ChainMemory VS Between

Compare ChainMemory VS Between and see what are their differences

JackHamr

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ChainMemory

Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client

Between

Between is a beautiful space where you can share all your moments only with the one that matters.

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2026-07-02
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2026-07-02
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2026-07-02

ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor.

Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity — no trust required.

Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.

Landing page //
2023-02-07

ChainMemory

Website: chainmemory.ai
Pricing URL: Official ChainMemory Pricing
$ Details: free
Release Date: -

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Between

Website: between.us
Pricing URL: -
$ Details: -
Release Date: 2010 January
Startup details
Country: South Korea
State: Seoul-t'ukpyolsi
City: Seoul
Founder(s): Brad Kim
Employees: 10 - 19

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ChainMemory features and specs

Cross-model memory
Save in ChatGPT, recall in Claude, Gemini, Perplexity or Copilot
MCP Server
Native integration with Claude Desktop, Cursor and any MCP client (npm)
Chrome Extension
One-click save and context injection on any AI chat
Project Brain
Consolidates memories into structured state: decisions, milestones, risks
Cryptographic Verification
Merkle proofs + on-chain anchoring — independently verifiable
REST API
Full backend control with per-project API keys
Semantic Search
Fast semantic recall across all your memories
Multi-Agent Support
Claude, Cursor and GPT share one project state with attribution

Between features and specs

Privacy
Between is designed for one-on-one communication, providing a private space for couples to share messages and photos without the noise of other social media platforms.
Shared Calendar
The app includes a shared calendar feature that helps couples coordinate schedules and plan events together easily.
Customizable
Users can personalize their experience with custom themes and stickers that make interactions more fun and engaging for couples.
Memory Storage
Between allows couples to store memories such as photos, notes, and anniversaries, creating a shared timeline of their relationship.

Possible disadvantages of Between

Limited Audience
The app is specifically designed for couples, which limits its usefulness for those who are not in a romantic relationship.
Subscription Cost
Some features of the app might require a subscription fee, which could be a downside for users looking for a completely free solution.
No Group Functionality
Unlike other messaging apps, Between does not support group chats, which may deter users who want broader communication capabilities.
App Dependency
Both partners need to use the app, which may be inconvenient if one partner prefers using a different platform or is not tech-savvy.

Analysis of ChainMemory

Overall verdict

I don't have verified information about ChainMemory (chainmemory.ai), so I can't confirm whether it's good or reliable. I don't want to fabricate details about a product I have no factual basis for—please verify through official sources, user reviews, and independent research before drawing conclusions.

Why this product is good

I lack verified data on this specific product's features, performance, or user feedback
No independent reviews or benchmarks are available to me for this service
I cannot confirm the legitimacy, pricing, or claims made by chainmemory.ai
Making up details would be misleading rather than helpful

Recommended for

Anyone considering this product should first check the official website for documentation and pricing
Look for third-party reviews, community discussions, or case studies before committing
Consider reaching out to the company directly for demos, references, or trial access
Consult recent tech news or comparison articles if this is a newer or niche tool