Comparison

Tide Charts vs Mareas

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

Head to head
About

Tide Charts

Access worldwide tidal estimates, lunar data, and weather forecasts. Plan outdoor adventures with ease using current radar and offline predictions. Supports Apple Watch and includes a Today Extension for quick access.

Highlights
  • Worldwide tidal estimates
  • Lunar data
  • Weather forecast
  • Current radar
  • Offline predictions
  • Favorite station management
  • Apple Watch support
Features
Currently charting
Read full description

Finally a beautiful and simple way to view tides on your mobile device! In addition to worldwide tidal estimates at tide stations, you can see the lunar data, weather forecast, and current radar making your next outdoor adventure as easy to plan as possible. By default, the application will pick the closest tide station to you, but picking a different tide or weather station is as easy as viewing a map of your current location. You can also setup and quickly switch between many stored favorite stations if you need to. No internet access while outdoors? No problem. This app has been designed to give you tidal and lunar predictions without internet access! Tides at a glance • A clear chart of the whole day, with the current height marked and daylight hours shaded (lunar rise and set is the small gray bar on the bottom) • The times and heights of every high and low tide • Swipe left or right to move through the days, or pick a date on the calendar • Swipe down to see sunrise, sunset, moonrise, moonset and the phase of the moon • Subscribe for tide alerts that notify you before a chosen high or low tide • Home Screen widgets with today's tides and the next tide Worldwide Tidal Stations • Nearly 8,000 stations, from the coasts of the United States and Canada to Europe, Japan, Korea, Taiwan, Southeast Asia, Australia, New Zealand, South America and the Pacific islands • Find the nearest station with one tap, search by name, or browse the map, with satellite imagery when you want it • Keep your favorites one tap away Adjustable Height to Match Your Local Tide Table • Heights use the datum your local charts and tables use: MLLW in the United States, chart datum in Canada, Japan and Korea, LAT in Europe and Australia, MLWS in Peru and Ecuador (or you can choose your own from Mean Sea Level, MLLW, MLW, MLWS or LAT) Weather and Radar • Weather forecast is included for the station's location, with wind, temp, precipitation, and the day's high and low • Animated rain radar with a scrubber, so you can see what is coming Apple Watch • A full-screen tide chart on Apple Watch: turn the Digital Crown to step through highs, lows, sunrise, sunset and moon times, or drag to scrub through the next 30 days • Complications for every watch face, from a tide gauge to a chart of the next 24 hours, in the color you choose • Your favorite and nearby stations, with the current height and the next tide Tides is free with ads, however we do offer a one-time purchase to remove them if you would rather a clean distraction free experience.

About

Mareas

Access tide information for Spanish ports offline. View tide status, current height, and upcoming high/low tides. Includes home screen widgets and Apple Watch support.

Highlights
  • Offline tide data for Spanish ports
  • Current tide status (rising/falling)
  • Tide height and coefficients
  • Upcoming high and low tides
  • Home screen and lock screen widgets
  • Apple Watch companion app
  • Siri integration for tide queries
Features
Read full description

Mareas es una aplicación que te permite consultar rápidamente las mareas en cualquiera de los puertos españoles. Rápidamente podrás consultar el estado de la marea (subiendo / bajando), la altura actual, e información sobre los coeficientes, próximas pleamar y bajamar. La aplicación funciona de forma offline, por lo que no necesitarás conexión a internet en ningún momento. Mareas ofrece widgets para la pantalla de inicio y la pantalla de bloqueo para que puedas consultar en todo momento el estado de la marea sin necesidad de abrir la aplicación, así como una versión para Apple Watch. También podrás consultar a Siri el estado y altura de la marea y te dará la respuesta. ** Los datos de la aplicación son los proporcionados de forma pública por el Instituto Hidrográfico de la Marina, publicados en el Anuario de Mareas del año en curso. **

Screenshots

Tide Charts4 screens
Mareas2 screens

Verdict

The call

The clearest difference is in-app purchases: Mareas at none against Tide Charts's 1. Mareas also leads on ads (none vs shown). Tide Charts's advantage is update cadence (every 3 weeks vs every 3 months) and chart position (#27 vs unranked). On price, review sentiment, device support and iOS requirement 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. Tide Charts sells 1 one-off in-app purchase. Mareas asks for nothing beyond the download.

UpkeepUpdate frequency

Tide Charts ships an update every 3 weeks, Mareas every 3 months. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

Scorecard5 real differences · 6 level
Tide Charts versus Mareas: the parameters behind the verdict, then further details
ParameterTide ChartsMareas
PriceFreeFree
Rating4.8 (113K ratings) — better—
Positive reviews68.5% of reviews71.4% of reviews — better
Number of ratings113K — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#27 — better—
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS15.115.0 — better
Further details — not scored
Size104 MB56 MB
Age rating4+4+
Developer7th GearRuben Fernandez

Customer experience

Tide Charts

All ratings113,466 ratings
Positive95.9%
Neutral2.3%
Negative1.8%
Written reviews508 reviews
Positive68.5%
Neutral6.9%
Negative24.6%

Mareas

Written reviews14 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

Bugs and requests

Tide Charts

Reported bugs

4 issues
  • Tide data off by several hours
  • Tide graph not displaying correctly
  • App crashing on ad dismissal
  • Apple Watch complications freezing

Requested features

5 requests
  • Ability to set custom locations
  • Improved accuracy and data sources
  • Option to purchase ad-free version
  • Landscape mode support
  • More detailed tide height information

Mareas

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Tide Charts

One-time1
  • Remove Ads$1.99
None

Mareas

No in-app purchases

Questions

Is Tide Charts free?
Tide Charts is free to download, with in-app purchases available.
Is Mareas free?
Mareas is free to download, with no in-app purchases.
Do Tide Charts or Mareas have ads?
Tide Charts shows ads; Mareas does not.
Which is updated more often, Tide Charts or Mareas?
Tide Charts ships an update every 3 weeks, and Mareas every 3 months. Most recently, Tide Charts was updated on October 19, 2026 and Mareas on October 17, 2026.

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