Opus LF 與 EF Qatar 使用情況與統計
Opus LF is a personal alarm in your mobile phone. With Opus LF you can easily alert pre-selected receivers who can watch the emergency situation via real time video streaming and follow your location in order to speed response.
The app requires login information for use. If you have forgotten your information, we recommend that you contact the Opus LF responsible person to retrieve your information.
Continued use of GPS running in the background can dramatically decrease battery life.
- Apple App Store
- 免費版
- 公共設施
商店排名
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EF App is a mobile application for the members of Engineers forum Qatar which is intended for connecting the members. EF App helps the members to share their technical & professional requirements within their community, and utilize the opportunities.
- Apple App Store
- 免費版
- 公共設施
商店排名
- -
Opus LF VS. 
EF Qatar1月 8, 2025