# SLcontrol vs TUNZE

The clearest difference is ads: SLcontrol at none against TUNZE's shown. On price, update cadence, 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.

SLcontrol ships an update every 5 weeks, TUNZE every 2 months. The most recent releases landed on September 10, 2026 and July 8, 2026 respectively.

## The numbers

| Metric | SLcontrol | TUNZE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 106 MB | 67 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Malgorzata Waszczuk](https://appshunter.io/developer/1636348046) | [fynix GmbH](https://appshunter.io/developer/1733023937) |

## What reviewers say

### SLcontrol

[App page](https://appshunter.io/ios/app/slcontrol/id1636348044)

**Features:** macOS Compatibility

**In-app purchases:** none


### TUNZE

[App page](https://appshunter.io/ios/app/tunze/id6499044488)

Control TUNZE devices like pumps and controllers from a central app. It offers analysis and maintenance features for marine aquariums, helping to stabilize water chemistry and technology for a healthy environment.

**Highlights:** Centralized device control, Pump and controller management, Intelligent accessory features, Water chemistry analysis, Maintenance tracking, Marine aquarium companion

**Features:** macOS Compatibility, Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is SLcontrol free?

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

### Is TUNZE free?

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

### Do SLcontrol or TUNZE have ads?

TUNZE shows ads; SLcontrol does not.

### Which is updated more often, SLcontrol or TUNZE?

SLcontrol ships an update every 5 weeks, and TUNZE every 2 months. Most recently, SLcontrol was updated on September 10, 2026 and TUNZE on July 8, 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.*