Addness is where you and your team share your memory with AI agents. AI that understands you and your team works alongside you, from talking things through to getting them done.
Try Pro or higher free for 7 days (credit card required; cancel during the trial and you won’t be charged).
Addness is used across many industries
Free download
Addness in 5 minutes
Everyday company problems and how Addness solves them, how AI agents do their best work with goals and context, features, security, pricing, and how to start. One document to share with your team. (Japanese)
Because it knows you, the power of AI heads toward results.
Addness shares what you aim for, how you work, where things stand, and more with your AI agents. Because your AI agents act with an understanding of you and your team, results become easier to reach.
AimsVision, purpose
MethodsSteps, know-how
StatusProgress, decisions
AddnessBuilds a roadmap to your goal from shared memory
You & your team
AI agents
Work from the same purpose and current state
Work moves forward, leading to results
Results keep building up as memory
Just connect, and your AI agents reach their full potential.
Everyone’s AI agents can work toward the same goal.
POINT01
Connect your goal and where you are today with to-dos.
In Addness, you break the gap between your goal and where you are today into to-dos, and move forward. You can break it down yourself, or together with your connected AI agent. Every to-do sits under a goal, so work that serves no purpose is less likely to creep in.
1
CEO
Set the goal
Put the state you’re aiming for into words.
2
Addness
Break the gap into to-dos
Line up what to do next under the goal.
3
Your connected AI agent & you
Work through to-dos together
When you’re stuck, talk it through as you go.
* Illustrative example
POINT02
It remembers the purpose, and the story so far.
What you’re aiming for, and what was decided last time. Your connected AI agents read it before they act, so you spend less time explaining things again.
Same “keep going,” a different answer.
AI agents alone
✕ Starting from zero every time
Goal
Keep going with this.
Keep going with what? Please tell me the purpose and what’s happened so far.
Explaining everything again, every time
↺ When the chat ends, it’s back to zero
Where you are now
With Addness
✓ Picks up right where you left off
Goal
Breaks the gap into ToDos (Addness)
ToDo
Next ToDoYour connected AI agent works on it with you Claude Code, Codex, ChatGPT, and more
Keep going with this.
Picking up “Prepare for the sales call.” Following the approach we decided last time, I’ve written 3 questions to ask in the call.
✓ ToDo
✓ ToDo
Where you are now
POINT03
The more to-dos you complete, the more you can hand to AI.
To-dos you work through in Addness don’t reset. They build up. The more they build up, the more your AI agent can decide on its own.
Day one
AI’s answerWhat kind of proposal is it? Tell me the goal first.
One month later
AI’s answerFollowing the direction we set last time, I’ll continue the first draft.
One year later
AI’s answerIn last year’s deals, price was the concern. Let’s show customer case studies first.
Decisions
Meeting notes & recordings
Deliverables & files
* Illustrative example
POINT04
Chat, meeting notes,analytics, and more.
The tools you’ve been paying for separately, all in Addness. And everything your AI agents can read sits in one place.
With separate tools
Total (per person / month)$69.24
WiththeAddnessFocusplan
$39per person / month
Chat, meeting notes and customer management, plus analytics and templates, all in one place.
Difference(per person / month)
$30.24
Estimated savings: $3,629 a year with 10 people
Prices under “With separate tools”: An estimate for paying separately, for everyone, for each use you pick (all six to start), at the list prices of widely used services in each category (annual billing, as of 2026-10-14). The Addness price is the Focus plan billed monthly. What each service covers differs, so each job uses a representative paid plan. Prices change.
One video covering what Addness can do, why it helps you get the most out of AI, how to get started, and how real work gets done. Narrated in Japanese.
The AI agents you connect to Addness can see only the goals and files you have permission to view. You can set who can see each goal individually. And Addness never uses your data to train AI.* For how the AI agents you connect handle data, check each service’s settings.
The core features are the same. The desktop app adds things you can do outside the browser, like shortcut launch and LINE integration.
In a browser
Desktop app
Goals, today’s ToDos, and chat
◯Available
◯Available (same core features)
Voice input: chat and comments in Addness
◯Available
◯Available
Voice input: text fields in other apps
―Not available
◯Available (transcribed on device on Mac)
Notifications
◯Available (browser notifications)
◯Available (desktop notifications)
Shortcut launch
―Not available
◯Available
LINE integration (through your own computer)
―Not available
◯Available
Setup
None (just open it)
Install on Mac or Windows
*Voice input in the desktop app works on Macs with macOS 26 or later (Apple Intelligence) and on Windows (trial, Japanese only). In a browser (Chrome or Edge), voice input works in the input boxes for chat, comments, and questions to AI. LINE integration works on Apple Silicon Macs and Windows (in testing), and is not available on Intel Macs (as of October 2026). See the desktop app page for details.
