σT vs Study Abroad Tracker

σT is a precision tool for physics students and researchers who need to propagate measurement uncertainties through calculations. Enter your experimental data, and σT handles the error math automatically. **FIVE ERROR MODES** Configure uncertainties in your data to match your orignal measurement method: • Constant — for physical constants and exact values • Absolute — fixed ±error (ruler measurements, digital readouts) • Relative — percentage-based uncertainty • Combined — both absolute and relative components (many typical multimeters) • Per-Value — individual error for each measurement **AUTOMATIC PROPAGATION** Create derived values and watch uncertainties flow through the calculation chain. σT uses Gaussian error-propagation and pre-calculated derivative-based methods to compute propagated errors correctly when combining independently measured variables. Available operations: • Basic: add, subtract, multiply, divide, reciprocal • Functions: exp, ln, sin, cos, normalize • Statistical & Sample Statistics: mean with standard error, average step width • Advanced: weighted sums, weighted products, polynomials • Physics: Lorentz factor (relativistic gamma), Logit sigmoid (Fermi-Dirac statistics) **INTERACTIVE CHARTS** Visualize your data with proper error bars. Pinch to zoom, drag to pan, double-tap to auto-fit. Add mathematical function overlays to compare your measurements against theoretical predictions, identify eligible parameter ranges matching your measurements. **EXPORT YOUR WORK** • CSV and TSV export for spreadsheets and analysis tools • High-resolution PNG charts for lab reports • Complete project files for sharing with classmates or colleagues • Copy data to clipboard with a swipe and continue in Sheets or Excel with errors in place **DESIGNED FOR LAB WORK** σT adapts to your device: • iPhone: Full-featured portable lab companion • iPad: Side-by-side layout for efficient data entry • Mac: Native desktop experience via Catalyst **YOUR DATA, YOUR DEVICE** All measurements are stored locally. No account required, no cloud sync, no tracking. σT works completely offline.

ADMIT is the calm, private command center for your study abroad and graduate school applications. Track every deadline, write stronger essays with AI, and keep all of your documents in one place, with no ads, no accounts, and nothing leaving your phone. Applying to universities means juggling dozens of deadlines across time zones, writing the same essay ten different ways, and chasing recommendation letters. ADMIT brings the entire campaign into one clean, focused app. WHY STUDENTS CHOOSE ADMIT - No ads and no distractions, ever - No account and no sign up required - Works fully offline, your data stays on your device - Built for quality with a fast, focused, modern design TRACK EVERY DEADLINE - Add unlimited universities, programs, and rounds - See a live countdown to your next deadline - Every deadline uses the school time zone so you never miss a cutoff - Smart reminders from thirty days out down to the final day - A clear pressure map shows your busiest weeks ahead WRITE BETTER ESSAYS WITH AI - Turn one strong essay into a tailored version for every school - Fit any essay to an exact word or character limit in seconds - Get an honest committee style critique with clear, specific notes - A built in name check warns you before the wrong university name slips into a draft - Full version history so you can compare and restore any draft ORGANIZE THE WHOLE CAMPAIGN - A secure document vault for transcripts, test scores, and more - Track recommenders and see who has submitted at a glance - Log fees, tests, and deposits with a running budget in your currency - Compare offers side by side when the decisions arrive - Step by step visa checklists after you are admitted PRIVATE BY DESIGN ADMIT has no accounts, no ads, and no third party tracking. Everything you create stays on your device. The only time anything leaves your phone is when you choose to use an AI feature, and even then only the text you send is processed. Your applications are yours alone. BUILT FOR EVERY APPLICANT Whether you are applying for a masters, a PhD, an MBA, or your first undergraduate program, ADMIT adapts to your journey across the United States, United Kingdom, Canada, Europe, Australia, and beyond. Start today and bring order, calm, and confidence to your applications. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/