# eSeaGo > Hong Kong marine chart display and navigation assistance app. (iPhone/iPad app by Hydrographic Office of Marine Department of the Government of HKSAR.) - Source: https://appshunter.io/ios/app/eseago/id1352657449 (this page in markdown: same URL + `.md`) - Developer: [Hydrographic Office of Marine Department of the Government of HKSAR](https://appshunter.io/developer/1352657448) - Category: Navigation, Utilities - Price: Free - Rating: 3.00/5 from 3 App Store ratings · 17 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 48 MB - Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan) - Released: 2018-12-31 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/eseago/id1352657449/reviews.md ## What is eSeaGo? The "eSeaGo" is a free mobile application that offers a simple and convenient solution for displaying chart information for Hong Kong waters. Through the "eSeaGo", users can download the chart information provided by the Hydrographic Office of the Marine Department and display it online or offline. With the mobile device's positioning function, the "eSeaGo" can assist vessels sailing in Hong Kong waters. The “eSeaGo” provides content and information in raster format which should not be used as a substitute for paper charts or electronic navigational charts. The “eSeaGo” is not designed to be used for navigational purposes or as a substitute for any navigational equipment that is required under applicable regulations or laws. The “eSeaGo” includes the following main features: • Up-to-date “eSeaGo” chart information for offline display available for download. • Display of up-to-date “eSeaGo” chart information for online use. • Up-to-date “eSeaGo” chart information available notification. • Hong Kong Observatory weather warning notification. • “Portrait” or “Landscape” display orientation. • Speed information display. • True bearing and remaining distance from the mobile device to the user-defined route. • Custom layers, route points and points of interest. • User positioning tracking function and export of the track in the Keyhole Markup Language (KML) file format. • Lands Department basemap (imagery or topographic) for online display. • User-defined speed value for estimated time of arrival calculation. • Power saving mode. • Provide links to useful websites. • Provide legend. • Display weather and tidal information for online use. • Search harbour facilities and place name. • Search by latitude and longitude. • Display maritime information such as Speed Restricted Zone under offline condition. • Import and export KML files as routes, custom layers and points of interest. Note: 1. The “eSeaGo” requires Internet connection. Users are subject to Internet connection and data usage charges arising from the use of the “eSeaGo”, according to the applicable rates charged by users’ respective third-party Internet and data usage service provider as may be from time to time. 2. The positioning information obtained by the mobile device may differ from its actual position and may be inaccurate. Reliance upon or use of such position information shall be at Users' own risk. 3. Support for app versions 2.1.2 or below on iOS has ended. Older versions may no longer receive updates or function properly. We strongly encourage all users to update promptly to the latest version to enjoy more features, up-to-date chart information, the best experience and reliable service. ## Key features - Offline chart information download - Online chart display - Weather warning notifications - Speed information display - User positioning tracking - KML file import/export - Search harbour facilities and place names ## Recent user reviews (10 of 17) All indexed reviews: https://appshunter.io/ios/app/eseago/id1352657449/reviews.md ### 1/5 — 有很大的進步空間 *2025-09-23, version 5.0.36* 台灣看不到地圖 ### 3/5 — 只剩下香港地區的海圖 *2025-09-04, version 5.0.36* 只剩下香港地區的海圖可以用，其他地方就白茫茫一片 ### 3/5 — 如何切換舊版本底圖？ *2025-01-15, version 5.0.31* 如何切換為舊版本底圖？ ### 4/5 — Please include a legend/key *2022-06-14, version 2.1.2* App is great and works very well. Would be helpful to include a legend/key of the symbols used on the map as a reminder. ### 1/5 — 次次開都要重新下載百幾mb *2021-12-19, version 2.1.1* 垃圾 ### 1/5 — Total waste of time *2021-10-25, version 2.1.1* Both the app and the website were blocked by Google. Never succeeded in using the Import of POI. ### 4/5 — Suggested upgrade *2021-09-22, version 2.1.1* It will be great if Apple Watch can be synchronised for real-time route tracking ### 1/5 — 免責聲明 *2021-08-04, version 2.1.1* 每開一次都問一次免責聲明….想點？？ ### 5/5 — Detailed Sea and Land Coverage of Hong Kong *2021-01-14* An excellent free app for those who want to fully explore Hong Kong. What I particularly like is the slider function that enables the user to merge map and chart information together. Kudos to the Hong Kong Hydrographic Office and their collaborators in the Survey and Mapping Office for developing this app. A good example of interdepartmental cooperation serving the public interest. ### 3/5 — 圖標比例尺錯誤 *2020-09-15, version 2.1.0* 圖標比例尺錯誤；把海圖放大後，比例尺顯示0.0 km⋯⋯可是Android版本是會自動更改為m。請修正。 ## Frequently asked questions about eSeaGo ### What is eSeaGo? eSeaGo is a free mobile application designed to display chart information for Hong Kong waters. It allows users to download and view this data online or offline, and utilizes the device's positioning function to assist vessels. ### Is eSeaGo suitable for actual navigation? No, eSeaGo explicitly states that its raster format chart information should not be used as a substitute for paper charts or electronic navigational charts, nor is it designed for navigational purposes or to replace required navigational equipment. ### Does eSeaGo have ads? No, eSeaGo does not contain advertisements. ### What devices does eSeaGo support? eSeaGo supports iPhone, iPad, and iPod devices. ### How often is eSeaGo updated? The latest version of eSeaGo is 5.0.37, and it was last updated on December 17, 2025. Users are encouraged to update to the latest version for the best experience and reliable service. ### What is the age rating for eSeaGo? eSeaGo has an age rating of 4+, making it suitable for a wide range of users. ### Can I use eSeaGo offline? Yes, eSeaGo allows you to download chart information for offline display, making it accessible even without an internet connection. ### What kind of weather information does eSeaGo provide? eSeaGo provides Hong Kong Observatory weather warning notifications and displays weather information for online use. ## Version history (last 5 releases) ### 5.0.37 — 2025-12-17 Improve user experience ### 5.0.36 — 2025-07-24 Improve user experience ### 5.0.34 — 2025-02-18 Bug fixing ### 5.0.31 — 2024-11-28 Bug fixing ### 5.0.28 — 2024-05-08 Fixed known bugs ## Apps similar to eSeaGo | App | Rating | Price | Category | | --- | --- | --- | --- | | [hiFleet](https://appshunter.io/ios/app/hifleet/id1029307439) | 4.0 (2) | Free | Navigation | | [hkbus.app - HKBUS ETA](https://appshunter.io/ios/app/hkbusapp-hkbus-eta/id1612184906) | 4.2 (11) | Free | Navigation | | [Kilowatt香港車主平台 - 充電地圖、討論區及汽車市集](https://appshunter.io/ios/app/kilowatt/id1603262620) | 4.0 (1) | Free | Navigation | | [MyMapHK](https://appshunter.io/ios/app/mymaphk/id793615275) | 5.0 (2) | Free | Navigation | | [HK Traffic](https://appshunter.io/ios/app/hk-traffic/id1165961260) | 4.7 (15) | Free | Navigation | | [汽車台](https://appshunter.io/ios/app/id6444492985) | — | Free | Navigation | ## Related topics [eseago](https://appshunter.io/ios/topics/eseago) --- *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 2026-06-01.*