Just a Calculator - That Works

Just a Calculator is built to add, subtract, multiply, divide—and get the answer right. CALCULATOR ESSENTIALS • Addition, subtraction, multiplication, and division • Percentages, square roots, tax in/out, memory, and grand total • Up to 12 integer digits, decimal display, and scientific notation • Decimal arithmetic that avoids familiar binary floating-point surprises in money calculations • F / 4 / 3 / 2 / 1 / 0 / ADD2 decimal settings • CUT / 5/4 / UP rounding modes • Save and switch between up to three tax rates CLEAR INPUT AND RESULTS Thousands separators appear naturally while you type. Results use a monospaced display with a slashed zero. Copy a result or share it as a clean image. CALCULATION HISTORY Save the expression, result, and time on your device. Free use keeps the latest 10 calculations. Ad-Free keeps up to 100 and lets you delete individual entries. The calculator and on-device history work offline. OLYMPIC GOLF SCORING Use the standard mode for up to 4 players or the large mode for up to 100. Enter negative scores, calculate totals, averages, and settlements, keep a results history, and share a results image. Friend Link lets an organizer create an event and invite players with a QR code or invitation code. Participants can share attendance and scores with the organizer. This feature requires an internet connection. SOUND AND HAPTICS Configure key sounds and vibration separately. Key sounds respect your device’s Silent Mode. ADS AND IN-APP PURCHASES The free version displays ads. • Ad-Free: a one-time ¥200 purchase in Japan. It permanently removes ads and unlocks additional key sounds. • Event Plus: ¥200 per month in Japan, automatically renewing. It lets you manage multiple weekend events in the same month. Once purchased, ad-free access remains even after the plan ends. The local price shown by the App Store applies in each country or region. Event Plus renews automatically unless canceled. You can manage or cancel it in your Apple Account subscription settings. Privacy Policy: https://dentaku.otsi.jp/en/privacy/ Terms of Use: https://dentaku.otsi.jp/en/terms/