Comparison

Qastor vs MSI MAP

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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A precise navigation software for piloting and docking, and with Under Keel Clearance capability and modes customized to specific, critical operations, Qastor also supports high-resolution overlays to expand navigable water, and real-time meteorological updates via the Connect Server, resulting in optimal situational awareness for pilots.

About

MSI MAP

Features
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Bring your passage into the app, keep only the navigational warnings that actually touch it, and carry them over to the ECDIS. NAVAREA and coastal NAVTEX warnings are plotted on a world map whose coastline is bundled inside the app — no tile server, and the last warnings you pulled stay readable with no connection. WARNINGS ALONG YOUR ROUTE — MSI PRO · Import a route file (RTZ, GPX, CSV or JSON) and see it drawn under the warning pins · Keep only the warnings within 100, 200 or 300 nm of that route and clear the rest away · Re-fetch every source on demand, instead of the free once-daily cycle EXPORT TO THE ECDIS — MSI PRO Warnings are carried over as latitude/longitude lines with text marks, ready to open on the bridge. · JRC user map (.uchm) — native format · GPX · Furuno user chart (beta) WARNING SOURCES · NGA — worldwide NAVAREA plus HYDROLANT, HYDROPAC and HYDROARC · Coastal NAVTEX, collected automatically from seven countries — the United States (USCG), Australia (AMSA), Japan (JCG/MSIL), Taiwan (MOTC), Hong Kong (Marine Department), Finland (Traficom) and Denmark (DMA Niord) · NAVAREA III — Spain (IHM) · Korea (KHOA) — collected as well once you enter your own free data.go.kr service key in Settings THE MAP · Fully offline vector coastline at three levels of detail, three bathymetry bands, national boundaries and 167 place labels covering major ports, straits and canals · Coordinates and areas are extracted from the warning text and drawn as points, circles, polygons and tracklines · Filter by NAVAREA, by geometry type, and by NAVAREA versus coastal NAVTEX · Place and port search in English, with no network call · Your own GPS position on the chart CHANGE HISTORY Compares each refresh with the one before it and lists what is new, what was cancelled and what changed. DEPARTURE BRIEFING SHEET Print the current list to an A4 PDF. Free. MSI PRO IS A ONE-TIME PURCHASE Not a subscription. Restores on a new device with Restore Purchase under the same store account. The map, the warning list, the change history and the briefing sheet are free. LOCATION GPS is read only when you tap the my-position button, and only while the app is in the foreground. It is used solely to draw your own position on the chart on this device — it is never sent to a server, never stored as a history, and never collected in the background. Decline the location permission and everything else keeps working. There are no push notifications. Refresh is checked when you open the app or return to it. English and Korean. Note — for reference only. Not for navigation. Not a substitute for GMDSS receiving equipment or official notices to mariners.

Screenshots

Qastor3 screens
MSI MAP4 screens

Verdict

The call

The clearest difference is update cadence: MSI MAP at every 3 weeks against Qastor's every 2 months. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Qastor sells 3 in-app purchases, starting at $619.00 per year and MSI MAP sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Qastor ships an update every 2 months, MSI MAP every 3 weeks. The most recent releases landed on September 18, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 5 level
Qastor versus MSI MAP: the parameters behind the verdict, then further details
ParameterQastorMSI MAP
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.5
Further details — not scored
Size257 MB44 MB
Age rating4+4+
DeveloperQuality Positioning Services (Q.P.S.) B.V.JIWON SEO

In-app purchases

3 purchases

Qastor

Subscriptions2
  • Navigation$619.001 Year
  • Navigation + Docking$989.001 Year
One-time1
  • 14-day TrialFree
4 purchases

MSI MAP

One-time4
  • 500 Points$3.99
  • MSI MAP Pro$6.99
  • 1,200 Points$9.99
Show 1 more
  • 3,000 Points$19.99

Questions

Is Qastor free?
Qastor is free to download, with in-app purchases available.
Is MSI MAP free?
MSI MAP is free to download, with in-app purchases available.
Do Qastor or MSI MAP have ads?
Neither Qastor nor MSI MAP shows ads.
Which is updated more often, Qastor or MSI MAP?
Qastor ships an update every 2 months, and MSI MAP every 3 weeks. Most recently, Qastor was updated on September 18, 2026 and MSI MAP on October 16, 2026.

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