai or REEFB have ads?

Neither Simalai nor REEFB shows ads.

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

Simalai ships an update every 3 weeks, and REEFB every 2 months. Most recently, Simalai was updated on September 3, 2026 and REEFB on September 24, 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.*