# Плюс и Минус vs Primatrix

Плюс и Минус and Primatrix are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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.

## The numbers

| Metric | Плюс и Минус | Primatrix |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 6 days |
| Monetization | Free | — |
| Size | 3 MB | 39 MB |
| Requires iOS | 13.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Igor Fuchkin](https://appshunter.io/developer/901823223) | [Alexey Andreev](https://appshunter.io/developer/1622101276) |

## What reviewers say

### Плюс и Минус

[App page](https://appshunter.io/ios/app/id1485731793)

This educational game helps children develop automatic mental math skills. It systematically trains logical thinking, memory, and attention for preschoolers and early elementary students.

**Highlights:** Develops automatic mental math skills, Enhances logical thinking, Strengthens memory and attention, Suitable for preschoolers, Aimed at early elementary students

**In-app purchases:** none


### Primatrix

[App page](https://appshunter.io/ios/app/primatrix/id6740640856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Плюс и Минус free?

Плюс и Минус is free to download, with no in-app purchases.

### Is Primatrix free?

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

### Do Плюс и Минус or Primatrix have ads?

Neither Плюс и Минус nor Primatrix shows ads.

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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.*