*A network connection is required to use this app.

Riiiver is an IoT platform that connects products and services, expanding their possibilities and providing a new kind of user experience.
*Limited to Riiiver-compatible products and services 

~~Make your “iiideas” come to life~~
The Riiiver App lets you create functions called “iiidea” for the Riiiver platform. If you’ve ever wondered, “Wouldn’t it be great if I could do this?” or“Wouldn’t it be convenient to have that function?”, with Riiiver you can easily shape your ideas and bring them to life.

~~No special skills are needed!~~
Creating new functions with Riiiver is so easy. You don’t need to know anything about programming. All you have to do is put together a few functional modules (known as Pieces) in the app. Those with specialized knowledge (such as programming) can even create Pieces themselves. For more information on Piece development, please visit the Riiiver Developers website (

~~The structure of Riiiver~~
In Riiiver, functions are called “iiidea.” They are assembled from the three types of Pieces: T, S, and A.

Example: An iiidea that notifies your family members on your behalf

• T: a Piece that triggers an action
o E.g., an area-based trigger – when you’re 100m away from the office
• S: a Piece that delivers or provides a service
o E.g., an email sender – a pre-set message is sent to those specified
• A: a Piece that outputs the service results
o E.g., a smartphone notification – a service result is displayed on your smartphone

In addition to the above, a range of other Piece combinations are possible.

T-Piece examples:
• Button press – when a specific button on a Riiiver-compatible watch is pressed
• Calories burned – when a specified amount of calories have been burned

S-Piece examples:
• Current location – information about your current location is provided
• Arrival time – estimated arrival time from your current location to your destination is provided

A-Piece examples:
• Time Display – display the time result of the previous Piece on a Riiiver-compatible watch
• Smart home device – a pre-set message is read aloud by a communication device at home

To see a list of available Pieces, please check the following page:

~~About Riiiver-compatible products~~
Even if you do not have access to a Riiiver-compatible product, you can still enjoy Riiiver from your smartphone with the iiidea Player app. Riiiver is an open IoT platform service. As such, we plan to increase the number of compatible products in the future, so please stay tuned!

~~Official Riiiver-compatible products~~
• CITIZEN ‘Eco-Drive Riiiver’ and accompanying apps
Website (
• VELDT ‘LUXTURE’ and accompanying apps
Website (
• iiidea Player App (the iOS version works with Apple Watch)

What’s New

Version 1.4.4

- Show only "News" related to this app.

App Privacy

The developer, CITIZEN WATCH CO.,LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • User Content
  • Search History
  • Browsing History
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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