Guides
Every Fostera deep-dive in one place. Memory, growth, trust, roleplay, and the honest comparisons with the AI assistants you already know.
Memory
Episodic, semantic, and procedural memory with inspectable controls and cross-session retrieval.
Read the guide →Growth
Nine familiarity tiers across three phases. Same brain, different familiarity — not hidden retention.
Read the guide →Compare
A dated comparison of leading companion apps across memory, personality, safety, and pricing.
Read the guide →Trust
What safety should include for adults and guardian-approved teens: age gates, content policy, data, and crisis boundaries.
Read the guide →Friend
SFW continuity, memory controls, and clear boundaries for ongoing conversations.
Read the guide →vs ChatGPT
Saved memories, chat-history reference, and Projects compared with inspectable, model-portable project continuity.
Read the guide →vs Claude
Claude now offers chat search, generated memory, and Project memory; the practical differences are scope and control.
Read the guide →vs Gemini
Past-chat personalization, saved info, Gems, and Workspace retrieval compared with project-scoped continuity.
Read the guide →vs Qwen
Qwen Studio's documented Memory feature, Alibaba's training and regional data terms, and why recall still depends on the surface you use.
Read the guide →vs Pi
Cross-chat memory, a Manage Memories list, and a documented history download compared with inspectable, project-scoped Soul memory.
Read the guide →vs Copilot
Saved memories, inferred chat-history details, and the mailbox storage and admin limits Microsoft documents around them.
Read the guide →vs Grok
Cross-chat memory, synced history, custom instructions, and Skills—and why recall can still feel inconsistent.
Read the guide →Roleplay
Custom Rules keep canon available, while editable memory supports character voice and SFW worldbuilding continuity.
Read the guide →Free account, no credit card required. Your Soul can save selected context from early conversations and retrieve relevant memories later.
Continue with context
Start with one project. Or one companion. Either way, your Soul takes it from there and remembers the rest.
Start with one projectFree to start · No credit card required
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