Ocean Watch vs e
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ocean Watch
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.
- 3,300+ tide stations
- Stunning graphics and visualizations
- Offline tide predictions
- Interactive almanac
- Integrated station map
- Custom notes and images
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• Over 3,300 stations on every coast of the US and beyond. (Note: limited support for stations beyond the US and Caribbean) • Stunning images, graphics and innovative visualizations to make sense of the information you care most about. • Tide predictions anywhere anytime. Sophisticated prediction algorithms and decades of data, all included so you don’t need a data connection. • Interactive Almanac so you can see the future and make your plans. • Integrated Station Map to get the big picture. • Updated design across Watch / iPhone / iPad and Mac • Best-in-class widgets and complications • Make it personal with custom notes and images.
e
Access global tide information with detailed graphs for two weeks. Visualize astronomical events like sunrise, sunset, and moon phases. Automatically identifies optimal times for fishing and surfing based on tide movement.
- Global tide data for 10,000+ locations
- Tide graph for two weeks
- Sunrise, sunset, and moon phase visualization
- Automatic fishing and surfing time calculation
- Map-based location search
- Favorites and history lists
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This app "e-tide" can check about 10,000 tides around the world. It can be used for marine sports such as surfing and fishing. Do not use for navigation. You can be easily searched tide places from the map. Multiple places are clustered according to the zoom size of map. Tap to zoom in and break down into individual places as a map pins. Tap the map pin to popup the place name. And then tap the popup to show a tide graph. By default, the tide graph for two weeks from two days ago is shown. You can also show the graph by specifying the date from the calendar. In the initial state, the graph is automatically updated according to the date. The tide graph can also graphically check astronomical events such as sunrise, sunset, moonrise, moonset, and moon phase. It can also automatically calculate the time when there is a lot of tide movement and check the time suitable for fishing. When the tide moves a lot, the size of the waves will increase slightly, making it a suitable time for surfing too. You can change the scale in centimeters or feet in "Settings" of app. Tide places can be registered with a name as a favorite. Also, the places you have seen once will be saved as history. You can easily access these places from “Favorites & Histories”. To delete a favorite or history, swipe the item to the left from the list. Tide area is divided into the following seven areas. You can select which area to use at the first startup. You can also change the area selection at any time from "Settings" of app. If you are not sure which area to select, select all. - U.S. Upper East Coast (Maine through Virginia) - U.S. Lower East Coast (North Carolina through Florida Keys) - U.S. Gulf Coast (East to West) - U.S. West Coast (North to South) - Northern sites outside contiguous U.S. (except Japan) - Southern sites outside contiguous U.S. - Japan and nearby sites When app starting, it reads the tide information of your specified area and sets the map pin, but the one with fewer selected areas will start slightly faster. You can use “Favorites & Histories” even during the map pin setting process. For detailed usage instructions, please refer to "Help & Support" from "Settings" of app.
Screenshots
Verdict
The clearest difference is ads: Ocean Watch at none against e's shown. Ocean Watch also leads on ratings volume (2.7K vs 8) and device support (4 vs 2). e's advantage is update cadence (every 3 weeks vs every 8 months) and monetization model (ad-supported vs paid). On price and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
e holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Ocean Watch has 2.7K ratings behind it against 8, so its average is the more settled of the two.
Ocean Watch ships an update every 8 months, e every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Ocean Watch | e |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.7K ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 73.6% of reviews | — |
| Number of ratings | 2.7K — better | 8 |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Ad-supported — better |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPod |
| Requires iOS | 26.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 281 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Bright Labs LLC | Mitsuhiro Shirai |
Customer experience
Ocean Watch
e
Bugs and requests
Ocean Watch
Reported bugs
4 issues- 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
5 requests- 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
e
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ocean Watch
No in-app purchases
e
No in-app purchases









