"Riiiver is Continuously Evolving"
Problem Do you face these challenges?
You want to enhance
the value of
your company's devices,
but developing new
services is costly.
Limited development
resources
hinder
regular updates
for user retention.
Implementing multiple
third-party
services is complex
and often takes
longer than expected.
Confirming terms for
each external
service takes time,
lowing down
time-to-market.
There are no
appropriate metrics
to analyze
user data for
service improvement.
Accelerate Your IoT Utilization
Our team will reach out to you within five business days.
Feel free to contact us anytime.
Reason Why Choose Riiiver
1
Continuous Functionality ExpansionRiiiver allows for ongoing feature enhancements through the integration of partner services. Our ability to adapt flexibly to the needs of target users is one of Riiiver's key strengths.
2
Reduced Development TimeLegal issues such as contracts and terms of use can be bottlenecks when utilizing web services and IoT devices. Riiiver provides tools and support to help streamline these legal considerations, enabling faster market release of new features.
3
User Data AnalysisRiiiver enables the collection of usage data for added features. This allows for the analysis of user trends and the formulation of improvement proposals based on insights. By continuously optimizing services to meet user needs, you can expect to expand your customer base and increase active users.
4
Easily try with Riiiver AppExperience the platform firsthand with the free Riiiver App. Explore our comprehensive feature set and start building custom functionalities.
App Major Update
In August 2025, Riiiver App has been updated and is now even more user friendly.
“Use” feature available
Revamped the UI
Download the free Riiiver App
Service
Flexible IoT Solutions
Riiiver offers an integration method called "RiiiverAPI".
This is recommended for customers looking to minimize development costs. Please see below for the integration process:
STEP 1
Set up an entry point to
Riiiver
on your app
or web page
STEP 2
Log in to Riiiver
*Riiiver membership
registration required
STEP 3
Select and configure
the desired features
from those available on Riiiver
By simply establishing a gateway on your app or web page, you can reduce development time.
Leveraging the already completed Riiiver system allows for quick connections
between devices and services, enabling flexible service development.
Development Environment for Mobile Apps
Make IoT Smarter
Our team will reach out to you within five business days.
Feel free to contact us anytime.
FAQs
What is Riiiver? 
Riiiver is a service that enables users to create personalized, lifestyle-tailored forms of experience by connecting to IoT devices and a range of services, and they can then share with other users.
What is Piece or iiidea?
In Riiiver: The functional modules that users assemble are called “Pieces.”
The functional items assembled from Pieces are called “iiidea”
Users assemble the three types of Pieces – T, S, and A – to create a single iiidea.
T: Trigger Piece → a Piece that triggers an action
S: Service Piece → a Piece that provides a service
A: Action Piece → a Piece that outputs the service results
Expand Your Business with Riiiver
For other inquiries, please contact us from below.
Our team will reach out to you within five business days.
Feel free to contact us anytime.
Company
| Corporate Name | CITIZEN WATCH CO., LTD. |
|---|---|
| Headquarters | 188-8511 6-1-12, Tanashi-cho, Nishi-Tokyo-shi, Tokyo |
| URL | https://riiiver.com/en/ |