# e-tide (World tide app) — Show tide graph in the world.

> Global tide graphs, astronomical events, and fishing/surfing time predictions. (iPhone/iPad app by Mitsuhiro Shirai.)

- Source: https://appshunter.io/ios/app/e-tide-world-tide-app/id1476783863 (this page in markdown: same URL + `.md`)
- Developer: [Mitsuhiro Shirai](https://appshunter.io/developer/602643484)
- Category: Weather, Travel
- Price: Free
- Rating: 5.00/5 from 8 App Store ratings
- Age rating: 4+
- Requires: iOS 12.0 · 32 MB
- Languages: American English, Japanese
- Released: 2019-08-22
- Data updated: 2026-08-24
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/e-tide-world-tide-app/id1476783863/reviews.md

## What is e?

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.

## Key features

- 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


## Frequently asked questions about e

### What is e-tide?

e-tide is a weather app that provides detailed tide graphs for over 10,000 locations worldwide. It also displays astronomical events and calculates optimal times for fishing and surfing.

### Does e-tide have ads?

Yes, e-tide contains advertisements. It is available for free but includes ads to support its development.

### How far into the future does e-tide show tide graphs?

e-tide displays tide graphs for two weeks starting from two days prior to the current date. You can also specify a different date range using the calendar.

### Can I customize tide units in e-tide?

Yes, you can change the scale for tide measurements to either centimeters or feet within the app's 'Settings' menu.

### How does e-tide help with fishing and surfing?

The app automatically calculates times when there is significant tide movement, which can indicate larger waves suitable for surfing and increased fish activity for fishing.

### What areas does e-tide cover?

e-tide covers seven major tide areas, including different coasts of the U.S., northern and southern sites outside the contiguous U.S., and Japan and nearby sites. Users can select which areas to use upon startup or change them later.

### How often is e-tide updated?

The latest version of e-tide is 1.0.14, which was last updated on September 27, 2021. Specific update frequency is not detailed, but it has received updates since its release in 2019.

### Is e-tide available on all devices?

e-tide is currently supported on iPhone and iPod devices. Compatibility with other platforms like Android is not specified.

## Version history (last 5 releases)

### 1.0.14 — 2021-09-27

There was a change in tide's service site data so updated how to get tide data.

### 1.0.13 — 2021-03-18

Fixed a tiny bug.(Version code did not match between store and app)

### 1.0.10 — 2021-03-18

Improved some functions.

### 1.0.9 — 2021-03-15

Improved some functions.

### 1.0.8 — 2021-03-11

Improved some functions.

## Apps similar to e

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [SunSet,MoonRise](https://appshunter.io/ios/app/sunsetmoonrise/id1236587830) | 2.7 (3) | Free | Weather |
| [SunSet,MoonRiseX](https://appshunter.io/ios/app/sunsetmoonrisex/id593270419) | — | $0.99 | Weather |
| [Namadu Epicenter Viewer](https://appshunter.io/ios/app/namadu-epicenter-viewer/id1264409388) | — | $0.99 | Weather |
| [Torr: Barometer Altimeter](https://appshunter.io/ios/app/torr-barometer-altimeter/id1586976470) | 4.4 (178) | Free | Weather |
| [HumidCalc](https://appshunter.io/ios/app/humidcalc/id1135328698) | 5.0 (1) | Free | Weather |
| [Thermometer S](https://appshunter.io/ios/app/thermometer-s/id1511271470) | 5.0 (1) | Free | Weather |

## More apps by Mitsuhiro Shirai

- [SimpleTide for marine sports](https://appshunter.io/ios/app/simpletide-for-marine-sports/id602646447)
- [Find JP zip code - ZipNoFinder](https://appshunter.io/ios/app/find-jp-zip-code-zipnofinder/id778634221)
- [Tide and Weather - SurfTide7](https://appshunter.io/ios/app/tide-and-weather-surftide7/id804623368)
- [MTSAT informatio Himawari-kun](https://appshunter.io/ios/app/mtsat-informatio-himawari-kun/id1105242641)
- [Surfing record - SurfLog7](https://appshunter.io/ios/app/surfing-record-surflog7/id1250734719)
- [RS Station (michi-no-eki map)](https://appshunter.io/ios/app/rs-station-michi-no-eki-map/id1356047174)

All apps by Mitsuhiro Shirai: https://appshunter.io/developer/602643484

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*