Comparison

Tides Planner vs Nautical Calculator Pro

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

Head to head
About

Tides Planner

Access worldwide tidal information for over 8,000 locations without an internet connection. Features include tidal graphs, weekly tables, sunrise/sunset times, and moon phases. Advanced tools help calculate optimal time windows for various water activities.

Highlights
  • Offline worldwide tide data
  • Tidal graphs and weekly tables
  • Sunrise, sunset, and moon phases
  • Time window calculations
  • Searchable location database
  • Currents information (select regions)
Features
Read full description

Essential TIDES tool for sailors, divers, canoeists, fishermen, surfers, swimmers, photographers and anyone involved with sport or leisure at the seaside. At the push of a button Tides Planner allows you to see tides for 8,000+ WORLDWIDE locations. NO CONNECTION REQUIRED as the app has its own database. One tap to tides for your favourites. Advanced users can take advantage of extensive tools to calculate time windows for entering/leaving and clearing depths. FEATURES - Tidal graphs - Week ahead tide table - Minimum/maximum depths - Chart depth/actual depth - Standard port information - Spinning globe for rapid location search - Search by name - Time of sunrise/sunset, dawn/twilight - Moon phases, rise/set - Date of spring/neap tides - Notepad and copy/paste + email - Favourites and recents - Scrolling scales - Coefficients (France) - Currents (UK, Ireland, North Sea, Netherlands and parts of the German coast) From version 3.0 enhanced predictions for Europe based on our own constituent analysis system. Other countries to follow. GEOGRAPHIC COVERAGE Worldwide coverage. Some countries have time limits from the national Hydrographic Office. TIME COVERAGE The app gives access to all its features, but the free initial download is limited to tides for one day. To get future predictions use the Extensions within the app (In App purchase): - Year on year: use the extensions within the app (In App purchases) to enable future predictions. - In certain countries get a Hydrographic Licence to remove restrictions. HYDROGRAPHIC OFFICE LICENCES During a valid year: - Italy, USA, Canada (main ports), Australia, New Zealand, Japan and other countries: ANY DAY in the year. - Denmark, Spain, Portugal, South Africa, Oman, Argentina: SEVEN DAYS at a time. The following can be extended with a Hydrographic Office Licence to remove country restrictions: - UK, Ireland, Germany and all UKHO ports: change from seven days to ANY DAY. - Netherlands: change from seven days to ANY DAY. - Belgium: change from seven days to ANY DAY. - France and SHOM ports: from one day to ANY DAY. Each Hydrographic Office Licence is ONLY PURCHASED ONCE and applies to all Valid Years. ABOUT US Imray: publishers of nautical charts, books and apps. Look out for other applications in the Marine Navigation Series from Imray. Follow us on Twitter: http://twitter.com/imray_charts Facebook/Imray-Laurie-Norie-Wilson-Ltd-304115312941493 LANGUAGES English, French, German, Italian, Spanish and Japanese ABOUT PREDICTIONS Predictions are based on the harmonic method, using constants from the Hydro offices (UKHO, SHOM, NOAA, BOM, CHS etc). There are differences between the app predictions and the official Hydro office tide tables, as these are based on large numbers of constants that are not made publicly available. The Hydro offices consider the harmonic methods used in this product appropriate for navigation. Always consult tidal curves and take into account local weather (pressure and wind) and swell conditions, which can have a very significant effect on sea water levels.

About

Nautical Calculator Pro

This app provides comprehensive tools for solving complex nautical navigation calculations, including route planning, celestial navigation, and tidal predictions. It features a world map for route visualization and offline functionality for map display.

Highlights
  • Route calculation
  • Point on Rhumb Line/Great Circle
  • Celestial navigation
  • Tidal calculations
  • Wind calculation
  • Nautical almanac
  • World map visualization
Features
Read full description

