# Storma vs iMarées

The clearest difference is review sentiment: Storma at 100% against iMarées's 31%. Storma also leads on price (Free vs $1.99) and rating (4.8 vs 3.1). iMarées's advantage is iOS requirement (15.0 vs 26.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Storma is free to download; iMarées costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Storma holds the better App Store score, 4.8 against 3.1. Both are backed by a comparable volume of ratings — 12 and 21 respectively. Written reviews point the same way: 100% of Storma's written reviews are positive against 31% of iMarées's.

Storma ships an update monthly, iMarées every 23 months. The most recent releases landed on September 3, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Storma | iMarées |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (12 ratings)](https://appshunter.io/ios/app/storma/id6471424410/reviews)** | [3.1 (21 ratings)](https://appshunter.io/ios/app/imarees/id6473684453/reviews) |
| Number of ratings | 12 | **21** |
| Positive reviews | **100.0% of reviews** | 30.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 23 months |
| Monetization | **Free** | Paid |
| Size | 72 MB | 50 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Pisano](https://appshunter.io/developer/1232617402) | [Digiplume](https://appshunter.io/developer/343573334) |

## What reviewers say

### Storma

[App page](https://appshunter.io/ios/app/storma/id6471424410)

Observe real-time thunderstorms globally with a live map and receive instant notifications for detected storms. Watch storms directly from your iPhone's lock screen or Dynamic Island.

**Highlights:** Real-time lightning strike map, Global storm observation, Customizable storm alerts, Live Activities integration, Lock screen storm viewing

**Features:** Apple Watch app

**In-app purchases:** none


### iMarées

[App page](https://appshunter.io/ios/app/imarees/id6473684453)

This app provides tide predictions for over 130 French ports, including times, coefficients, and water heights. It's ideal for sea-related activities like boating and shore fishing, offering offline functionality and convenient search options.

**Highlights:** Tide predictions for French ports, High and low tide times, Tide coefficients and water heights, Search by tide coefficient, Offline functionality, Geolocation for nearest port, Calendar reminders for strong tides

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Storma free?

Storma is free to download, with no in-app purchases.

### Is iMarées free?

iMarées costs $1.99, with no in-app purchases.

### Which has better reviews, Storma or iMarées?

Storma is rated higher. Storma averages 4.8 out of 5 from 12 ratings, while iMarées averages 3.1 from 21 ratings.

### Do Storma or iMarées have ads?

Neither Storma nor iMarées shows ads.

### Which is updated more often, Storma or iMarées?

Storma ships an update monthly, and iMarées every 23 months. Most recently, Storma was updated on September 3, 2026 and iMarées on September 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*