# Ocean Watch vs Sun ETA

The clearest difference is ads: Ocean Watch at none against Sun ETA's shown. Ocean Watch also leads on device support (4 vs 2). Sun ETA's advantage is update cadence (daily vs every 9 months) and iOS requirement (15.1 vs 26.0). On price and in-app purchases there is nothing between them.

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

Ocean Watch ships an update every 9 months, Sun ETA daily. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ocean Watch | Sun ETA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (2.7K ratings)](https://appshunter.io/ios/app/ocean-watch/id865207409/reviews)** | — |
| Number of ratings | **2.7K** | — |
| Positive reviews | 73.6% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Daily** |
| Monetization | Paid | — |
| Size | 137 MB | 31 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Bright Labs LLC](https://appshunter.io/developer/865207412) | [Skiily LLC](https://appshunter.io/developer/1413607102) |

## What reviewers say

### Ocean Watch

[App page](https://appshunter.io/ios/app/ocean-watch/id865207409)

Access tide predictions for over 3,300 stations across the US and Caribbean. Visualize tide data with stunning graphics and an interactive almanac. Plan your activities with offline access to predictions and custom notes.

**Highlights:** 3,300+ tide stations, Stunning graphics and visualizations, Offline tide predictions, Interactive almanac, Integrated station map, Custom notes and images

**Features:** Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate tide information
- 🌟 Excellent app design and user experience
- ⏱️ Quick and responsive
- 🔍 Useful for planning beach activities
- 🗺️ Supports multiple locations

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔍 Limited coverage for some areas (e.g., Canada)
- 🔍 Inconsistent performance on Apple Watch
- 🔍 Complications not always accurate or up-to-date
- 🔍 Difficulty setting favorites or customizing the app

**Reported bugs**

- App crashes when trying to open tide station details
- Tide data sometimes stuck on wrong location
- Apple Watch app not syncing or updating correctly
- Issues with the app's widget not displaying accurate information

**Requested features**

- Add water temperature and wind speed data
- Improve Apple Watch complication to show more detailed tide information
- Expand coverage to more locations, especially in Canada and other countries
- Add ability to set tide alerts or notifications
- Improve stability and reliability to reduce crashes


### Sun ETA

[App page](https://appshunter.io/ios/app/sun-eta/id6761353487)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ocean Watch free?

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

### Is Sun ETA free?

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

### Do Ocean Watch or Sun ETA have ads?

Sun ETA shows ads; Ocean Watch does not.

### Which is updated more often, Ocean Watch or Sun ETA?

Ocean Watch ships an update every 9 months, and Sun ETA daily. Most recently, Ocean Watch was updated on November 1, 2026 and Sun ETA on October 31, 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.*