# SailTimer™ vs SEAiq

The clearest difference is review sentiment: SEAiq at 61% against SailTimer™'s 37%. SEAiq also leads on update cadence (every 3 weeks vs every 2 months). SailTimer™'s advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. SailTimer™ sells 12 in-app purchases, starting at $2.99 per month and SEAiq sells 2 in-app purchases, starting at $15.00 per year. Whichever you choose, the download price is not the number that matters.

SailTimer™ ships an update every 2 months, SEAiq every 3 weeks. The most recent releases landed on October 12, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | SailTimer™ | SEAiq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (193 ratings)](https://appshunter.io/ios/app/seaiq/id529514298/reviews)** |
| Number of ratings | — | **193** |
| Positive reviews | 37.0% of reviews | **61.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 126 MB | 53 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SailTimer Inc.](https://appshunter.io/developer/326309854) | [Sakhalin](https://appshunter.io/developer/517213477) |

## What reviewers say

### SailTimer™

[App page](https://appshunter.io/ios/app/sailtimer/id326309851)

Visualize wind and wave conditions before you head out on the water with this marine weather app. It uses crowdsourced data for more accurate, real-time forecasts than traditional satellite imagery. Track your GPS, create waypoints, and access offline charts for any boat type.

**Highlights:** Crowdsourced wind and wave map animation, Route viewing with aerial photos and land maps, Waypoint creation and GPS track saving, Offline map and chart usage, Follow-Me GPS tracking, Optimal tacking distance calculation for sailboats

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WNI Marine Weather Map | $2.99 | per month |
| Wind Animation | $2.99 | per month |
| Navionics Charts | $10.99 | per year |
| ActiveCaptain | Free | one-time |
| Polar Plot Learning | Free | one-time |
| Import NMEA data | $0.99 | one-time |
| SailTimer Pro Bundle | $7.99 | one-time |
| USA Atlantic Coast | $15.99 | one-time |
| USA Pacific Coast | $15.99 | one-time |
| USA Great Lakes | $15.99 | one-time |
| USA Gulf Coast | $15.99 | one-time |
| Cuba, Bahamas, Puerto Rico and US Virgin Islands | $15.99 | one-time |


### SEAiq

[App page](https://appshunter.io/ios/app/seaiq/id529514298)

This marine navigation app offers comprehensive charting capabilities, allowing users to load various standard chart formats and download NOAA charts. It includes essential navigation tools like waypoints, routes, and an anchor alarm, along with weather overlays and NMEA/AIS integration.

**Highlights:** Load custom S-57, S-63, iENC, BSB, KAP charts, Automatic NOAA chart downloads, Waypoints, routes, and tracks, Anchor alarm, Automatic weather downloads, NMEA and AIS integration

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Annual | $15.00 | per year |
| Upgrade for Premium Features | $49.99 | one-time |

**What reviewers like**

- 👍 Highly reliable navigation app
- 💡 Tons of features
- ✨ Clean and sensical interface
- 🚀 Versatile for plotting routes/waypoints
- 📊 Estimating AIS target crossing range

**What reviewers complain about**

- 😩 Tedious to plot a course
- 🔧 Complicated chart setup initially
- 🤔 Not user friendly
- 📚 Instructions not very helpful
- ⏳ Time wasted on simple things

**Reported bugs**

- No access to premium features after payment
- Chart downloads fail if app is not on screen
- App freezes when trying to delete
- App crashes

**Requested features**

- Simplify course plotting
- Add support for .MBTiles
- Add VMG feature
- Add support for .MBTiles
- Add support for .MBTiles


## Frequently asked questions

### Is SailTimer™ free?

SailTimer™ is free to download, with in-app purchases available.

### Is SEAiq free?

SEAiq is free to download, with in-app purchases available.

### Do SailTimer™ or SEAiq have ads?

Neither SailTimer™ nor SEAiq shows ads.

### Which is updated more often, SailTimer™ or SEAiq?

SailTimer™ ships an update every 2 months, and SEAiq every 3 weeks. Most recently, SailTimer™ was updated on October 12, 2026 and SEAiq on October 11, 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.*