# FluvalSmart vs Weights Converter

The clearest difference is review sentiment: Weights Converter at 100% against FluvalSmart's 27%. Weights Converter also leads on update cadence (daily vs every 2 months). FluvalSmart's advantage is price (Free vs $0.99) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

FluvalSmart is free to download; Weights Converter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FluvalSmart ships an update every 2 months, Weights Converter daily. The most recent releases landed on September 26, 2026 and August 23, 2026 respectively.

## The numbers

| Metric | FluvalSmart | Weights Converter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.5 (503 ratings)](https://appshunter.io/ios/app/fluvalsmart/id1179249357/reviews)** | — |
| Number of ratings | **503** | — |
| Positive reviews | 27.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | **Free** | Paid |
| Size | 12 MB | 1 MB |
| Requires iOS | **9.0** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rolf C Hagen Inc.](https://appshunter.io/developer/1321403702) | [Matthew Davis](https://appshunter.io/developer/1745002087) |

## What reviewers say

### FluvalSmart

[App page](https://appshunter.io/ios/app/fluvalsmart/id1179249357)

Control Fluval Bluetooth LED aquarium lights with your iOS device. Adjust colors, create custom lighting schedules, and simulate dynamic effects like cloud cover and storms. Compatible with various Fluval LED models.

**Highlights:** BLE 4.0 control, Manual, Auto, Pro modes, Independent color channel control, Preset lighting configurations, Dynamic lighting effects

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ⭐ Great light
- 🌟 Customizable lighting
- 💡 Helpful app features
- 👍 Easy to use

**What reviewers complain about**

- 🐛 Buggy app
- 🤯 Confusing UI
- 🕰️ Difficult to set precise times
- 🔌 Unreliable Bluetooth connection

**Reported bugs**

- App crashes during firmware updates
- Saved settings get reset unexpectedly
- Bluetooth connection issues after power cycles

**Requested features**

- Add ability to turn lights off completely at night
- Allow more customization of sunrise/sunset colors
- Implement weekly scheduling options
- Improve app stability and responsiveness


### Weights Converter

[App page](https://appshunter.io/ios/app/weights-converter/id6502307943)

Instantly convert between various units of weight. Add multiple weight combinations and perform conversions quickly and easily.

**Highlights:** Instant weight unit conversion, Supports multiple weight combinations, Simple and quick interface, Add custom weights

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FluvalSmart free?

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

### Is Weights Converter free?

Weights Converter costs $0.99, with no in-app purchases.

### Do FluvalSmart or Weights Converter have ads?

Neither FluvalSmart nor Weights Converter shows ads.

### Which is updated more often, FluvalSmart or Weights Converter?

FluvalSmart ships an update every 2 months, and Weights Converter daily. Most recently, FluvalSmart was updated on September 26, 2026 and Weights Converter on August 23, 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.*