Dualog Admin vs Sea/calc distance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dualog Admin
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The Dualog Admin app is the enterprise mobility app that allows Dualog® Connection Suite™ administrative functions to be performed in a convenient, modern and safe manner. This app does NOT work in isolation and does not have in-app purchases. Dualog® Connection Suite™ is a maritime digital platform which ensures that internet, email and cloud services work reliably and securely onboard. Connection Suite is independent of specific airtime providers and specific communication equipment. Our ship software Connection Suite Ship acts as a “middleware” between user applications and the ships infrastructure. Dualog® Connection Suite™ comprises Business, Security and Control and Crew Services, all designed, developed and delivered as state-of-the art services to maritime shipping companies globally, with: 1. Dualog® Connection Suite™ Ship software with fleet-wide configuration from shore via dualog.net portal or Dualog Admin app. 2. Managed services at Dualog® Connection Suite™ Cloud, a highly secure and reliable datacentre. 3. Independent of airtime providers and equipment manufacturers. Functions currently available in the administration portal (dualog.net) will be alternatively available from the Dualog Admin app, and new functions might only be available in the app. This is to follow the trend that more and more users (and administrators) are using mobile devices (smartphones and tablets) instead of a personal computer. Because the Admin app is focused on administrative tasks, it requires administrator authentication to function. The users will be the same as the ones that currently have access to administer their vessels in dualog.net. The initial functionality is the Email Quarantine Administration.
Sea/calc distance
Calculate voyage distances, times, and costs between waypoints on a map. View arrival/departure times, bunker prices, and vessel routes on a timeline. Exclude waypoints for alternative routing.
- Plot routes on a map
- Calculate SECA distances
- Estimate voyage time
- View arrival/departure times
- Access daily bunker prices
- Display vessel route timeline
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Sea/calc distance allows users to plot a route on a map and calculate the distance (including SECA distances) and voyage time between a number of waypoints, which can be locations, vessel AIS positions or points on a map. - View arrival and departures times in different formats, including the local time at each of the locations in your route - Exclude certain waypoints to use a different routing option View and select from a list of daily bunker prices - Display vessel route in a timeline, showing where the vessel will be at any given time on the route
Screenshots
Verdict
The clearest difference is update cadence: Sea/calc distance at every 2 months against Dualog Admin's every 4 months. Dualog Admin's advantage is iOS requirement (9.0 vs 18.6). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Dualog Admin ships an update every 4 months, Sea/calc distance every 2 months. The most recent releases landed on September 14, 2026 and September 19, 2026 respectively.
| Parameter | Dualog Admin | Sea/calc distance |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 122 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Dualog AS | Maritech Services Limited |
In-app purchases
Dualog Admin
No in-app purchases
Sea/calc distance
No in-app purchases








