| What it does | Etsy fee calculator showing true profit after all fees including Offsite Ads
| 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 | 2026
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| Based in | JP
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| Pricing model | Freemium
| Free
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| Pricing | Free: one-order calculator and listing score. Listing rewrite $2.99 for 10 rewrites or $9.99 for 40. Shop Audit $9.90 once with 14-day refund.
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| Key features | - Free single-order fee calculator with transaction, processing, listing, and Offsite Ads costs
- Free listing score (0–100) based on title, tags, and description
- AI listing rewrites with title, 13 tags, and description generation
- Shop Audit with live listings ranked worst-first by margin
- Suggested prices on thin or losing margin rows
- Pricing Bible and 1,200-row matrix
- Sold-order backtest from Etsy history
- Calculates 6.5% transaction fee on item plus shipping
- Supports UK and Germany payment processing presets
| - 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 | - Calculates 6.5% fee on total including shipping, not item price alone
- One-person operation with direct email support and no templates
- All free tools run locally in browser with no data upload
- No subscription; all paid products are one-time purchases
| - 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) | Not checked yet ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 21 | 18 |
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| Referring domains (Majestic) | 10 | 2 |
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