Marées vs Alplakes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Marées
Provides tide schedules, heights, and coefficients for over 150 French ports and some British ports. It operates autonomously, requiring internet only for updates and maps, and does not use geolocation data outside the app.
- Tide schedules for 150+ French ports
- Tide data for British ports
- Harmonic constants from Previ Mer
- Autonomous operation
- Customizable tide height thresholds
- Local time display (summer/winter)
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Schedule, heights and coefficients of the tides on more than 150 French ports and some ports in Great Britain. Application made from the harmonic constants provided by Previ Mer. It is completely autonomous: the internet connection is only used for updates and for displaying maps. No advertising. No use of geolocation data outside the application and only to locate the nearest port. All local times displayed are summer and winter times. The menu allows you to calculate the tides and give the specifics for a day Set your own threshold (minimum height for practicing navigation or maximum for fishing on foot). Ask for other ports if necessary. Thank you for sharing your comments in order to further improve the application.
Alplakes
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Alplakes, provided by the Swiss Federal Institute of Aquatic Science and Technology (Eawag) in collaboration with leading research partners, gives you instant access to the latest information on lakes across the European Alpine region. Stay informed with real-time conditions, forecasts, and long-term trends, all based on reliable, research-driven data. LAKE FORECASTS Access up to five days of temperature and velocity forecasts from hundreds of calibrated 1D & 3D hydrodynamic models. MEASUREMENTS Near real-time data from numerous sources across Europe, including water temperature, lake levels, webcams, and scientific datasets. WATER QUALITY MAPS Spatial water quality products derived from Sentinel-2, Sentinel-3, and Landsat remote sensing data. TRENDS Track changes over years to understand ecological and climate impacts. PARAMETERS Explore lake and catchment characteristics, including physical, chemical, and environmental parameters. Whether you’re a scientist, outdoor enthusiast, or lake lover, Alplakes makes complex data easy to explore. Get trusted insights from research partners—anywhere, anytime.
Screenshots
Verdict
The clearest difference is price: Alplakes at Free against Marées's $1.99. Alplakes also leads on update cadence (every 4 days vs every 3 weeks). On ads, in-app purchases, 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
Alplakes is free to download; Marées costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Marées ships an update every 3 weeks, Alplakes every 4 days. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.
| Parameter | Marées | Alplakes |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 6.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 54 MB | 7 MB |
| Age rating | 17+ | 17+ |
| Developer | Christian Guine | James Runnalls |
In-app purchases
Marées
No in-app purchases
Alplakes
No in-app purchases









