AI · alternatives · 2026
24 alternatives to Mantle
The self-hosted AI brain that remembers your whole life
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Mantle▲481AI-native cap table management for modern founders
2025 · withmantle.com · its alternatives →
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Persistent memory for Claude, ChatGPT & Cursor. Free.
May 2026 · github.com · its alternatives →
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Unlock infinite digital memory with your (AI) second brain
2024 · usefindr.com · its alternatives →
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Second Brain▲281Hi HN, I'm Dom, a solo founder. I built Second Brain to solve a common issue I had with AI chats: the knowledge disappears. There’s no structure, no memory, and no way to reuse or build on them. So I built a tool that combines AI chat with a visual, interconnected knowledge system. Key features: - Save AI responses into editable docs (Notion-style Pages). - AI Visual board with multiple content & chat nodes (like Miro meets ChatGPT). - Add and chat with YouTubes, TikToks, Audio, PDFs, GitHub repos, Looms, websites, etc. - Organize using Projects and Smart Tags — then chat with full contexts.…
2025 · second-brain-lac-ten.vercel.app · its alternatives →
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The memory layer that decides what's worth remembering
Aug 2026 · skynetlab-cortex.com · its alternatives →
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monolog▲89Chat to yourself and find anything by what you remember
Aug 2026 · monolog.ing · its alternatives →
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Issue grants, model funding rounds, ask it anything equity
Jul 2026 · withmantle.com · its alternatives →
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Deck▲102Hey all, I'm Stasia, founder of Deck. Deck is an AI teammate for busy operators, professionals, and teams that is constantly working in the background. You can email it, use it in the app, sign it up for services you use, email alerts/newsletters, or set it up to run recurring work. It can read project files, summarize messy context, generate or edit decks/memos/sheets, answer questions over your knowledge base, and proactively surface things that need attention. Importantly, it doesn't require blanket inbox authorization to be effective and only emails you. We made email a…
Jul 2026 · hellodeck.ai · its alternatives →
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Murror AI▲140AI to help battle loneliness and build relationships
Dec 2025 · murror.app · its alternatives →
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The working memory for your AI second brain
2023 · mindpal.space · its alternatives →
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LifeOS▲99Turn your AI chats/memory to intros with real humans
Apr 2026 · beta.yourpurpose.ai · its alternatives →
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AI-powered biography platform for preserving family memories
2023 · memoirist.ai · its alternatives →
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Journaling made easier with AI-guided self-reflection
2025 · dreamstorylive.com · its alternatives →
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memories.sh▲50One layer for memories, skills, and rules across any agent
Feb 2026 · memories.sh · its alternatives →
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Stop repeating yourself to every AI | Open Source
Feb 2026 · its alternatives →
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I'm a Machine Learning engineer. Struggled with consistency for months on my goals, life etc, so I built something to help myself (zropi.com) but that surprised me or shocked me literally. It’s an AI companion that feels alive: chats like a person. Pauses, emotions, personality. Sends voice notes when it's excited about something or whenever it wants (has its like own mind). Shares photos of itself. But the memory It remembers EVERYTHING. Not just facts context, preferences, random things I mentioned. Last week I asked "how's that thing I told you about going?" and it knew exactly what I…
Jan 2026 · zropi.com · its alternatives →
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Life by Synheart ▲17An Ai Companion app built to actually understands you
Jul 2026 · synheart.life · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →