Can't decide in shopping?

Banban Board
  • Think a lot lost before buying?
  • Lost in too many tabs while shopping?
  • Hate using spreadsheets to compare price combinations?
  • Sellers: want to create visual quotes with customers?

No matter how many reviews you read or how many products an AI suggests, it's on you to compare and decide the best for your purposes. That's where you get stuck and feel exhausted.

Banban Board™ helps you "compare clearly, decide easily" from these many options when choosing what to buy and working.

Quick Bookmark

Add more and more cards (banban!) from different stores, as you like.
Cards are instantly created with images, prices, and details.

Demo

Compare and Choose

Move better cards to higher rows, and within a row, toward the left.

Demo

Banban board for toaster oven

Make Your Thoughts Visible

Prioritize cards to decide.

Demo

Solo, with friends, or in your company

Invite others to your organization. Chat through messages and video meetings.

Screenshot of video meeting

The Comparator

Swipe to compare items side by side.

Demo

Coordinate Outfits

In vertical mode, you can mix and match tops and bottoms. You can also coordinate with clothes you already own.

Compare Combination Prices

Try different combinations. Enjoy coordination.

Demo

ties and shirts

Banban Calc

Arrange the cards to simulate like a spreadsheet — no formulas needed.

In face-to-face sales, you can create beautiful quotes on the spot.

Demo

Banban board for wedding plan

Automatic Price Conversion

Supports "today's exchange rates" for 170 currencies.

Diagram of automatic price conversion

What's this?

When buying something, Banban Board™ helps you "compare clearly and decide easily" to find the best option to buy for your purposes from all the choices you've researched through searches, reviews, or AI recommendations.

You can turn your internal thoughts — like “Which one is better?” or “What features does this have?” — into visible cards on your private board. You can organize your thoughts and make decisions.

Cards are seamlessly integrated with helpful features like the item Comparator™, the smarter Banban Calc, Happy the AI dog, and more.

Banban Board™ is a unique tool you've never seen before—it's not a shop, social media, a comparison site, or a decision-making tool, but one that supports you from your initial stage to your final decision.

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

It's simple to use. Start by bookmarking products banban (more and more) from different shops or reviews 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.

Free for individuals, no per-user monthly fees

Individuals: Basic features are free, with no monthly fees per user. If you go beyond the free tier limits, such as the number of data items or AI usage, affordable pay-as-you-go options are available.

Business: A low-cost pay-per-use model with no per-user monthly fees. A free tier is also available.

Requestland and The Project

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

Users are participants. With this new technology, we aim to reduce growing economic inequality, increase everyone's (your) income, and encourage local economies.

Platform Features Available in Requestland

Tap to enlarge
Video meeting screenshot
High Quality, Low Latency Video Meetings

Meet within your org or with sellers — video for up to 3, audio for up to 10. No sign-up needed — just share the URL.

Demo Video Recorder screenshot
Selfie with whitening, window capture, logo, emoji pointers, tap effects — reduces editing time.

DemoExplanation

Image of Notes
Notes
Simple shared notes. Support multiple languages, summaries, and categories. For internal use only.

DemoDoc

Image of Banban Board
Choose What to Buy with Banban Board
A comparison board to organize and think clearly using cards. Bookmarking and spreadsheets are integrated.

Explanation DemoBlogDoc

Request
Purchase Requests on the Map
Receive offers from a specified number of stores.

Explanation DemoBlogDoc

Search or Auto-receive Requests to Sell
A receiver matches up to 10 keywords and 16 addresses or a box area worldwide.

Explanation DemoBlogDoc

Chat diagram
Messaging
Exchange messages with your organization or selected sellers — with emojis, file sharing, and video meetings.

Demo

Screenshot of chat with Happy the AI dog
Happy the AI Dog Helps You
A friendly, cute Labrador powered by ChatGPT is here to help. Messages have buttons to send to others or to Happy.

BlogBlog

Screenshot of Task Management
Task Management
You can manage tasks with the Banban Board. Add costs to cards to turn it into budget management.

