# OCEANUS Connected > Connects CASIO watches to iPhone for mobile link functions and data transfer. (iPhone/iPad app by CASIO COMPUTER CO., LTD..) - Source: https://appshunter.io/ios/app/oceanus-connected/id1179979492 (this page in markdown: same URL + `.md`) - Developer: [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) - Category: Utilities, Lifestyle - Price: Free - Rating: 4.60/5 from 119 App Store ratings · 45 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 222 MB - Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 2 more - Released: 2017-06-05 - Data updated: 2026-09-09 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/oceanus-connected/id1179979492/reviews.md ## What is OCEANUS Connected? Important - Please Read Request to Transfer to the CASIO WATCHES App (Support Termination Notification) The functionality of this app will be transferred to the new watch app, CASIO WATCHES. By updating to version 3.0, users of this app will be able to transfer their user data to CASIO WATCHES via this app. While we understand this may be inconvenient for some users, we ask that you transfer your data across, and continue using CASIO WATCHES in place of this app. ●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The OCEANUS Connected app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. http://www.casio-watches.com/oceanus/ We recommend using OCEANUS Connected on the following operating systems. Operation is not guaranteed for any operating system not listed below. Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation. ⋅ iOS 14 or later. Applicable Watches: OCW-G2000, OCW-S4000, OCW-T3000, OCW-T200, OCW-S5000, OCW-P2000, OCW-T4000 *Some watches unavailable in your region may be displayed in the application. This application uses location information to obtain accurate time. For "Location Service" in iPhone privacy settings, please "Always". If it is not "Always", the application will not work properly. Continued use of GPS running in the background can dramatically decrease battery life. ## Key features - Bluetooth watch connectivity - Mobile Link functions - Simplified watch operations - User data transfer - Location services for time accuracy ## Recent user reviews (10 of 45) All indexed reviews: https://appshunter.io/ios/app/oceanus-connected/id1179979492/reviews.md ### 3/5 — 自分の使ってる時計の番がない?! *2025-10-10, version 3.0* Manta S6000 Series OCW-S6000PB-7AJR が対応外だから早く追加して欲しい(T^T) ### 2/5 — T5000早く使えるように *2022-11-12, version 3.0* 全機種対応にしないと意味なくありませんか？ ### 5/5 — ボク、ニホンジンデース *2022-11-01, version 3.0* ココ、ニホンデース。 お洒落にする前に確実な情報 クダサーイ。 時計は本当に大切に使わせてもらってます。 デザインも本当気に入ってます。 明確な情報のアプリまってますね！ ### 1/5 — 启动失败 *2022-09-06* 卡在启动页，没反应 ### 5/5 — Beautiful *2022-08-23* The watch Beautiful on the hand ### 5/5 — 移行について *2022-08-04, version 3.0* このアプリのデザインがカッコよかったので移行後のダサいデザインにがっかりしています。 ### 1/5 — 時計買う前にデモモードでお試ししよう *2022-07-18, version 2.1.1* 何でもかんでも英語！？表記だけじゃなく、例えばワールドタイムで「北京」では検索できず「Beijing」じゃないとダメとは... 接続する時計を一気にコスパ悪く感じさせるアプリです。笑 デモモードで時計買う前に回避できるぶんの星1！ ### 2/5 — t5000该用哪个app？ *2022-05-01* t5000该用哪个app？ ### 5/5 — 使ってみたら…… *2022-04-06, version 2.1* 購入してからしばらく使っていなかったが、時刻合わせの際に使ってみたら非常に楽なことに気がついた。電池の確認ができるのも非常に便利。ペアリングしている時の電池消費が気になるが、今のところ不便に感じていない。おすすめのアプリ。 ### 1/5 — やっつけアプリ *2022-03-13, version 2.1* 落ちる。 電波受信回数のグラフとか発電量のグラフとか意味がない。 ## Frequently asked questions about OCEANUS Connected ### Does OCEANUS Connected have ads? No, OCEANUS Connected is ad-free. It does not contain any advertisements. ### What is the latest version of OCEANUS Connected? The latest version of OCEANUS Connected is 3.0, last updated on August 3, 2022. ### What operating systems are recommended for OCEANUS Connected? OCEANUS Connected is recommended for iOS 14 or later. Operation is not guaranteed for operating systems not listed. ### Which CASIO watches are compatible with OCEANUS Connected? Compatible watches include OCW-G2000, OCW-S4000, OCW-T3000, OCW-T200, OCW-S5000, OCW-P2000, and OCW-T4000. ### Why does OCEANUS Connected need location services? OCEANUS Connected uses location information to obtain accurate time. For this feature to work properly, Location Service in iPhone privacy settings must be set to 'Always'. ### What happens to my data when I update OCEANUS Connected? Upon updating to version 3.0, users can transfer their data to the new CASIO WATCHES app. This is a necessary step as the functionality of OCEANUS Connected is transferring to CASIO WATCHES. ### How does OCEANUS Connected compare to CASIO WATCHES? OCEANUS Connected is the basic application for connecting to compatible CASIO watches. Its functionality is being transferred to the new CASIO WATCHES app, which will serve as its replacement. ### What is the age rating for OCEANUS Connected? OCEANUS Connected has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 3.0 — 2022-08-03 Data Transfer to CASIO WATCHES (Support Termination Notification) ### 2.1.1 — 2022-05-24 Stability improved, minor bugs eliminated. ### 2.1 — 2021-04-19 OCW-T4000 support. ### 2.0.4 — 2021-03-24 Stability improved, minor bugs eliminated. ### 2.0.3 — 2020-09-15 Stability improved, minor bugs eliminated. ## Apps similar to OCEANUS Connected | App | Rating | Price | Category | | --- | --- | --- | --- | | [CITIZEN Eco-Drive Bluetooth S](https://appshunter.io/ios/app/citizen-eco-drive-bluetooth-s/id1268478800) | — | Free | Utilities | | [Timegrapher X](https://appshunter.io/ios/app/timegrapher-x/id1516161361) | 4.2 (23) | $29.99 | Utilities | | [Watch Accuracy Checker](https://appshunter.io/ios/app/watch-accuracy-checker/id6478476307) | 2.0 (1) | Free | Utilities | | [Magnetized Wristwatch Checker](https://appshunter.io/ios/app/magnetized-wristwatch-checker/id6478119877) | 4.6 (21) | Free | Utilities | | [Clockwork - Watch app](https://appshunter.io/ios/app/clockwork-watch-app/id1612061033) | 4.3 (23) | Free | Utilities | | [AtomicClock: NTP Time](https://appshunter.io/ios/app/atomicclock-ntp-time/id1402993049) | 4.8 (5,520) | Free | Utilities | ## More apps by CASIO COMPUTER CO., LTD. - [EXILIM Remote](https://appshunter.io/ios/app/exilim-remote/id640856022) - [Chordana Tap](https://appshunter.io/ios/app/chordana-tap/id675014142) - [Chordana Viewer](https://appshunter.io/ios/app/chordana-viewer/id711042441) - [CASIO WATCH+](https://appshunter.io/ios/app/casio-watch-plus/id760165998) - [EXILIM Link](https://appshunter.io/ios/app/exilim-link/id904148679) - [C-Assist](https://appshunter.io/ios/app/c-assist/id906611059) All apps by CASIO COMPUTER CO., LTD.: https://appshunter.io/developer/456569836 --- *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 2026-09-09.*