Formulus
Client for Synkronus
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Offline-first bespoke data collection app from Open Data Ensemble
Formulus is the mobile data collection client of the Open Data Ensemble (ODE) platform.
It allows organizations, research teams, and public sector institutions to build their own bespoke data collection applications based on structured forms defined using the JSONForms specification.
Forms and application logic are defined externally, meaning the same Formulus app can host many different data collection projects without requiring app updates.
Key features include:
• Flexible form-based data collection using JSONForms
• Offline-first operation for use in the field
• Secure bi-directional synchronization with an ODE Synkronus server
• Support for complex data structures and validation
• Designed for long-term maintainability and open standards
Formulus is particularly suited for environments where reliable data collection is needed under challenging conditions, such as:
• field research
• public health surveillance
• environmental monitoring
• humanitarian and development projects
• decentralized data collection initiatives
The app requires access to an ODE Synkronus server for synchronization and project management. Organizations typically run their own Synkronus server to host forms, manage users, and collect submitted data.
If you do not yet have access to a Synkronus server but would like to explore the application, a public demonstration environment may be available. See the project website for details.
Formulus is part of the Open Data Ensemble ecosystem, an open-source initiative focused on building interoperable tools for decentralized, standards-based data collection.
Source code and documentation:
https://opendataensemble.org
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Descriptions and icons have been updated.
Better performance and memory handling in Formulus.
Packages and build tooling updated.
The developer, Chrsitian Stærk, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Chrsitian Stærk
- Size
- 37.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Open Data Ensemble