# iMar vs Lineup Surf Forecast

The clearest difference is review sentiment: Lineup Surf Forecast at 100% against iMar's 29%. Lineup Surf Forecast also leads on update cadence (every 2 weeks vs every 10 months). iMar's advantage is monetization model (free vs ad-supported) and iOS requirement (10.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

iMar ships an update every 10 months, Lineup Surf Forecast every 2 weeks. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | iMar | Lineup Surf Forecast |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 29.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 151 MB | 60 MB |
| Requires iOS | **10.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Puertos del Estado](https://appshunter.io/developer/1077674067) | [Diego Iglesias](https://appshunter.io/developer/1554147129) |

## What reviewers say

### iMar

[App page](https://appshunter.io/ios/app/imar/id545093470)

Access real-time and forecasted sea conditions across Spain. View detailed data on waves, sea level, wind, and temperature for various locations. Includes animated forecasts and an alert system for coastal conditions.

**Highlights:** Real-time sea state data, Multi-day sea condition forecasts, Detailed oleaje, level, wind, and temperature data, Favorite location management, Animated wind and wave forecasts, Coastal alert system

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Lineup Surf Forecast

[App page](https://appshunter.io/ios/app/lineup-surf-forecast/id1554147127)

Plan your surf sessions with reliable and intuitive forecasts. This app provides detailed swell, tide, and weather predictions tailored to your specific surf spots, helping you catch the best waves.

**Highlights:** Spot-specific swell forecasts, 7-day NOAA, GFS, WAM, HARMONIE-AROME predictions, Real-time buoy data and alerts, Interactive swell map, Live webcam access, Favorite spots, Water temperature and solar schedule

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iMar free?

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

### Is Lineup Surf Forecast free?

Lineup Surf Forecast is free to download, with no in-app purchases.

### Do iMar or Lineup Surf Forecast have ads?

Neither iMar nor Lineup Surf Forecast shows ads.

### Which is updated more often, iMar or Lineup Surf Forecast?

iMar ships an update every 10 months, and Lineup Surf Forecast every 2 weeks. Most recently, iMar was updated on October 23, 2026 and Lineup Surf Forecast on October 10, 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.*