Comparison

Pirmam GPS Server vs NavCalc Dynamic

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

Head to head
About

Pirmam GPS Server

This application allows for the real-time monitoring of staff members' vehicle activities, including location, speed, and ignition status. It provides a comprehensive overview of actions taken and historical data for each vehicle.

Highlights
  • Monitor location
  • Monitor speed
  • Monitor bearing
  • Control car ignition
  • Monitor time of action
  • Real-time monitoring
Features
Read full description

Pirmam's GPS Application is used to monitor it's staff members' activities. read on for more! FEATURES: - Monitor location - Monitor speed - Monitor bearing - Monitor and control car ignition - Monitor time of action - Real-time Monitoring JUST IGNITE THE CAR AND LET THE GPS ADAPTER DO THE WORK Each car has it's own GPS adapter which is used for the monitoring and it is installed by Pirmam Group's technicians. REAL-TIME MONITORING GPS admin panel shows real-time data and history for each car.

About

NavCalc Dynamic

This app calculates the course and speed needed to counteract current and wind effects for navigation. It visually displays these calculations on a compass rose, dynamically updating as parameters change. Useful for learning and solving real-world sailing problems.

Highlights
  • Calculate Course to Steer (CtS)
  • Calculate Speed over Ground (SoG)
  • Visual compass rose display
  • Dynamic parameter updates
  • Magnetic variation input
  • Leeway and wind direction input
Features
Read full description

NavCalc is a simple navigation calculator. Given a desired heading, boat speed, and the set and drift of current, NavCalc will display the Course to Steer (CtS) and Speed over Ground (SoG) that will be achieved on that course given the current. NavCalc draws a neat little picture of the heading, current vector, and course to steer on a 360º compass rose which includes both degrees True and Magnetic (if you enter a Magnetic Variation). NavCalc also allows you to enter degrees of leeway and wind direction, and will take leeway into account when calculating the CtS. NavCalc will dynamically update the drawing as you change any of the parameters (heading, boat speed, current set or drift, variation). NavCalc can be used to solve navigation problems like the ones you might find on the tests for Coastal Navigation courses from US Sailing or ASA. It’s also useful for building intuition about how current affects your boat’s course and speed over ground (or velocity made good) since it updates dynamically as you change any parameter.

Screenshots

Pirmam GPS Server3 screens
NavCalc Dynamic1 screens

Verdict

The call

The clearest difference is update cadence: NavCalc Dynamic at every 6 days against Pirmam GPS Server's every 21 months. NavCalc Dynamic also leads on rating (5.0 vs 4.8). Pirmam GPS Server's advantage is ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

NavCalc Dynamic holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Pirmam GPS Server ships an update every 21 months, NavCalc Dynamic every 6 days. The most recent releases landed on June 1, 2026 and June 5, 2026 respectively.

Scorecard3 real differences · 7 level
Pirmam GPS Server versus NavCalc Dynamic: the parameters behind the verdict, then further details
ParameterPirmam GPS ServerNavCalc Dynamic
PriceFreeFree
Rating4.8 (4 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 21 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size22 MB15 MB
Age rating4+4+
DeveloperPirmam for information technology services ltdRichard Craddock

Customer experience

Pirmam GPS Server

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NavCalc Dynamic

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pirmam GPS Server

No in-app purchases

None

NavCalc Dynamic

No in-app purchases

Questions

Is Pirmam GPS Server free?
Pirmam GPS Server is free to download, with no in-app purchases.
Is NavCalc Dynamic free?
NavCalc Dynamic is free to download, with no in-app purchases.
Which has better reviews, Pirmam GPS Server or NavCalc Dynamic?
NavCalc Dynamic is rated higher. Pirmam GPS Server averages 4.8 out of 5 from 4 ratings, while NavCalc Dynamic averages 5.0 from 1 ratings.
Do Pirmam GPS Server or NavCalc Dynamic have ads?
Neither Pirmam GPS Server nor NavCalc Dynamic shows ads.
Which is updated more often, Pirmam GPS Server or NavCalc Dynamic?
Pirmam GPS Server ships an update every 21 months, and NavCalc Dynamic every 6 days. Most recently, Pirmam GPS Server was updated on June 1, 2026 and NavCalc Dynamic on June 5, 2026.

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