Formulus

about

description

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

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-10-02T00:55:51.871263+00:00

last event

2026-10-08 17:44 UTC

install

zapstore.dev or any Zapstore-compatible client

source & build

repository

https://github.com/opendataensemble/ode

arch flags

android-arm64-v8a android-armeabi-v7a android-x86 android-x86_64

manifest

missing

releases (kind 30063)

1 release indexed; latest 1.4.0.

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.4.0 — formulus-v1.4.0-108-universal-release-20261001.apk

sha256

32a71d0f59f6a9282dd58ed49de2df2f0f5f31c70a534c755704e497911c0536

size

74.0 MB

archs

android-arm64-v8a, android-armeabi-v7a, android-x86, android-x86_64

version code

108

apk cert sha256

88de45a6543aecbe66b1c70d2bb35da84364c1a0991059a76ac3b313d8042129

download

formulus-v1.4.0-108-universal-release-20261001.apk

Showing the newest 1 asset descriptor; the full set is in /api/apps/78ce6faa…