What's this?

Banban Board™ helps you "compare clearly, choose easily" when choosing what to buy and working — not a shop itself or social media.

Use it solo, or share with remote friends and family in your organization — everyone can move cards to propose ideas.

When buying something, you can turn your internal thoughts — like “Which one is better?” or “What features does this have?” — into visible cards on your private board.

It works like your ex-mind, helping you organize your thoughts clearly — and make decisions easier. Cards are seamlessly integrated with helpful features like the item Comparator™, the smarter Banban Calc, Happy the AI dog, and more.

It's simple to use. Start by bookmarking products banban (more and more) from different shops or adding your ideas into cards. Then, move better cards to higher rows, and within a row, toward the left. The top-left card is your choice.

What can I do with moving the cards?

The features are integrated with the cards and work seamlessly.

• Bookmark product pages with prices and images — the Quick Bookmark.
• Prioritize product cards and ideas.
• Compare products from multiple shops side by side — the Comparator™.
• Coordinate clothes — Vertical View.
• View foreign prices in your currency — the Price Converter.
• Compare combinations such as cars with options and travel plans including total prices.
• Calculate cards like a spreadsheet (even without formulas!) — Banban Calc.
• Present while building a visual quote during selling — Banban Calc.
• Manage budgets — Banban Calc.
• Manage tasks in Kanban-style.
• Use built-in video meeting with Banban board.
• Assisted by AI — friendly Happy the AI dog. (Coming soon)
• Add new features in JavaScript — Banban Script (Coming soon).

When you are not sure what to buy, just use Requests to ask on the map for offers.

Pricing?

Free for individuals, with some paid options. For companies, low-cost pay-per-use with a free tier — no monthly fees per user.

• Free use and Paid Options for Individuals
• Free use and Paid Options for Corporations

Who's working on it?

We are a team of researchers and students from the National Institute of Advanced Industrial Science and Technology (Japan), the University of Tsukuba, the University of Tokyo, and others.

We founded the social startup Peace and Passion — not for profit, but to realize a future where everyone can live with peace of mind and passion.

What does “income rises” mean?

This is a feature of Requestland for The You Can Upgrade the Economy Yourself and Increase Everyone’s Income Project (The Jibu-kei Project).

This project aims to develop technology that helps distribute income and opportunities more broadly through the actions of its users (the project participants), ultimately reducing excessive inequality and building a more prosperous, next-generation economy.

Privacy?

Boards are private — this isn't social media.

Use solo or with remote friends and colleagues. You'll create your org (organization) when registering, and can invite others. Boards and messages stay within your org. No messages come from outside orgs.

Log in with passkeys using touch or face recognition. Users love its ease and security — no passwords needed.

We never share your personal data with third parties like ad networks.

Countries? Devices?

Available in about 190 countries. Requests supports 37 languages and about 170 currencies. It's in beta testing.

As it's a web app, available on both smartphones and computers with no installation required. Use "Add to home screen" to make it an app.

Is it for sellers?

Yes. For face-to-face sales ninjas, beautifully explain your products and simulate pricing for combinations with your customers.

If you create a new organization and invite your customers, they can simulate prices on their own until they’re fully satisfied. This will likely reduce discount requests.

Procurement and purchasing considerations become more efficient, along with internal decision-making.