Non-profit association under the French law of 1901
Tech 4 Fertility
Putting technology to work for natural family planning.
NewThe association
Tech 4 Fertility is a French non-profit association. Its work follows four lines of action, set out in its statutes.
Build digital tools
Software solutions, especially apps for tracking the female cycle and fertility.
Promote natural methods
Raise awareness of natural family planning methods.
Inform, train, raise awareness
Information, education and training activities, and events.
Cooperate
With any association, foundation or body pursuing similar or complementary goals.
Purpose of the association
The purpose of the association is the development, ownership, maintenance, operation and distribution of technical solutions, in particular software, especially applications for tracking the female cycle and fertility.
Its purpose is also to promote natural methods of birth regulation, to organise information, education, awareness-raising and training activities and events, and to cooperate with any association, foundation or body pursuing similar or complementary objectives.
More broadly, the association may carry out any action relating to women’s health, family balance, equality between women and men, prevention and the general interest.
Translation for information only — the French statutes prevail.
Our projects
The projects run by the association.
moncycle.app
LiveMaking menstrual cycle tracking and natural methods easy to use.
A web app for tracking the menstrual cycle with natural family planning methods.
Key features
- women and couples
- 1,900
- cycles recorded
- 12,000
- daily observations
- 260,000
Figures shown on moncycle.app, October 2026 Visit moncycle.app(opens in a new tab)Source code(opens in a new tab)
The team
The people behind the association.
Jean Mercadier
President
Back-end, API and web app developer
Arnaud de Ruffray
Treasurer
iOS developer
Yves Delvaux
Board member
Android developer
Tanguy Lepoutre
Secretary