Comparison

Qastor vs Port Activity App

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

Head to head
About

Qastor

Features
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Qastor is a professional marine navigation and pilotage tool for maritime pilots. It combines high-precision positioning, live AIS traffic, and detailed nautical charts to support safe passage through harbors, ports, and confined waters. Built for the demands of real-time pilotage, Qastor gives you the situational awareness you need, accurate vessel position and heading, under-keel clearance, predicted tracks, and berth approach information, all on a portable display you can bring aboard any ship. Key features: Real-time AIS display of surrounding vessel traffic High-accuracy GPS positioning and heading Detailed nautical charts with depth and tidal information Docking and berth approach support Route and passage planning Works offline, independent of the ship's own systems Trusted by marine pilots for navigation in some of the world's busiest ports and waterways.

About

Port Activity App

Features
Read full description

The basic principle of the Port activity application is that port actors share their estimated and actual times regarding certain states in the port call process as a minimum set of data. The information sharing is to support collaborative decision making and improving information exchange between port actors, hinterland operators and ships. A large number of phone calls and emails between port actors will be reduced to a minimum with Port activity application system adding to time savings in the movement of goods. The exchange of information will avoid bottlenecks that occur in the information flow today.

Screenshots

Qastor3 screens
Port Activity App4 screens

Verdict

The call

The clearest difference is in-app purchases: Port Activity App at none against Qastor's 3. On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Qastor sells 3 in-app purchases, starting at $619.00 per year. Port Activity App asks for nothing beyond the download.

UpkeepUpdate frequency

Qastor ships an update every 3 months, Port Activity App every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard1 real difference · 5 level
Qastor versus Port Activity App: the parameters behind the verdict, then further details
ParameterQastorPort Activity App
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size257 MB64 MB
Age rating4+4+
DeveloperQuality Positioning ServicesLiikenteenohjausyhtio Fintraffic Oy

In-app purchases

3 purchases

Qastor

Subscriptions2
  • Navigation$619.001 Year
  • Navigation + Docking$989.001 Year
One-time1
  • 14-day TrialFree
None

Port Activity App

No in-app purchases

Questions

Is Qastor free?
Qastor is free to download, with in-app purchases available.
Is Port Activity App free?
Port Activity App is free to download, with no in-app purchases.
Do Qastor or Port Activity App have ads?
Neither Qastor nor Port Activity App shows ads.
Which is updated more often, Qastor or Port Activity App?
Qastor ships an update every 3 months, and Port Activity App every 5 months. Most recently, Qastor was updated on November 2, 2026 and Port Activity App on November 3, 2026.

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