# Buoy Map vs Shore TideChart

The clearest difference is review sentiment: Shore TideChart at 92% against Buoy Map's 33%. Shore TideChart also leads on price (Free vs $1.99) and update cadence (every 9 days vs every 5 months). Buoy Map's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

Shore TideChart is free to download; Buoy Map costs $1.99 up front. Shore TideChart sells 2 in-app purchases, starting at $1.99 per month. Buoy Map asks for nothing beyond the download.

Buoy Map holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Shore TideChart has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 33% of Buoy Map's written reviews are positive against 92% of Shore TideChart's, so the app with the better star average is not the one people write more warmly about.

Buoy Map ships an update every 5 months, Shore TideChart every 9 days. The most recent releases landed on October 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Buoy Map | Shore TideChart |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/buoy-map/id1437659960/reviews)** | [4.7 (13 ratings)](https://appshunter.io/ios/app/shore-tidechart/id6742362878/reviews) |
| Number of ratings | 1 | **13** |
| Positive reviews | 33.3% of reviews | **91.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 0 MB | 221 MB |
| Requires iOS | 17.0 | **12.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Joel Lisenby](https://appshunter.io/developer/1437659959) | [Matthew Petrosky](https://appshunter.io/developer/1511039111) |

## What reviewers say

### Buoy Map

[App page](https://appshunter.io/ios/app/buoy-map/id1437659960)

Visualize real-time ocean and lake buoy data, including wave height, wind conditions, and water temperature. Access historical graphs and detailed sensor readings to stay informed about marine environments.

**Highlights:** 48hr wave height graphs, Wind speed and direction, Air pressure and trend, Air and water temperature, Wave period and direction, OpenStreetMap integration

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

**In-app purchases:** none


### Shore TideChart

[App page](https://appshunter.io/ios/app/shore-tidechart/id6742362878)

This app provides comprehensive tide and marine weather forecasts for surfers, boaters, and anglers. It offers 7-day tide predictions, hourly marine weather, surf and boating condition ratings, and moon phase data. An offline mode is available for essential information.

**Highlights:** 7-Day Tide Forecasts, Hourly Marine Weather, Surf Ratings, Boating Conditions, Moon Phases & Fish Activity, Offline Mode

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Marine & Hourly Data | $1.99 | per month |
| Annual Premium - Detailed Data | $9.99 | per year |


## Frequently asked questions

### Is Buoy Map free?

Buoy Map costs $1.99, with no in-app purchases.

### Is Shore TideChart free?

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

### Which has better reviews, Buoy Map or Shore TideChart?

Buoy Map is rated higher. Buoy Map averages 5.0 out of 5 from 1 ratings, while Shore TideChart averages 4.7 from 13 ratings.

### Do Buoy Map or Shore TideChart have ads?

Shore TideChart shows ads; Buoy Map does not.

### Which is updated more often, Buoy Map or Shore TideChart?

Buoy Map ships an update every 5 months, and Shore TideChart every 9 days. Most recently, Buoy Map was updated on October 9, 2026 and Shore TideChart on September 24, 2026.

---

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