Comparison

Coordinates Calculator Pro vs MOB

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

Head to head
About

Coordinates Calculator Pro

Calculate distances, bearings, and midpoints between geographic coordinates. Convert coordinates into multiple formats and manage pins on a map. Locate yourself, search for places, and share your findings.

Highlights
  • Calculate distance and bearing
  • Calculate midpoint
  • Coordinate conversion (DDD, GPS, Sexagesimal)
  • Map pin creation and management
  • Locate current position
  • Search for locations
  • Share and save coordinates
Features
Read full description

• Coordinates Calculator Pro is a great tool to calculate with coordinates. • Calculate the distance and bearing between two coordinates. • Calculate the coordinate by given start coordinate, distance and bearing. • Calculate the midpoint between two coordinates. • Convert your coordinates into 3 formats: - Decimal degrees (DDD.DDDDDD°) - GPS Format (DDD° MM.MMM′) - Sexagesimal (DDD° MM′ SS″) • Create (and move) pins on the map and calculate / convert the pin coordinates. • Extra functions: - Locate yourself and calculate / convert these coordinates - Search for locations - Share and send your coordinates - Display the coordinates on the maps app - Save and load coordinates to use them later - Various settings

About

MOB

This app duplicates your chartplotter's MOB button on your Apple Watch. It records your precise GPS location at sea, even without an internet connection, and guides you back to it. It's ideal for training or emergency situations, especially in low visibility.

Highlights
  • One-touch MOB button duplication
  • Records GPS point at sea
  • Works without internet
  • Displays course, distance, and time to point
  • Corrects MOB position
  • Useful for training and emergencies
Features
Read full description

This app duplicates the MOB button on your Chartplotter. It works without an iPhone or internet connection and can be launched with one touch on your Apple Watch. It takes a GPS point at the sea according to your direction and speed, and time delay for finding the signal. This way it always saves the exact GPS point where you pushed the button. It is constantly showing the true course to the point, distance to the point, and time at the water, since the point was set. The graphics in the app will help you see your position towards the point. If you fail to pick the person from the water you can correct his position by resetting position, while passing by. This application can provide essential assistance during training MOB on the water, especially at night or in restricted visibility conditions. All the coordinates are saved in the Watch memory and will be uploaded to iCloud. This way the last point is always saved in the memory of the watch and you will get your data even after the app restart.

Screenshots

Coordinates Calculator Pro4 screens

Verdict

The call

The clearest difference is review sentiment: MOB at 100% against Coordinates Calculator Pro's 50%. MOB also leads on rating (5.0 vs 4.3) and update cadence (every 4 days vs every 25 months). Coordinates Calculator Pro's advantage is ratings volume (7 vs 1). On ads, in-app purchases, monetization model 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

Coordinates Calculator Pro costs $3.99 and MOB $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

MOB holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Coordinates Calculator Pro has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Coordinates Calculator Pro's written reviews are positive against 100% of MOB's.

UpkeepUpdate frequency

Coordinates Calculator Pro ships an update every 25 months, MOB every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
Coordinates Calculator Pro versus MOB: the parameters behind the verdict, then further details
ParameterCoordinates Calculator ProMOB
Price$3.99$1.99 — better
Rating4.3 (7 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings7 — better1
Update frequencyEvery 25 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS12.0 — better13.0
Further details — not scored
Size1 MB1 MB
Age rating4+4+
DeveloperNicolas SchottenGleb Semerenko

Customer experience

Coordinates Calculator Pro

All ratings7 ratings
Positive71.4%
Neutral14.3%
Negative14.3%
Written reviews8 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

MOB

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Coordinates Calculator Pro

No in-app purchases

None

MOB

No in-app purchases

Questions

Is Coordinates Calculator Pro free?
Coordinates Calculator Pro costs $3.99, with no in-app purchases.
Is MOB free?
MOB costs $1.99, with no in-app purchases.
Which has better reviews, Coordinates Calculator Pro or MOB?
MOB is rated higher. Coordinates Calculator Pro averages 4.3 out of 5 from 7 ratings, while MOB averages 5.0 from 1 ratings.
Do Coordinates Calculator Pro or MOB have ads?
Neither Coordinates Calculator Pro nor MOB shows ads.
Which is updated more often, Coordinates Calculator Pro or MOB?
Coordinates Calculator Pro ships an update every 25 months, and MOB every 4 days. Most recently, Coordinates Calculator Pro was updated on October 24, 2026 and MOB on October 25, 2026.

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