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calc84online vs WorthCay

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

calc84online compared with WorthCay
Detailcalc84online logo calc84onlineWorthCay logo WorthCay
What it doesFree online Texas Instruments TI 84 Plus CE graphing calculator simulator for algebra, calculus, matrices, and standardized test prep Free Coast FIRE calculator to track your progress toward financial independence
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Freemium
PricingNot given Free plan with 90-day trial: up to 20 accounts, 3 months snapshot history, multi-currency support, advanced charts, data export. Premium Monthly: $6/month with unlimited accounts and unlimited snapshot history. Premium Yearly: $59.99/year with all features unlocked.
Key features
  • 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
  • Coast FIRE calculator
  • FIRE number calculator
  • Progress tracking over time
  • What-if scenario testing
  • Multi-currency support
  • Advanced charts and analytics
  • Data export in JSON and CSV
What makes it different
  • 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
  • Organizes multiple real account types to match actual portfolio structure
  • No signup required to run calculator; optional account for saving progress
  • Immediate what-if analysis without reentering data
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last check9 no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)1818
Referring domains (Majestic)210

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