FAQ
Frequently asked questions
About Addness
Addness is a service where you and your team share your memory with AI agents. AI agents such as Claude Code and Codex understand you and your team, and work alongside people from talking things through to getting them done. Decisions and deliverables stay in Addness as memory, so the more you use it, the more your AI becomes a partner you can rely on.
ChatGPT and Claude are AI that think and create. Addness is where you give that AI your company’s goals and history. Once connected, any AI reads the goals and history saved there before it starts, so you spend less time explaining things again.
Yes. You manage everything from big goals down to today’s to-dos in one connected structure. Unlike other task managers, every to-do carries its “why,” and your connected AI agent can read it and act on it.
You don’t have to break a big goal down yourself. Just write one sentence, in your own words, about what success looks like. Then ask your connected AI agent to “break this goal down,” and it will work through it with you down to today’s to-dos. The same approach works for goals that are hard to put into numbers.
Either works. In one organization, place goals such as “Work” and “Personal” under your top goal. Goals are not shown to other members of the same organization unless they are assigned to them. Your connected AI agent can also read the other organizations you belong to, so if you want to keep them clearly separate for your AI as well, sign in with a different email address.
Decisions and finished work are kept. Your connected AI agent writes them back to the goal (the full conversation is not saved automatically). The next time you ask it to “pick up where we left off,” the AI reads them first, so you spend less time explaining last time’s work again.
Yes. Addness holds your goals, their progress, and the context around them. You can replace other tools with Addness or keep using them alongside it. Slack and Google Calendar integrations are available on Focus and above.
Pricing and getting started
Create an account with “Try free for 7 days,” then add one piece of work you want to move forward as a goal. After that, connect the AI agent you use and ask it, “Let’s move this goal forward.” Step-by-step instructions are in the setup guide. If you’re unsure, you can talk to us.
Pricing depends on the number of people, and you can start with just one. There are four plans: Starter, Pro, Focus, and Unlimited. Connected AI agents do not count as seats, however many you add. Get two months free with annual billing. Anyone who asks AI to do work also needs a separate subscription on the AI side, such as Claude or ChatGPT. See the pricing page for how the plans differ.
Yes. With monthly billing for Pro or higher, you can start with a 7-day free trial (*a credit card is required). Cancel before the same time of day 7 days after you sign up and you pay nothing. Annual billing and Starter are not eligible, nor are cases such as having already subscribed or started a trial with the same email address. See the pricing page for details. Start a free trial
The organization can no longer be used, but your data is not deleted. Subscribe again and you can pick up where you left off.
Connecting and setup
You can connect MCP-compatible AI clients such as Claude Code, Codex, and Cursor. See “Connect AI” for instructions for your client. You can also use Addness from ChatGPT with the official plugin (steps).
Yes. You can connect Addness to ChatGPT with the official plugin. It works on the Free plan too (steps).
Yes. Link your own LINE account in the desktop app, and your connected AI agent can read conversations and send replies. The LINE connection and history stay on your computer and are not copied to the Addness cloud. See the desktop app page for how to connect.
*LINE integration is not available on Intel Macs (as of October 2026). Support may change, so check the desktop app page for the latest information.
The steps differ depending on where you use Claude, such as Claude Code or Claude Desktop. Check the steps in “Connect AI.” If that doesn’t solve it, you can ask our staff on our 24-hour live stream (in Japanese).
In a browser, Addness works as is on both Mac and Windows. The desktop app supports Mac (Apple Silicon and Intel) and Windows 10 (22H2) and 11 (x64). The AI app you connect has its own requirements: Claude Code runs on macOS 13 or later or Windows 10/11, and Codex runs on macOS 14 or later or Windows 10/11 (64-bit in both cases). We recommend 16 GB of memory or more.
*As of October 2026. Supported versions may change, so check the Help Center for the latest requirements.
Access depends on the connection method and settings in Addness and your AI client. You can review the permissions before connecting. See our privacy policy for details on how data is handled.
After we stopped accepting new free plan sign-ups on September 16, 2026, those already on the free plan could keep using it. The free plan ends on Monday, November 16, 2026. From November 16, you can't use your organization's pages or AI connected through MCP until you subscribe to a paid plan. Goals, knowledge, chats, and other data are not deleted, so you can pick up where you left off once you subscribe to a paid plan. If you subscribe monthly by November 16, you get your first month free on top of the 7-day free trial. We'll explain how to subscribe in an email to everyone on the free plan and in Addness.
We investigated the critical PHP vulnerabilities disclosed on October 21, 2026, and confirmed that Addness is not affected because it does not use PHP. Your data is not affected, and no action is needed on your part.
We added how information is handled when you pay for a paid plan through the App Store in the iOS app (sending your organization ID to Apple Inc. and receiving purchase records). Card and other payment details are processed by Apple and are not obtained by us.
