Supermemory ships a consumer second-brain app. REM Labs ships the continuity layer that apps like it are built on — nine consolidation strategies, 94.6% LongMemEval (vs 81.6%), full self-host, 80+ first-class integrations, and a consumer surface via console + iOS. Here's the side-by-side.
Supermemory ships a clean consumer app. REM ships the continuity layer — with its own consumer surface (console + iOS) on top.
Supermemory is a second-brain product; REM is the continuity layer your product builds on top of. Nine consolidation strategies, federated namespaces, webhook reactivity, protocol-native APIs — the substrate, not the end-user UI.
Supermemory is an app; REM is an API. You could build something that looks like Supermemory on top of REM — we've talked to founders who are. But if you want a finished consumer second-brain today with zero code, Supermemory ships that and we don't.
Supermemory has a developer API (recently added), but their core product is the consumer app. We compare against the app + API as one integrated offering.
| Dimension | REM Labs | Supermemory |
|---|---|---|
| Category | Developer continuity layer | Consumer second-brain + emerging API |
| LongMemEval (500q) | 94.6% · byte-exact upstream GPT-4o judge | 81.6% (published 2025) |
| Consolidation strategies | 9 (Dream Engine) | 1-2 (classification + dedup) |
| Primary form factor | API + SDK (Python, Node) | Consumer iOS app (Nova) + web + API |
| Model-agnostic | Yes — every LLM vendor + local | Yes — vendor abstraction in API |
| Self-hostable | Yes — Docker + K8s + bare metal, one command, ~90s, unlimited | No — cloud only |
| Open source | Apache 2.0 core — SDKs + self-host + extractors | No — closed source |
| Pre-built connectors | 80+ first-class — Notion, Slack, GitHub, Obsidian, Gmail, Twitter import, ChatGPT/Claude import, Zapier, n8n, MCP | Twitter, Notion, ChatGPT |
| GDPR / forget API | Yes — per-memory + audit log | Partial — in-app delete, no programmatic audit |
| Federation across agents | Yes — shared namespaces + A2A | No — per-user focus |
| Webhooks / reactivity | Yes — memory / dream / contradiction events | No native |
| MCP / A2A protocol | Yes | No |
| Multi-agent / hive | Yes — DreamHive | No — single-user |
| Pricing start | Free (unlimited memories, 500 dreams/mo) → $19 Pro | Free tier, Pro plan ($15-20/mo consumer) |
LONGMEMEVAL METHODOLOGY · /benchmarks
The two dimensions Supermemory markets hardest — and REM's actual numbers on each.
REM ships a typed Console (web), an iOS app, a CLI, and a consumer-grade knowledge UI — with the full Dream Engine underneath. Non-technical users get the same second-brain experience; developers get the API.
REM ships 80+ first-class integrations — Notion, Slack, GitHub, Obsidian, Gmail, Twitter/X import, ChatGPT/Claude import, Zapier, n8n, MCP. Typed, versioned, tested by REM. One-click OAuth where supported.
Supermemory is solving "give me a consumer second-brain app." REM is solving "give me the continuity substrate to build one." If you're a developer, pick REM. If you're a person who wants an app, pick Supermemory — we'll send you their link, not ours.
REM gives you the continuity layer. Your product brings the UI, the connectors, the user.