Comparison

EGNOS vs CoNav

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EGNOS

Features
Read full description

The EGNOS application is a user-friendly tool designed to provide comprehensive access to information about the European Geostationary Navigation Overlay Service (EGNOS). It enables users to monitor real-time, historical, and forecasted performance data, access official EGNOS documentation, and explore guidelines and support materials tailored for different application domains, such as aviation, maritime, and land-based navigation. As Europe’s satellite-based augmentation system (SBAS), EGNOS enhances the accuracy, reliability, and integrity of GNSS signals, ensuring safer and more precise navigation. This is particularly crucial for sectors that require high levels of accuracy and safety, such as aviation. The EGNOS application serves as a gateway to key EGNOS services—Open Service (OS), Safety of Life (SoL), EGNOS SoL assisted service for Maritime Users (ESMAS) and EGNOS Data Access Service (EDAS)—helping users stay informed and maximize the benefits of EGNOS technology.

About

CoNav

This app provides essential tools for deck officers, including compass error calculation, celestial navigation, and ETA calculations. It offers offline functionality with precise algorithms for various maritime tasks, such as unit conversion and port information.

Highlights
  • Compass Error Calculation
  • Celestial Navigation
  • ETA Calculation
  • Port UN LOCODE Database
  • Units Converter
  • True Wind Calculation
  • Offline Functionality
Features
Read full description

Deck Officer's Tools: - Compass Error Calculation - Celestial Navigation - E.T.A Calculation - Port UN LOCODE - Units Converter - True Wind Calculation The app runs offline and all calculations are done within the app using precise and sophisticated algorithms. Compass Error Calculation 64 Celestial Objects. Precise bearing and altitude. Automatic calculation of magnetic variation. Complete calculation according to all requirements. Suitable for all types of ship logs. Hiding celestial objects below the horizon is available. Celestial Navigation Three position lines for calculating the ship's position. A function is available for mapping the lines of position and the calculated position of the vessel. The sunrise and sunset function is available as well as Twilight Nautical and Twilight Civil. E.T.A Calculation High precision Great user interface Vessel speed adjustment function Port UN LOCODE 18,000 seaports Brief information on the seaport Units Converter 15 Dimensions Volume Length Angle Mass Temperature Speed Duration Area Power Pressure Frequency Energy Electric Resistance El. Potential Difference Electric Current This app will save you a lot of time and allow you to steer your boat even more safely. If you have questions or suggestions, please email yvvofficial@yahoo.com or on the Instagram page conav_.

Screenshots

EGNOS4 screens
CoNav4 screens

Verdict

The call

The clearest difference is price: EGNOS at Free against CoNav's $6.99. EGNOS also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.0). CoNav's advantage is update cadence (every 3 weeks vs every 4 months). On ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

EGNOS is free to download; CoNav costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EGNOS ships an update every 4 months, CoNav every 3 weeks. The most recent releases landed on September 10, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
EGNOS versus CoNav: the parameters behind the verdict, then further details
ParameterEGNOSCoNav
PriceFree — better$6.99
Rating—4.0 (6 ratings) — better
Positive reviews—83.3% of reviews
Number of ratings—6 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better16.0
Further details — not scored
Size61 MB17 MB
Age rating4+4+
DeveloperEUROPEAN SATELLITE SERVICES PROVIDERVladyslav Yarmak

In-app purchases

None

EGNOS

No in-app purchases

None

CoNav

No in-app purchases

Questions

Is EGNOS free?
EGNOS is free to download, with no in-app purchases.
Is CoNav free?
CoNav costs $6.99, with no in-app purchases.
Do EGNOS or CoNav have ads?
Neither EGNOS nor CoNav shows ads.
Which is updated more often, EGNOS or CoNav?
EGNOS ships an update every 4 months, and CoNav every 3 weeks. Most recently, EGNOS was updated on September 10, 2026 and CoNav on September 29, 2026.

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