Calculator - Math Units Curren
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10K+
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About this app
Calculator is a clean, fast calculator for Android with a scientific keyboard you can expand when you need it, a unit converter covering 10 categories, a currency converter, and automatic history of every calculation.
▶ FEATURES
• Basic + scientific keyboard — tap to expand the sci row when you need sin, cos, tan, log, sqrt, etc.
• Math engine powered by mathjs — handles parentheses, order of operations, decimals
• Unit converter — 10 categories: length, weight, temperature, area, volume, speed, time, data size, pressure, energy
• Currency converter — fetches live rates online and caches them so you can use last rates offline
• Calculation history — every calculation auto-saved, tap to re-use a result
• Formula manager — save and re-use your own formulas
• Settings: radians/degrees, precision, custom keyboard color
• Dark mode + light mode
• 22 languages supported
▶ HOW TO USE
1. Type your expression on the keyboard. Tap "=" to evaluate.
2. Tap the science (fx) toggle to expand sin/cos/log/sqrt and more.
3. Tap the menu to switch to Unit Converter or Currency Converter.
4. History is at the top — tap any past result to insert it.
▶ HONEST NOTES
• No tip calculator built in (use percentage on the basic keyboard).
• No M+/M-/MR memory keys (use the auto-history instead — it auto-saves everything).
• Currency rates need internet to refresh; cached rates work offline.
• Number of supported currencies depends on the rates feed (about 30-40 major currencies in current build).
▶ COMPATIBILITY
Android 7.0 and above. No special permissions. Internet only used to refresh currency rates and show banner ads.
▶ FEATURES
• Basic + scientific keyboard — tap to expand the sci row when you need sin, cos, tan, log, sqrt, etc.
• Math engine powered by mathjs — handles parentheses, order of operations, decimals
• Unit converter — 10 categories: length, weight, temperature, area, volume, speed, time, data size, pressure, energy
• Currency converter — fetches live rates online and caches them so you can use last rates offline
• Calculation history — every calculation auto-saved, tap to re-use a result
• Formula manager — save and re-use your own formulas
• Settings: radians/degrees, precision, custom keyboard color
• Dark mode + light mode
• 22 languages supported
▶ HOW TO USE
1. Type your expression on the keyboard. Tap "=" to evaluate.
2. Tap the science (fx) toggle to expand sin/cos/log/sqrt and more.
3. Tap the menu to switch to Unit Converter or Currency Converter.
4. History is at the top — tap any past result to insert it.
▶ HONEST NOTES
• No tip calculator built in (use percentage on the basic keyboard).
• No M+/M-/MR memory keys (use the auto-history instead — it auto-saves everything).
• Currency rates need internet to refresh; cached rates work offline.
• Number of supported currencies depends on the rates feed (about 30-40 major currencies in current build).
▶ COMPATIBILITY
Android 7.0 and above. No special permissions. Internet only used to refresh currency rates and show banner ads.
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