Social experiment · personal project by a commercial agent

When a sensor feels,
the network sees.

An open experiment for educational and outreach purposes: still phones that together recognise a tremor, and one device that recognises the profile of a fall. A technology demonstration on risk awareness and active citizenship. It is not a safety service, not a medical device, not an alerting system.

“When a sensor feels, the network sees” is the educational experiment that shows how raw data can stay on the device while only aggregated signals reach the network.

on-device classification area consensus raw data stays on the phone open-source
SENSOR · 10 Hzlistening

The buttons «Open the demo» and «Download the APK» stay locked until you read and accept the Notice, the Terms of Use and the Privacy Notice via the click-wrap.

The demo only shows on-device logic. No real rescue alert is sent to third parties. For adult signatories only, for personal use. Installation on behalf of non-signing third parties is forbidden.

Two signals, one demonstration

Fall and tremor: how the network tells them apart

Fall · man-down profile

A recognisable profile

Free-fall dive, impact, then stillness: the phone recognises the profile from its own buffer. In the demo it is shown on screen, to make clear how the heuristic works and what its limits are (false positives and negatives).

Tremor · consensus

It takes agreement from many

A single vibration means nothing. The experiment shows how, only when enough still devices feel the same oscillation at the same moment and in the same area, an emergent signal arises. Whoever is walking is excluded.

Who publishes this experiment

A personal project, identity verifiable via Q-code

Holder: natural person

Single-mandate commercial agent under article 1742 of the Italian Civil Code, holder of an active Italian VAT number. Publishes the app in person, outside the agency relationship, without using assets or trademarks of the principal. No personal data of the Holder is published in clear text: the Q-code points to the public chamber of commerce extract (Italian Companies Register) for verified identity.

Q-code Holder identity

Q-code → chamber extract

Scan for official identification, GDPR rights requests (articles 15-22) and any legal communication. No certified email, no email, no phone in clear text.

Free app, no insurance coverage, no public offer. Any contribution on a third-party platform is an optional free gift to the Holder (see «Contribute» section), not consideration for services. Social experiment with assumption of responsibility delegated to the signatory.

Optional contribution

Help cover the hosting costs of this educational experiment

The experiment runs on a small VPS that incurs monthly costs. Voluntary contributions to a third-party crowdfunding platform help cover hosting and bandwidth. The contribution is a free gift to the Holder, regulated by the platform's terms: it does not purchase a service, does not grant any benefit, does not constitute consideration. The Application remains free of use with or without contribution. See Terms §12.

Contribute on GoFundMe →

Optional · no reward · no service · no invoice

Transparency

What it is, and what it is not

What it is

  • An open experiment of active citizenship and risk awareness
  • A demonstration of technology that keeps raw data on the phone
  • A network that becomes interesting with the density of devices

What it is not

  • It is not a life-saver nor tele-assistance
  • It does not replace 112 / 118, Civil Protection or INGV
  • It is not a medical device (not under MDR EU Reg. 2017/745)
  • It is not a safety component under the AI Act (EU Reg. 2024/1689)
  • It is not a public alerting system (not IT-Alert, not D.Lgs. 1/2018)
  • It must not be installed on behalf of third parties (elderly, minors, vulnerable persons) who have not personally signed