Ask the Blackboard

Click an example to see the result:

* To actually ask the AI, use the HUB app

How to access

Getting Started

Subscribe to BASIC

Go to hub.lab2aid.life and sign in securely via Zitadel OIDC.

Open the Tools list

Find "Smart Calculator" in the Tools section on the HUB home screen.

Type in natural language

Ask your question just like you'd say it. AI shows the process and the answer.

What you'll learn in this class

7 Key Features

Natural Language Input

"What's 15% tip on $150?" or "What is 3 to the 4th power?" — type it just like you'd say it. No need to write equations.

Step-by-Step Explanation

See not just the answer, but why. Intermediate steps are shown so you can learn and verify.

18 Languages

Understands math vocabulary in Japanese, English, Chinese, Korean, Spanish, Hindi, and 12 more. Perfect for multilingual teams.

20-Item History

Calculation history is saved in localStorage like a notepad. Click any entry to recalculate, copy, or clear all.

Zero Coin Cost

One-Click Copy

Copy any result to the clipboard with a single button. Paste instantly into emails or documents.

Web / iOS / Android

Delivered as a HUB PWA. Open in your browser — no install required, app-like experience everywhere.

Multilingual Support

Try it in any language

18 Languages — Input examples and answers
Language	Example input	Answer
🇯🇵 日本語	150ドルの15%チップは？	$22.5
🇺🇸 English	What's 15% tip on $150?	$22.5
🇨🇳 中文	150元的15%是多少？	22.5元
🇰🇷 한국어	150달러의 15% 팁은?	$22.5
🇪🇸 Español	¿Cuánto es el 15% de propina de $150?	$22.5
🇮🇳 हिन्दी	150 डॉलर का 15% टिप कितना है?	$22.5
🇧🇷 Português	Qual é 15% de gorjeta de $150?	$22.5
🇫🇷 Français	Quel est le pourboire de 15% sur $150?	$22.5
🇩🇪 Deutsch	Wie viel sind 15% Trinkgeld von $150?	$22.5
🇹🇭 ภาษาไทย	ทิป 15% ของ $150 คือเท่าไร?	$22.5

Math vocabulary (add / plus / 加 / …)

add · subtract · multiply · divide percent · discount · tax-inclusive · tax-exclusive square root · power · total · average plus / minus / times / divided by 加 / 减 / 乘 / 除 더하기 / 빼기 / 곱하기 / 나누기

Supported currencies

Yen (¥) Dollar ($) Euro (€) Yuan (¥) Rupee (₹) Real (R$)

Calculation Types

Supported calculation types

Tip calculation Tax-inclusive / exclusive conversion Discounted price Percentages Square root Exponentiation Unit conversion Currency notation recognition Average & total

Enrollment (Plans)

Smart Calculator requires BASIC or PRO plan

BASIC Plan

/mo

Zero coin cost · included in BASIC plan

Smart Calculator — included in BASIC plan
Full access to all HUB PWA tools
BASIC AI
Web / iOS / Android
18-language support
20-entry calculation history
Zitadel OIDC secure authentication

Go to class →

Built into HUB PWA BASIC plan → HUB login → Tools → Smart Calculator

PRO Plan

$22

/mo

Vision AI · 200 Labcoins/mo

All BASIC features (HUB PWA all tools)
Unlimited PRO-only Vision AI
200 monthly Labcoins automatically granted
Priority support + early access to new features
For users wanting more complex, higher-precision answers