AI characters that actually remember you. Cherry Sins is a Telegram Mini App with AI companions — each with a unique personality, backstory and memory. They match your energy, send voice messages & photos, and pick up where you left off. Try for free on Telegram — just open and chat.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Telegram
Poland
EU



Cost / License
- Freemium
- Proprietary
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- iPad
- Android Tablet
China



EchoStream is a local AI Agent designed to run directly on your iPhone. It includes a built-in thinking model that helps you do more with less effort.
Cost / License
- Freemium
- Proprietary
Platforms
- iPhone
- iPad
- Google Chrome
- Mac
- Online


+4
Build, ship, and operate AI agents on infrastructure you own. Apache 2.0. Self-hostable in one docker compose up.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
- Docker
India


+4
Keep your work in flow across all AI chat agents. Save context once and reuse it on ChatGPT, Claude, Gemini, Perplexity, and more to get faster results without repeating yourself.
Cost / License
- Freemium
- Proprietary
Platforms
- Google Chrome
United Kingdom


+2
ChainMemory gives AI agents persistent memory that belongs to the user, not the vendor. Save a memory in ChatGPT and recall it in Claude, Gemini, Perplexity or Copilot via Chrome extension, MCP server, or REST API.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Self-Hosted
- Google Chrome
- JavaScript
- Typescript
- npm
- Python



Memwyre is a universal memory platform and persistent knowledge retrieval layer for Large Language Models (LLMs), AI agents, and custom applications.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Platforms
- Online
India


+1
Cost / License
- Free
- Open Source
Platforms
- Online
- Self-Hosted
Singapore


+3
Open-source, self-hosted memory for AI agents built on belief revision. Keeps both sides of a contradiction instead of overwriting, tracks what was believed and when, answers why with a provenance chain, and gates risky actions behind human approval. MIT, pip install, dashboard included.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Mac
- Linux
United Kingdom

Maximem Synap is a managed long-term memory layer for AI agents. It stores what an agent learns across sessions and returns the relevant parts at inference time, instead of re-sending an entire conversation history into the context window.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Python
- Software as a Service (SaaS)
- Node.JS
Give your AI a soul
Alma is a persistent memory layer for AI. Your conversations build knowledge over time — preferences, facts, decisions, patterns. Every interaction makes your AI smarter, more personal, more yours.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)


+12
Lians is an open-source memory and decision-evidence layer for AI agents. It lets agents remember facts, recall current information, reconstruct what was known at a past point in time, inspect conflicts and lineage, and delete or export stored memory.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Platforms
- Windows
- Mac
- Linux
- Online
- Self-Hosted
- Docker


Platform for building stateful AI agents with long-term memory that learn and self-improve over time, from the creators of MemGPT.
Cost / License
- Freemium
- Open Source (Apache-2.0)
Application type
Platforms
- Online
- Linux
- Mac
- Windows
- Self-Hosted



DoneThat automatically tracks all work and uses this context to boost your productivity: Automated timesheets, long-term memory for AIs, proactive coaching, and social sharing for accountability and remote trust.
Cost / License
- Paid
- Open Source
Platforms
- Mac
- Windows
- Linux
- Google Chrome
Netherlands
EU


+1
Open source Python framework for building real-time, temporally aware knowledge graphs for AI agents, so they can track facts and how those facts change over time.
Cost / License
- Free
- Open Source (Apache-2.0)
Application type
Platforms
- Self-Hosted
- Python
- Docker
Hosted semantic memory for AI assistants over MCP, with a quality gate that rejects redundant writes instead of storing everything.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Software as a Service (SaaS)

A cognition aware database engine for AI agent memory. Purpose built in Rust with WAL, HNSW, knowledge graphs, and speculative context pre assembly. Not a wrapper, a ground up storage engine that thinks.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
- Docker
United States











































