# Правила русского языка + vs Vipervision

Правила русского языка + and Vipervision 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. Правила русского языка + sells 1 one-off in-app purchase and Vipervision sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Правила русского языка + ships an update every 2 months, Vipervision every 6 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Правила русского языка + | Vipervision |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (27 ratings)](https://appshunter.io/ios/app/plus/id1169946909/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 53.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 11 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aleksei Mezhevikin](https://appshunter.io/developer/466321873) | [boyswithbeards](https://appshunter.io/developer/655746341) |

## What reviewers say

### Правила русского языка +

[App page](https://appshunter.io/ios/app/plus/id1169946909)

This app provides comprehensive rules of the Russian language with an intelligent search function. It's designed to help users understand and apply grammatical principles effectively. Contact developers via app settings for any inquiries.

**Highlights:** Russian language grammar rules, Intelligent search, Grammar explanations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Полная версия приложения | $1.99 | one-time |


### Vipervision

[App page](https://appshunter.io/ios/app/vipervision-snake-identifier/id6767580607)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $44.99 | per year |


## Frequently asked questions

### Is Правила русского языка + free?

Правила русского языка + is free to download, with in-app purchases available.

### Is Vipervision free?

Vipervision is free to download, with in-app purchases available.

### Do Правила русского языка + or Vipervision have ads?

Neither Правила русского языка + nor Vipervision shows ads.

### Which is updated more often, Правила русского языка + or Vipervision?

Правила русского языка + ships an update every 2 months, and Vipervision every 6 weeks. Most recently, Правила русского языка + was updated on November 2, 2026 and Vipervision on October 31, 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.*