# Maximem Vityvs Mem0 OpenMemory vs Supermemory Nova A detailed, side-by-side comparison of the top AI memory Chrome extensions: setup, platform support, privacy, memory depth, and pricing. Try Maximem Vity - Free Best Partial / Limited No / Not supported ### Setup and Onboarding Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Configuration required Best None (zero-config) Partial Minimal; Claude requires Ctrl+M activation per session Partial MCP setup, account linking API keys needed Best No Best No Partial No (but MCP config needed) Guided onboarding Best Yes (walkthrough) No No (self-directed) No No (no built-in tutorials) Technical knowledge needed Best None Partial Low Partial Low to medium Per-platform setup Best None (all platforms auto-enabled) Partial Per-platform quirks (Claude manual, Perplexity buggy) Partial Per-app MCP configuration Time to first memory Best Immediate (starts learning from first conversation) Partial Immediate (fact extraction begins on supported platforms) No Manual (you must save something first) ### Platform Support Feature Maximem Vity Mem0 OpenMemory Supermemory Nova ChatGPT Best Yes (auto) Best Yes (auto) Partial Yes (via MCP) Claude Best Yes (auto) Partial Partial (manual: button or Ctrl+M each time) Partial Yes (via MCP) Gemini Best Yes (auto) Best Yes (auto) No Not confirmed Perplexity Best Yes (auto) Partial Yes (auto, but buggy per user reports) No Not confirmed DeepSeek Best Yes (auto) No Not confirmed No Not confirmed Grok Best Yes (auto) Best Yes (auto) No Not confirmed GenSpark Best Yes (auto) No Not confirmed No Not confirmed Manus Best Yes (auto) No Not confirmed No Not confirmed Google AI Search Best Yes (auto) No Not confirmed No Not confirmed Parallel Web Systems Best Yes (auto) No Not confirmed No Not confirmed Total auto-supported Best 10 Partial 4 auto + 1 manual No 2 via MCP ### User Experience Model Feature Maximem Vity Mem0 OpenMemory Supermemory Nova UX for usage Best Proactive suggestions as you type Partial Auto-inject on most platforms No Manual save and search Memory capture method Best Automated (from conversations automatically) Partial Automated (fact extraction from conversations) No Manual (you click to save content) How memories reach your AI apps Best Suggestions appear in real time; you approve each one Partial Auto-injected into conversations (no approval) No You search, find, and bring memories into conversation User consent per suggestion Best Yes (you review and decide) No No (auto-injected without approval) Partial N/A (fully manual) Risk of unwanted context injection Best None (you review everything) Partial Medium (auto-inject can be wrong or stale) Partial Low (you choose what to use) Suggestion speed Best Milliseconds Partial Varies by platform No Depends on search query Full control over what AI sees Best Yes (nothing injected without consent) No No (auto-inject decides for you) Partial Yes (but requires manual effort) ### Memory Types and Depth Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Facts (name, location, job) Best Yes Best Yes Partial Yes (from saved content) Preferences (communication style, tone) Best Yes Partial Limited Partial Limited Emotions Best Yes No No No No Episodes (narrative context of projects, events) Best Yes No No No No Knowledge and expertise areas Best Yes Partial Limited Partial Yes (via saved documents) Profile building Best Yes (comprehensive, multi-dimensional) Partial Yes (fact-based only) Partial Yes (from saved content) Content types captured Best Conversations across AI apps Partial Facts extracted from conversations Partial Links, chats, PDFs, images, videos, documents (manually saved) Visual memory graph Best Yes Partial Yes (dashboard) Best Yes (knowledge graph) ### Auto-Sync and Continuous Learning Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Auto-sync from ongoing conversations Best Yes (with consent) Partial Yes (auto-extraction) No No (manual save only) Self-learning / memory consolidation Best Yes (merges related context, strengthens relevant memories, de-prioritizes stale ones) No No (static fact store; old and new facts coexist equally) Partial Limited (temporal forgetting of unused memories) Conflict resolution Best Yes (memories evolve as preferences change) No No (new info conflicts with old; no resolution mechanism) No Not applicable Feedback loop Best Yes (improves from your corrections and input) No No No No Memory evolution over time Best Active (gets sharper with use) No None (same quality from day 1 to day 365) Partial Passive (unused memories fade) Respects incognito browsing Best Yes (explicitly never captured) No Not specified No Not specified ### Applications Ecosystem and Integrations Feature Maximem Vity Mem0 OpenMemory Supermemory Nova App ecosystem built on memory Best Yes (WaitPro, Echo, more coming) No No No No Memory as a platform Best Yes (unified memory layer powers multiple apps) No No (standalone browser utility) No No (connectors aggregate content, don't power apps) External connectors Partial Via