Marées vs Forecast Alarm
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.
Forecast Alarm
Receive wind alerts based on custom thresholds and notification frequency. This app monitors multiple weather models to keep you informed about wind conditions.
- Custom wind threshold notifications
- Configurable notification frequency
- Monitors Arpège, Arome, GFS, ECMWF, Icon models
- Monitors NAM USA, NAM Puerto Rico, NAM Haiti models
- EULA available
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Set the wind threshold at which you want to receive a notification, configure the frequency of notifications and you can rest easy. Forecast Alarm monitors the Arpège, Arome, GFS, ECMWF, Icon, ECMWF AIFS, NAM USA, NAM Puerto Rico, NAM Haiti models for you. EULA: https://www.forecastalarm.fr/apple_eula_en.html
Screenshots
Verdict
The clearest difference is review sentiment: Forecast Alarm at 100% against Marées's 6%. Forecast Alarm also leads on price (Free vs $1.99) and update cadence (every 4 days vs every 3 weeks). Marées's advantage is in-app purchases (none vs 4) and iOS requirement (12.0 vs 16.4). On 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
Forecast Alarm is free to download; Marées costs $1.99 up front. Forecast Alarm sells 4 in-app purchases, starting at $5.99 per month. Marées asks for nothing beyond the download.
Marées ships an update every 3 weeks, Forecast Alarm every 4 days. Both last shipped on October 25, 2026.
| Parameter | Marées | Forecast Alarm |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 6.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 54 MB | 54 MB |
| Age rating | 17+ | 4+ |
| Developer | Christian Guine | Inia |
Customer experience
Marées
Forecast Alarm
In-app purchases
Marées
No in-app purchases
Forecast Alarm
- Abonnement Large Mensuel$5.991 Month
- Abonnement Large Plus Hebdomadaire$8.997 Days
- Annual Subscription$12.991 Year
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- Abonnement Large Annuel$17.991 Year
