Calculations, given context.
Meet Echo—the context-aware assistant built directly into our utility suite. No copy-pasting, no tracking, and 100% private.
Based on your current inputs, here is the breakdown:
- Total Interest (Standard): You will pay $334,800 in interest over 30 years.
- With $200/mo Extra: Your total interest drops to $232,200, saving you $102,600.
- Time Saved: You pay off the mortgage 6.5 years early (total term reduced to 23.5 years).
The Privacy Difference
Built differently than standard AI
Zero-Retention Privacy
Echo is stateless. Your conversation history is never logged, saved, or used to train models. Once you close the tab, the chat is gone forever.
Context-Aware Processing
Echo directly reads the outputs of your active calculator on app.luminustools.org. There is no need to copy-paste inputs or results.
Fully Encrypted & Secure
All requests go through serverless API tunnels to secure LLM hosts (Groq/Gemini). No personal identification is ever shared.
Versatile Applications
Designed for calculations
Financial Scenarios
Ask Echo: 'How does a 1.5% reduction in interest rate affect my total mortgage payment over 15 years?' or 'Explain the CGST vs SGST split on this invoice.'
Health & Nutrition
Ask Echo: 'Based on my BMR and TDEE, what is a safe caloric deficit target for steady weight loss?' or 'What macro ratio is ideal for a high-intensity training regime?'
Developer Queries
Ask Echo: 'Explain why this JSON snippet fails validation' or 'Convert this regex string into plain English instructions.'
Got Questions?
Frequently Asked Questions
Is Echo free to use?
Yes. Echo is 100% free to use. There are no limits on standard queries, and no account or signup is required.
How does the browser integration work?
Echo uses a secure state sync inside your browser. When you run a calculation (such as tax estimation or a loan schedule), the tool updates the browser memory, which Echo can read instantly to answer context-specific questions.
What AI models does Echo use?
Echo uses high-performance, low-latency models—specifically Llama 3 on Groq for sub-second text chats, and Google Gemini Flash for complex, multi-modal reasoning.
Do you store any logs or data?
None. We use Google Analytics to track site traffic anonymously, but standard chat conversations processed by Echo are never logged, stored, or reviewed. Everything runs statelessly.
Get context on your numbers.
Experience Echo live. Open any calculator on app.luminustools.org and trigger Echo on the bottom drawer.