# Навигационная линейка vs ВПХ Ил

The clearest difference is in-app purchases: ВПХ Ил at none against Навигационная линейка's 1. ВПХ Ил also leads on update cadence (every 3 days vs every 5 months). Навигационная линейка's advantage is iOS requirement (11.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Навигационная линейка sells 1 one-off in-app purchase. ВПХ Ил asks for nothing beyond the download.

Навигационная линейка ships an update every 5 months, ВПХ Ил every 3 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Навигационная линейка | ВПХ Ил |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id1528938414/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 78.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 3 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grigorii Ovinkin](https://appshunter.io/developer/1448812067) | [Pavel Mashchenko](https://appshunter.io/developer/1737213357) |

## What reviewers say

### Навигационная линейка

[App page](https://appshunter.io/ios/app/id1528938414)

This app is a digital replica of the Soviet NL-10m navigation slide rule. It's designed for flight and navigation calculations using logarithmic principles. Beyond the slide rule, it offers tools for solving specific navigation problems.

**Highlights:** Digital NL-10m slide rule, Logarithmic scale calculations, Flight and navigation tasks, Specific navigation problem solver

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Отключение рекламы | $1.99 | one-time |


### ВПХ Ил

[App page](https://appshunter.io/ios/app/76/id6479754544)

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

**In-app purchases:** none


## Frequently asked questions

### Is Навигационная линейка free?

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

### Is ВПХ Ил free?

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

### Do Навигационная линейка or ВПХ Ил have ads?

Neither Навигационная линейка nor ВПХ Ил shows ads.

### Which is updated more often, Навигационная линейка or ВПХ Ил?

Навигационная линейка ships an update every 5 months, and ВПХ Ил every 3 days. Most recently, Навигационная линейка was updated on November 3, 2026 and ВПХ Ил on November 4, 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.*