| What it does | Free home maintenance tools and guides for homeowners
| Free online Texas Instruments TI 84 Plus CE graphing calculator simulator for algebra, calculus, matrices, and standardized test prep
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| Stage | Startup
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| Founded | 2025
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| Based in | CA
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Appliance age decoder for refrigerators, washers, dryers, dishwashers, disposals, water heaters, and furnaces
- Home maintenance budget calculator to estimate annual upkeep costs
- HVAC filter size finder with MERV rating guidance
- Repair vs replace calculator comparing costs and remaining lifespan
- Appliance-specific serial number location guides
- Comparison guides for major home systems
- Appliance lifespan and replacement cost database
- Blog with home maintenance guides and research findings
- Original research data from anonymized appliance-lookup information
- Support for major appliance brands including GE, Whirlpool, Samsung, LG, Frigidaire, and Bosch
| - High-resolution color graphing with function plotting and curve rendering
- Numerical derivatives and definite integrals for calculus
- Matrix operations and linear system solving with row reduction
- Statistical regressions and data list analysis
- Fullscreen mode with keyboard shortcut support
- TI-30XS MultiView scientific calculator mode
- Mobile responsive design with touch-friendly buttons
- Works on Chromebooks, iPads, Mac, Windows, and Linux browsers
- No installation, account creation, or downloads required
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| What makes it different | - Free access with no account required or paywalls
- Serial decoders cross-checked against manufacturer data
- Content dated and sourced from trusted organizations like NAHB, NFPA, DOE, EPA, ASHI, and NAR
- Practical, calm, non-fear-based approach to home maintenance
- Original research published from own appliance-lookup data
| - Completely free with no paywalls, subscriptions, or account requirements
- Privacy-first architecture: calculations stay on your device, never transmitted to servers
- Accurate emulation of authentic Texas Instruments hardware syntax and functions
- Distraction-free learning environment with no ads or pop-ups
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 6 ▼ −1 (down) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 4 | 0 |
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| Citation Flow (Majestic) | 21 | 18 |
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| Referring domains (Majestic) | 7 | 2 |
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