# Atlantic Control vs Stermay

Atlantic Control and Stermay are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Atlantic Control ships an update every 8 months, Stermay every 6 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Atlantic Control | Stermay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/atlantic-control/id6475638740/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 months** |
| Monetization | Free | — |
| Size | 59 MB | 69 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Atlantic Water Gardens](https://appshunter.io/developer/1139219423) | [JIANGSU YOUMAY ELECTRIC APPLIANCE CO.,LTD](https://appshunter.io/developer/1815199423) |

## What reviewers say

### Atlantic Control

[App page](https://appshunter.io/ios/app/atlantic-control/id6475638740)

This app consolidates control for various smart aquatic products, including ionizers, pumps, and lights. Users can effortlessly manage features like power, flow, ionization levels, and lighting sequences through a unified Bluetooth interface.

**Highlights:** Unified control for multiple smart products, Bluetooth connectivity, Manage pump flow and speed, Adjust ionization levels, Control color-changing lights, Set timer functions

**Features:** macOS Compatibility

**In-app purchases:** none


### Stermay

[App page](https://appshunter.io/ios/app/stermay/id6746110091)

**In-app purchases:** none


## Frequently asked questions

### Is Atlantic Control free?

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

### Is Stermay free?

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

### Do Atlantic Control or Stermay have ads?

Neither Atlantic Control nor Stermay shows ads.

### Which is updated more often, Atlantic Control or Stermay?

Atlantic Control ships an update every 8 months, and Stermay every 6 months. Most recently, Atlantic Control was updated on October 9, 2026 and Stermay on October 13, 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.*