Mobile appSoftwareWeb platforms and websitesMoncreno2026
Moncreno, an app and software so no appointment goes to waste
Moncreno reassigns cancelled appointment slots in real time. We built the app for the public, the software for professionals and the website, at a fixed price.
- The need
- According to Moncreno, 10 to 15 % of appointments are missed or cancelled at the last minute. For a practice or a public service, that is lost time. For people waiting for an appointment, it is a slot left empty. The founder wanted a platform that brings both together in real time, and she was starting from scratch.
- What we built
- An iOS and Android app for the public with a slot radar and an alert as soon as a slot opens
- Booking in a few seconds and an attendance check that frees the slot if you can't make it
- A household to manage appointments for up to six relatives and a vault for their documents
- Software for professionals with SIRET-verified businesses, services, team and calendars
- Sync with Google Calendar and Outlook
- Platform administration and the website with its simulator
- How we worked
- We have supported the founder since day one, from scoping to the app stores, at a fixed price paid monthly. The heart of the system is a service that runs every 30 seconds to send alerts and day-before reminders and to free slots that were not reconfirmed. A lock stops an alert from going out twice when several servers run, and times follow each calendar time zone, daylight saving included. MakeProps holds the French innovation tax credit approval, so Moncreno can claim the credit on our invoices.
- Technologies
- React Native
- Node.js
- Neo4j
- React
- Tailwind CSS
- Next.js
- Firebase
- AWS SES
- The result
- The app was released on the App Store on 26 October 2026, three months after signing, and it is already on its fourth version. It is rated 5 out of 5. We keep improving it with Moncreno, with a twelve-month warranty after delivery.
