# Tide Charts vs SeaState

The clearest difference is ads: SeaState at none against Tide Charts's shown. SeaState also leads on rating (5.0 vs 4.8). Tide Charts's advantage is ratings volume (115K vs 3) and review sentiment (69% vs 50%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Tide Charts sells 1 one-off in-app purchase and SeaState sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

SeaState holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Tide Charts has 115K ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 69% of Tide Charts's written reviews are positive against 50% of SeaState's, so the app with the better star average is not the one people write more warmly about.

Tide Charts ships an update every 3 weeks, SeaState every 2 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Tide Charts | SeaState |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (115K ratings)](https://appshunter.io/ios/app/tide-charts/id957143504/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/seastate/id6760665846/reviews)** |
| Number of ratings | **115K** | 3 |
| Positive reviews | **69.1% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | **#32** | — |
| Size | 104 MB | 20 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [7th Gear](https://appshunter.io/developer/321178305) | [Tom Curry](https://appshunter.io/developer/1810220558) |

## What reviewers say

### Tide Charts

[App page](https://appshunter.io/ios/app/tide-charts/id957143504)

**Currently charting:** #32 Top Free · Weather (US App Store)

Access worldwide tidal estimates, lunar data, and weather forecasts. Plan outdoor adventures with ease using current radar and offline predictions. Supports Apple Watch and includes a Today Extension for quick access.

**Highlights:** Worldwide tidal estimates, Lunar data, Weather forecast, Current radar, Offline predictions, Favorite station management, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🚀 Clear tide information
- 👍 Useful for planning activities
- 💡 Comprehensive data including weather and moon phases
- 🤖 Accurate and reliable
- 🌟 Great app for Apple Watch

**What reviewers complain about**

- 🐛 Inaccurate tide data in some locations
- 🙈 Intrusive and unskippable ads
- 🤯 Ads crashing the app
- 🤔 Confusing UI and navigation
- 🤖 Unreliable Apple Watch complications

**Reported bugs**

- Tide data off by several hours
- Tide graph not displaying correctly
- App crashing on ad dismissal
- Apple Watch complications freezing

**Requested features**

- Ability to set custom locations
- Improved accuracy and data sources
- Option to purchase ad-free version
- Landscape mode support
- More detailed tide height information


### SeaState

[App page](https://appshunter.io/ios/app/seastate/id6760665846)

This marine weather app provides detailed forecasts for oceans worldwide, including swell height, wind, tides, and currents. It features a unique side-by-side comparison of conditions at two locations and an AI-powered briefing for go/no-go decisions.

**Highlights:** Worldwide marine weather forecasts, Side-by-side condition comparison, 24-hour wave height graphs, Redesigned wind page with compass rose, AI Captain's Brief for go/no-go advice, Passage planning with ETA, Safety Hub with emergency contacts and float plans

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SeaState Pro Monthly | $4.99 | per month |
| SeaState Pro Yearly | $39.99 | per year |
| SeaState Pro Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Tide Charts free?

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

### Is SeaState free?

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

### Which has better reviews, Tide Charts or SeaState?

SeaState is rated higher. Tide Charts averages 4.8 out of 5 from 115K ratings, while SeaState averages 5.0 from 3 ratings.

### Do Tide Charts or SeaState have ads?

Tide Charts shows ads; SeaState does not.

### Which is updated more often, Tide Charts or SeaState?

Tide Charts ships an update every 3 weeks, and SeaState every 2 weeks. Most recently, Tide Charts was updated on November 6, 2026 and SeaState on November 5, 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.*