# Навигационная линейка vs TimeFlight

The clearest difference is in-app purchases: TimeFlight at none against Навигационная линейка's 1. TimeFlight also leads on update cadence (every 5 days vs every 5 months) and review sentiment (100% vs 79%). Навигационная линейка's advantage is device support (3 vs 1) and ratings volume (3 vs 1). On price, rating and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Навигационная линейка against 5.0 for TimeFlight. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews are what separate them: 79% of Навигационная линейка's written reviews are positive against 100% of TimeFlight's.

Навигационная линейка ships an update every 5 months, TimeFlight every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Навигационная линейка | TimeFlight |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/id1528938414/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/timeflight/id6771623756/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 78.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 30 MB | 9 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Grigorii Ovinkin](https://appshunter.io/developer/1448812067) | [Yana Khalikova](https://appshunter.io/developer/6771623758) |

## 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 |


### TimeFlight

[App page](https://appshunter.io/ios/app/timeflight/id6771623756)

This app helps pilots track flight exercises and duty periods, providing timely reminders to maintain currency and avoid losing pilot privileges. It offers detailed logging, synchronization across devices, and a commander mode for oversight.

**Highlights:** Flight exercise tracking, Automated duty period calculation, Customizable reminders, Flight log with aircraft details, Cross-device synchronization, Commander mode for oversight

**In-app purchases:** none


## Frequently asked questions

### Is Навигационная линейка free?

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

### Is TimeFlight free?

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

### Which has better reviews, Навигационная линейка or TimeFlight?

Навигационная линейка and TimeFlight are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Навигационная линейка or TimeFlight have ads?

Neither Навигационная линейка nor TimeFlight shows ads.

### Which is updated more often, Навигационная линейка or TimeFlight?

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