myHermy vs Ultramemory

myHermy and Ultramemory are both productivity tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

myHermy

The core workflow is deliberate: you bring your existing ChatGPT, Claude, Copilot, or Grok subscription, myHermy provisions a dedicated server in one of 30-plus regions, and your agent starts handling email triage, calendar checks, research, and reminders across WhatsApp, Telegram, Discord, Slack, Signal, and email. Daily automated backups with seven-day retention and one-click restore mean a bad config doesn't cost you a week of history. Root SSH and a browser terminal are available if you need to dig in — but the dashboard is built for people who never want to. Where this hits a wall: there is no API, so teams that need to pipe agent output into their own systems or trigger the agent programmatically from external events have no supported path.

Ultramemory

The tool pulls from Gmail, Slack, Google Drive, Calendar, local files, screenshots, and Apple Notes — OCR and transcription run on device, nothing touches a server. Retrieval works without any AI model installed: deterministic full-text and vector search return ranked results immediately. Add a local model through Ollama and answers become conversational, with the model reading only the evidence it cites. The citation trail is the differentiating mechanic — click any claim and the original message or file opens alongside it. The ceiling arrives fast: macOS 14 and Apple Silicon are hard requirements, and the tool does not run on Windows, Linux, or Intel Macs.

Attribute	myHermy	Ultramemory
Pricing	Paid	Free
Price	$19/mo	—
Free trial	No	No
Open source	No	Yes
Has API	No	No
Self-hosted option	No	Yes
Platforms	Web dashboard, WhatsApp, Telegram, Discord, Slack, Signal, Email	macOS 14+ (Apple silicon)
Pros	Bring-your-own LLM subscription support (ChatGPT, Claude, Copilot, Grok), so you avoid paying a second per-message bill on top of hosting — a cost that compounds fast once your agent is running around the clock. Private dedicated server per user, which means your conversations and task history are not co-mingled with other users' data — the failure mode on shared-infrastructure agent platforms. Daily automated backups with seven-day retention and one-click restore, so a broken update or config mistake doesn't permanently lose your agent's context and history. Six-channel reach (Telegram, WhatsApp, Discord, Slack, Signal, and email) from a single agent deployment, so you don't manage separate bots per platform or retrain your habits to use a new interface. Root SSH and browser terminal access on every plan, so users who need to inspect the server environment or install additional tooling aren't blocked by a locked-down hosting layer.	Every answer carries numbered citations linked to the original source — email, Slack message, or file — so you can verify claims in seconds instead of hunting across apps where the context originally lived. Full-text and vector retrieval run without any AI model installed, which means search works immediately after connecting your sources and does not depend on a local model being available or correctly configured. Contradiction detection surfaces cases where two sources say different things and tracks them as open loops, so discrepancies in headcounts, dates, or decisions get flagged before they become day-of problems rather than after. The entire index is a single SQLite file in your home folder with no telemetry or server dependency, which means a subpoena, a data breach, or a vendor shutdown cannot expose your working history. Optional Ollama integration hot-plugs a local language model without reconfiguration, so you can switch between extractive search and conversational answers based on what you have installed — and the tool degrades gracefully when the model is off.
Cons	No API is available, which means any external system — a CRM, a webhook, a custom dashboard — cannot programmatically trigger the agent or receive structured output from it. Teams that need agent actions to feed into their own product or internal tooling have no supported path and need to switch to an API-first agent platform. No self-hosted option exists, so organizations with data residency requirements or policies that prohibit third-party cloud hosting cannot use the service regardless of the private-server framing — the infrastructure is still provisioned and managed by myHermy. The agent's capabilities are bounded by the Hermes Agent and OpenClaw implementations; there is no documented way to swap in a custom agent framework or extend the agent's core logic beyond what the dashboard exposes. Teams with specialized workflows that outgrow the built-in capabilities — email, calendar, research, reminders — have no upgrade path within the platform.	Hard platform requirements — macOS 14 and Apple Silicon — mean anyone on an Intel Mac, Windows machine, or Linux workstation cannot run the tool at all; teams with mixed operating environments will need a different solution from day one. The local AI models the vendor recommends for conversational answers require 16–32 GB of RAM; on machines at or below that ceiling, running indexing and a large local model simultaneously creates resource contention that affects both retrieval speed and model response time. There is no shared or collaborative memory layer — every user's index is isolated to their own Mac — so teams that need a common knowledge base or want to query each other's context will switch to a cloud-based RAG tool or a shared vector store instead. At v0.1.4 the connector set covers common work apps, but the absence of an API or plugin interface means sources not on the supported list — internal wikis, project management tools, CRMs — cannot be added without contributing to the open-source codebase or waiting for official support.

Bottom line

MyHermy is paid while Ultramemory is free; Ultramemory is open source. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between myHermy and Ultramemory?

myHermy is Paid, while Ultramemory is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is myHermy better than Ultramemory?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.