Calculatrice + Historique vs Owlculator

Calculator brings five focused calculators into one clean, fast app. Switch between standard, scientific, fraction, percentage and unit conversion tools from the top menu. Standard calculator: large-number arithmetic, saved history and quick correction. Scientific calculator: expressions, trigonometry, logarithms, powers, roots, constants and DEG/RAD modes. Fraction calculator: add, subtract, multiply and divide fractions with simplified and decimal results. Percentage calculator: percentage of a value, proportions, percentage change and discounts. Unit converter: length, mass, temperature, area, volume, speed and time. The app works offline, keeps a clear history for everyday calculations, and supports English, Simplified Chinese, Traditional Chinese, Korean, Japanese, French, German and Spanish. Remove ads anytime with a one-time in-app purchase.

Owlculator gives you one place for quick calculations and deep math notes. You can move from simple keypad taps to multi-line workflows without changing apps. Every result updates instantly so your thinking stays in flow. Use Owlculator when you need speed for daily math and structure for bigger planning sessions. Open Basic mode for immediate answers, then switch to Notes to build formulas, save context, and return later with everything intact. **Tap-First Basic Mode** Basic mode is designed for moments when you need a number right now. Large controls and immediate output help you finish routine math quickly and keep momentum through your day. **Live Notes With Line Results** Notes mode evaluates each line as you type, so long calculations stay readable from top to bottom. You can edit earlier lines and watch downstream values refresh right away. **Conversions Built Into Workflow** Handle units, currency, percentages, and mixed expression formats in the same workspace. You get practical answers for real scenarios without jumping between separate tools. **Reusable Variables and Functions** Set values once and reuse them across longer calculations to reduce repeated typing. This makes budgeting, planning, and formula-heavy work more consistent and less error-prone. **History and Note Recall** Review recent calculator activity in tape history and reopen saved notes anytime. Your previous work remains easy to revisit, refine, and continue when new details appear. Download Owlculator and turn everyday math into a clear, reliable workflow you can trust.