Demo

Image of Shared files
Simple Shared Files
Share images, videos, and files within your organization, or enable public access if needed.

Demo Doc

Themes and Customization
You can customize it by specifying preset colors or the URL of your favorite character's image.

Demo BlogDoc

Subviews
Subviews
You can use the Banban Board, Requests, Messages, Notes, and Happy’s AI chat all at the same time. Nice on smartphones, too.

Doc

Floating subviews
Floating Subviews
A subview can float in a separate window to free up space. (Desktop Chrome, read only)
Expert Mode for Quicker Operation
Any size, any device. Quickly create and switch projects with a persistent project list on desktop.

BlogDoc

Image of user accounts
Create your organization and invite friends!
Users belong to "organizations" and have Land IDs. Organization domain names are first come, first served.

Explanation

Screenshot of logging
Audit Logs, Sign-in Logs, and Passkey Management
Store logs for up to 10 years for enterprise needs — with convenient filtering and sorting.

Demo Doc

Who's working on it?

We are a team of researchers and students from the National Institute of Advanced Industrial Science and Technology (AIST, 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.

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.

Beta testing

All content on this site is in the hypothesis stage and will be available once a sufficient number of users is reached. The data displayed includes samples. There are various issues and limitations. Service suspension, data exposure, or data loss may occur.
Your data and personal information are stored on cloud servers located worldwide to ensure quick and secure access. However, it may not comply with the privacy protection or internet security laws of your country such as GDPR. Please use the platform at your own risk.

Warranty and Support by the Sellers

The warranty and support for products are provided by the sellers. Every trade carries risks, so it is important to verify the trustworthiness of the seller. Before placing an order, carefully review their warranty and return policy on their public profile.

In the event of any issues, please communicate with each other and find a solution. You can find the seller's phone number on their public profile.

If you have been deceived, report the incident immediately to your local police along with the seller's IP address (press the IP address button in the message session). Additionally, press the "Report Improper Use" button in the message to inform us.

Best Effort, No Support

Contracts and sales are conducted between users, and Requestland is not involved. Requestland does not provide any support. Please use the platform at your own risk.

Preventing Misuse and Data Review

Check the ban list before use. There are many prohibited items.

For safety reasons, a seller cannot visit a buyer’s home alone. Also, requests for gig work are not allowed, particularly when they involve unfair pay, one-time tasks, or exploitative conditions. We aim to foster a more stable and equitable work environment.

To prevent misuse, criminal activities such as fraud, and harmful behaviors such as self-harm, both public and private data including message session and Banban Board may be analyzed by AI. Additionally, if the Terms of Service are violated, access may be suspended, data may be deleted, and human review may be conducted if necessary. The AI used (OpenAI Moderation API,) does not use submitted data to train models. Please do not use this service for purposes where such analysis is inappropriate or where high privacy protection is required.

Deletion of organizations

In order to efficiently use resources, user accounts and organizations that have had no signed in or fee payments for more than four months will be deleted, including their data.

  • security About your privacy

    Requestland uses your location information provided by your device or estimated from your IP address for trades. Your public information displays country and state/prefecture.

    During a message session, your name, country and state/prefecture, your public profile and IP address are disclosed. Seller/Provider's Land ID is also displayed. (Generally, on an email you can see the peer's IP address.)

    More more detail read our privacy policy.

  • clear Deletion of user and withdrawal from Requestland

    If you delete a user, you will not be able to sign in and access your data. The Land name will be deleted immediately.

    Because messages, comments, and quotes you sent were copied to your peer, they can continue to read them. Your obligations to payment and provision of products will not disappear.

    Subscriptions of paid options will be canceled. You won't be refunded for the billing period during which you cancel.

    Withdrawal from Requestland will be done when you delete the individual user and all organizational users you are having. Organization accounts can be deleted only by administration users.

    User accounts and organizations that have not signed in or fee payments for more than four months will be deleted, including their data.

Image Credits Please let us know if there are any issues.