Pi

Kindroid

Kindroid is an AI companion chatbot that lets users create a customized character, called a Kindroid, with its own personality, backstory, and appearance. It supports text chat, voice and video calls, and AI-generated selfies, aiming for a companion that remembers details and inside jokes over long-term conversations.

Replika

Replika is an AI companion app that presents itself as a personalized digital friend, remembering details about the user's relationships, routines, interests, and concerns to build contextually aware conversations over time. Users can customize their Rep's appearance and personality, and interact through text messaging, voice calls, and photo-based interactions like selfies and doodles. With tens of millions of registered users worldwide, Replika is one of the longer-running AI companion products, built around long-term relationship building rather than one-off Q&A. It is available as native iOS and Android apps as well as a legacy web app.

Wysa

Wysa is a mental health support platform built around an anonymous AI chatbot that offers clinically backed, CBT-based conversations for everyday emotional wellbeing. It's used directly by individuals and also deployed through employers, health systems, and payors to provide always-available support alongside human-led care pathways.

Pieces

Pieces is an AI-powered productivity tool that runs locally on your computer, passively capturing research, chats, notes, and meetings into a searchable timeline. Instead of manually saving snippets or notes, Pieces builds context automatically in the background and lets users query their own recent activity by time, topic, person, or tool. It integrates with over 30 applications including Gmail, Slack, VS Code, Claude, and GitHub Copilot, and can generate instant summaries like standup updates, meeting prep notes, and day recaps. Data is stored on-device by default with granular controls to pause or delete captures, and it supports the Model Context Protocol for use with AI coding assistants.

Suprmind

Suprmind is a web-based decision intelligence platform that brings five frontier AI models—GPT, Claude, Gemini, Grok, and Perplexity—into one conversation. Instead of switching between tabs or running parallel queries, users ask a single question and watch each model read everything before it, build on prior insights, and challenge conflicting claims. The platform is designed for professionals who need pressure-tested answers for high-stakes decisions, not just a single confident AI response.

Character.AI

Character.AI lets users converse with AI-driven characters that have distinct personalities, or build and publish their own characters for others to chat with. Conversations can be text or voice-based, and the platform supports group chats mixing multiple AI characters and human participants in the same thread.