Software Knowledge Graph vs. Audio Wearables
Brrainy vs. Rewind & Limitless
Following Limitless acquisition by Meta, screen recording and hardware wearables have been discontinued or geographically restricted. Brrainy provides a modern, software-first memory layer synthesizing explicit context from your existing apps and agents into an isolated bi-temporal knowledge graph.
Side-by-Side Architectural Matrix
Objective comparison based on verifiable technical capabilities and public rate cards.
| Capability | Rewind & Limitless (Meta Reality Labs) | Brrainy |
|---|---|---|
| Capture Modality | Continuous OS screen recording and hardware wearable pendant microphone. | Software connectors (native integrations) and a browser extension across the web assistants you use. |
| Status & Platform Support | Acquired Dec 2025. Screen/audio recording disabled; service ended in EU, UK, Brazil. | Active independent platform with continuous forward development and zero vendor acquisition lock-in. |
| Knowledge Representation | Linear temporal audio transcripts and OCR screen snapshots. | Bi-temporal knowledge graph tracking entities, facts, and contradictions over time. |
| Proactive Morning Brief | Reactive conversational search over past screen recordings. | Scheduled morning briefs capped at 400 words delivering open loops, commitments, and calendar context. |
| Data Sovereignty & Keys | Cloud processing tied to platform infrastructure. | Space-scoped row-level security (RLS) with full BYOK (Bring Your Own Key) on compute. |
| Coding Agent MCP Support | None. | Hosted Model Context Protocol (MCP) server for Claude Code, Cursor, and Windsurf. |
Transitioning from hardware wearables
If you relied on hardware audio recording pendants, Brrainy provides clean software-based meeting, document, and chat capture without background surveillance or hardware batteries.
When data sovereignty is paramount
Brrainy requires no dedicated hardware and stores memory items with space-level isolation. You can supply your own API keys for model compute, ensuring your context compounds on your terms.
Experience the cross-assistant difference
Connect ChatGPT, Claude, and your local coding agents into one unified memory layer. Set up in under two minutes with zero token markup.
Other Architectural Comparisons
Brrainy vs. Built-in Assistant Memory (ChatGPT & Claude)
Cross-Assistant Memory vs. Vendor Silos
Brrainy vs. Mem0 & Letta
Productized Memory vs. Developer Infrastructure
Brrainy vs. Beacon (Asymptote Labs)
Memory for Your Whole Week vs. Memory for Your Coding Agents
Brrainy vs. Supermemory
A Memory You Use vs. A Memory API You Call