✨ Personal Collection

Your Personal App Collection

Science-backed, free interactive tools for health, money, cooking, language, and more. No account required.

🏃
Health & Fitness

Personal Fitness

Comprehensive fitness toolkit: running pace, cycling metrics, walking tracker, heart rate zones, calories burned, and step counter.

  • Running pace calculator
  • Cycling metrics
  • Heart rate zones
  • Calories burned
💰
Finance

Personal Finance

Take control of your money with compound interest, loan repayment, retirement savings, and budget planning tools.

  • Compound interest
  • Loan repayment
  • Retirement planner
  • Budget calculator
🍳
Cooking

Culinary Mathematics

Scale recipes, convert cooking units, estimate nutrition, and master baker's percentages with our kitchen math tools.

  • Recipe scaling
  • Unit conversion
  • Baker's percentage
  • Nutritional estimate
📝
Language

Words

Analyze your text: word count, reading time, readability score, syllable counter, and keyword density.

  • Word counter
  • Reading time
  • Readability score
  • Text statistics
☀️
Health

Sun Exposure

Calculate UV index risk, safe sun exposure time, SPF requirements, and vitamin D synthesis based on your location and skin type.

  • UV index risk
  • Safe sun time
  • SPF calculator
  • Vitamin D estimator
✈️
Travel

Flight Information

Estimate flight duration, fuel burn, carbon footprint, and convert between time zones for any route worldwide.

  • Flight duration
  • Carbon footprint
  • Fuel estimate
  • Time zone converter
🌊
Science

Tides

Understand tidal patterns, calculate tidal range, and learn the gravitational mechanics behind high and low tides.

  • Tidal range
  • High/low tide
  • Gravitational forces
  • Tidal patterns

About Your Personal Collection

The Personal Collection brings together essential everyday apps in one place. Each tool is built on evidence-based formulas: ACSM exercise guidelines for fitness, USDA standards for nutrition, and established financial math for money tools. All calculations run entirely in your browser — your data never leaves your device.

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