ecosystem apps No None (extension only) Best Google Drive, Notion, OneDrive MCP support Partial Launching soon Best Yes (OpenMemory MCP server) Best Yes (MCP integration) Dashboard for memory management Best Yes Partial Yes (but syncing between extension, MCP, and web dashboard is unreliable) Best Yes (Nova web app) ### Privacy and Data Security Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Data storage architecture Best Encrypted cloud vault Best Local-first (browser storage) Partial Cloud (encrypted in transit and at rest) Can the company read your data? Best No (vault inaccessible to Maximem) Best No (stored locally on your device) Partial Likely (processed server-side) End-to-end encryption Best Yes Best N/A (data never leaves device) No Not explicitly mentioned Data used for model training Best No (explicitly stated) Best No (local-first) Partial Not sold, but processed by third-party AI Incognito conversations Best Never captured (explicit policy) No Not specified No Not specified Data export and deletion Best Full user control Best Full user control Partial GDPR/CCPA compliant Memory portability across devices Best Yes (cloud-synced, encrypted) No No (local storage; switch computers and memories are gone) Best Yes (cloud-based) ### Reliability Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Chrome Web Store rating Best 5 / 5 Partial 3.7 / 5 Best 4.6 / 5 Known issues Best None reported No Extension, MCP, and playground memories don't sync reliably; Perplexity integration problematic; small-screen display issues No 404 errors; memories stuck queued for 3-4 days; Arc browser compatibility broken Can you edit saved memories? Best Yes (full control to include, edit, or remove) Best Yes (via dashboard) No No (must create new entries; cannot modify after saving) Documented outages Best None reported Best None reported No Oct 2025 (28-min cascading failure); March 2026 (single query consumed 95% of DB runtime) ### Pricing Feature Maximem Vity Mem0 OpenMemory Supermemory Nova Free tier Best Full extension free until 15th April, 2026 Best Full extension, free No 10 memories Paid tier Partial Coming soon Partial API: $19/mo (Starter), $249/mo (Pro) Partial $9/mo for 500 memories (limited to first 100 users) Memory cap on free Best Not specified Best 10,000 memories (API tier) No 10 memories Memory cap on paid Partial N/A Best 50,000+ (API tier) Partial 500 memories Last updated: April 2026. All data sourced from Chrome Web Store reviews, Hacker News discussions, product documentation, and community feedback. Feature availability and pricing may change. 01/Get started ## Ready to Try the Highest-Rated AI Memory Extension? Maximem Vity supports 10 AI platforms, captures rich memory types, and puts you in full control. Free to start. Download Maximem Vity Extension - Free ## Frequently Asked Questions ### What is the best AI memory Chrome extension? Maximem Vity is the highest-rated AI memory Chrome extension with a 5/5 rating on the Chrome Web Store. It supports 10 AI platforms automatically (including ChatGPT, Claude, Gemini, Perplexity, DeepSeek, and Grok), requires zero configuration, and gives you full control over what context reaches your AI apps. ### How is Maximem Vity different from Mem0 OpenMemory? Maximem Vity gives you proactive memory suggestions that you approve before they reach your AI, while Mem0 auto-injects context without your consent. Maximem Vity supports 10 platforms automatically versus Mem0's 4 auto + 1 manual. Maximem Vity also captures richer memory types (emotions, episodes, preferences) and includes self-learning that improves over time, while Mem0 stores static facts that don't evolve. ### How is Maximem Vity different from Supermemory Nova? Maximem Vity automatically captures memories from your AI conversations across 10 platforms, while Supermemory requires you to manually save content and only supports 2 platforms via MCP. Maximem Vity provides real-time proactive suggestions in milliseconds, while Supermemory requires you to search for and retrieve memories yourself. ### Which AI memory tool is most private? Maximem Vity stores your data in an encrypted vault that is inaccessible to Maximem, with explicit policies against model training and incognito capture. Mem0 OpenMemory stores data locally in your browser (private but not portable across devices). Supermemory processes data server-side with third-party AI, with no explicit end-to-end encryption mentioned. ### Is Maximem Vity a good alternative to Mem0? Yes. Maximem Vity offers broader platform support (10 vs 5), richer memory types, user-controlled suggestions instead of auto-injection, self-learning memory that improves over time, and a higher Chrome Web Store rating (5/5 vs 3.7/5). Maximem Vity also syncs memories across devices via encrypted cloud, while Mem0's local storage means you lose memories when switching computers. --- Source: [https://www.maximem.ai/compare/maximem-vity-vs-mem0-vs-supermemory](https://www.maximem.ai/compare/maximem-vity-vs-mem0-vs-supermemory)