# STEMAX Private vs Янтарь

The clearest difference is review sentiment: Янтарь at 100% against STEMAX Private's 17%. Янтарь also leads on update cadence (monthly vs every 55 months). 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.

STEMAX Private ships an update every 55 months, Янтарь monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | STEMAX Private | Янтарь |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id1461026989/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 16.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 55 months | **Monthly** |
| Monetization | Free | — |
| Size | 3 MB | 25 MB |
| Requires iOS | **12.0** | 13 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [НПП Стелс](https://appshunter.io/developer/1293122923) | [Vladimir Ageev](https://appshunter.io/developer/1461026988) |

## What reviewers say

### STEMAX Private

[App page](https://appshunter.io/ios/app/stemax-private/id1126250277)

This utility allows users to send SMS commands and make calls to Privat series controllers with a single button press. It provides a unified list of objects with detailed sections, event logs, and access to the controller's voice menu. Monitor temperature, SIM card balance, power status, and manage control outputs.

**Highlights:** Send SMS commands to controllers, Check controller status, View event logs, Access voice menu, Monitor temperature and balance, Manage control outputs

**Features:** macOS Compatibility

**In-app purchases:** none


### Янтарь

[App page](https://appshunter.io/ios/app/id1461026989)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is STEMAX Private free?

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

### Is Янтарь free?

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

### Do STEMAX Private or Янтарь have ads?

Neither STEMAX Private nor Янтарь shows ads.

### Which is updated more often, STEMAX Private or Янтарь?

STEMAX Private ships an update every 55 months, and Янтарь monthly. Most recently, STEMAX Private was updated on November 2, 2026 and Янтарь on November 3, 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.*