Talktime – MVP application

The project

Mr. Sébastien Grember, founder of the TalkTime app, reached out to me to help design the interface of his mobile application. The goal of TalkTime is to encourage people to reconnect through phone calls at a time when we spend more of our days sending texts, snaps, voice messages, and so on.

The concept is simple: you swipe, just like on Tinder, and when you confirm with a right swipe, it launches a 1-minute call to the chosen contact. The idea is to “reconnect without dragging on.”

Problem

The founder of TalkTime needed a mobile app that would encourage people to reconnect through quick phone calls, at a time when messaging apps dominate communication.

Solution

I studied user habits, created personas, and explored how to make short calls feel natural, engaging, and rewarding rather than intrusive.

Research

I designed the app interface with a “swipe like Tinder” contact selection, one-minute calls, gamified points, ringtones, favorites, and WhatsApp integration. Prototypes and wireframes ensured a smooth and intuitive user experience.

Outcome

The app offered a playful way to revive phone conversations, making calls short, fun, and rewarding, while giving the founder a strong product vision to move forward with development.

App features

  • Tinder-style swipe of phone contacts
  • Appel court de 1 minute
  • 1-minute short calls
  • Earn points to exchange for end-of-call ringtones
  • End-of-call ringtone after 1 minute to encourage hanging up
  • Option to extend the call by an additional minute
  • Add contacts to favorites
  • Call history
  • Push notifications
  • Settings page
  • Invite friends to download the app
  • Shop / gifts page to spend earned points

Tasks

  • Needs analysis
  • Creation of personas
  • User flow design
  • Wireframe creation
  • Mockup design
  • App prototype creation
  • Client relationship management

Project informations

  • Client

    TalkTime

  • Date

    2022

  • Category

    Mobile application

  • Solution

    Mobile app