Nautical Calculator Pro is the most complete application that solves the navigation calculations The main features are : - Calculate Route (solves 2nd navigation problem) - Calculate point on Rhumb Line (solves 1st navigation problem) - Calculate point on Great Circle (solves 1st navigation problem) - Calculate point on WGS84 (solves 1st navigation problem) - Calculate Average speed - E.T.A. calculation - Route plan, for manual waypoints planning - Waypoint route - Compisite sailing with parallel limit - Rhumb Line Parallel/Meridian intersection - Follow on same Rhumb Line route - Opposite course rendez vous - Route correction - Calculate Amplitude at sunset and sunrise and magnetic compass deviation - Compass detections - Solves Drift problem - Solves Tides problem - Solves Tidal current problem - Wind calculation with Beaufort classification - ABC Tables (azimuth, initial course, right ascension with unknow star) - Nautical almanac - Celestial Navigation with position line - Meridian transit - Celestial observation - Coastal navigation - Wheel Over - Draft survey - Converter - Anchorage - Interpolation In routes feature there is a world map: it isn't a nautical chart and is not for use as a saling chart, but as a simple general means of showing the courses through the water on earth, this map isn't for navigational purposes. No need connection for show the map; the map will be downloaded only one time. The map, for size limit, will be show for scale over 60-70 Nm. follow on facebook https://www.facebook.com/NauticalCalculator

Screenshots

Tides Planner3 screens
Nautical Calculator Pro4 screens

Verdict

The call

The clearest difference is price: Tides Planner at Free against Nautical Calculator Pro's $8.99. Tides Planner also leads on ratings volume (17 vs 3) and iOS requirement (11.0 vs 15.0). Nautical Calculator Pro's advantage is rating (5.0 vs 3.8) and in-app purchases (none vs 14). On 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

Tides Planner is free to download; Nautical Calculator Pro costs $8.99 up front. Tides Planner sells 13 one-off in-app purchases. Nautical Calculator Pro asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Nautical Calculator Pro holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: Tides Planner has 17 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 39% of Tides Planner's written reviews are positive against 60% of Nautical Calculator Pro's.

UpkeepUpdate frequency

Tides Planner ships an update every 3 months, Nautical Calculator Pro every 2 months. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.

Scorecard7 real differences · 3 level
Tides Planner versus Nautical Calculator Pro: the parameters behind the verdict, then further details
ParameterTides PlannerNautical Calculator Pro
PriceFree — better$8.99
Rating3.8 (17 ratings)5.0 (3 ratings) — better
Positive reviews38.8% of reviews60.0% of reviews — better
Number of ratings17 — better3
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.0
Further details — not scored
Size93 MB27 MB
Age rating4+4+
DeveloperFB Imray Laurie Norie & Wilson GmbHGiacomo Gabriele

Customer experience

Tides Planner

All ratings17 ratings
Positive64.7%
Neutral11.8%
Negative23.5%
Written reviews289 reviews
Positive38.8%
Neutral10.7%
Negative50.5%

Nautical Calculator Pro

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

Bugs and requests

Tides Planner

Reported bugs

4 issues
  • Tide data inaccuracies
  • Crashes on startup
  • Inability to save/restore user preferences
  • Licensing issues preventing access to full features

Requested features

5 requests
  • Improved map/location functionality
  • Streamlined user interface
  • Ability to view tide data for multiple days without additional cost
  • Tidal current information
  • Sunrise/sunset data integration

Nautical Calculator Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

13 purchases

Tides Planner

One-time13
  • Tides 2012$1.99
  • Tides 2013$1.99
  • Tides 2014$1.99
Show 10 more
  • Tides 2020$3.99
  • Tides 2021$3.99
  • Tides 2015$3.99
  • Tides 2016$3.99
  • Tides 2017$3.99
  • Tides 2018$3.99
  • Tides 2019$3.99
  • Tides 2024$6.99
  • Tides 2026$6.99
  • Tides 2025$6.99
None

Nautical Calculator Pro

No in-app purchases

Questions

Is Tides Planner free?
Tides Planner is free to download, with in-app purchases available.
Is Nautical Calculator Pro free?
Nautical Calculator Pro costs $8.99, with no in-app purchases.
Which has better reviews, Tides Planner or Nautical Calculator Pro?
Nautical Calculator Pro is rated higher. Tides Planner averages 3.8 out of 5 from 17 ratings, while Nautical Calculator Pro averages 5.0 from 3 ratings.
Do Tides Planner or Nautical Calculator Pro have ads?
Neither Tides Planner nor Nautical Calculator Pro shows ads.
Which is updated more often, Tides Planner or Nautical Calculator Pro?
Tides Planner ships an update every 3 months, and Nautical Calculator Pro every 2 months. Most recently, Tides Planner was updated on October 31, 2026 and Nautical Calculator Pro on November 2, 2026.

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