Sifr — Calculator
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About this app
Sifr (صفر, Arabic for "zero") is a calculator that's nice to use. It opens fast, needs no account or setup, and keeps to itself: no trackers, nothing leaves your phone.
🎨 Make it yours. Five themes ship in the box: Layl (deep navy glass), Bayan (bold ink color-blocking), Raqim (editorial serif), Farah (playful pills) and Mizan (machined). Each comes in light and dark, and on Android 12+ Material You can pull its colors from your wallpaper. There are four keypad layouts to choose from, too.
🧰 More than arithmetic. The Tools tab converts currencies (live when you're online, cached rates when you're not), converts units, splits a bill and figures the tip, and does date math.
📐 Scientific mode covers trigonometry and its inverses, logarithms, powers, roots and factorials, in degrees or radians.
📜 Every result lands on a running tape inside the display. Enable the tape in Settings, then tap any past result to drop it back into the keypad — or open the full history anytime.
🌍 Sifr speaks eleven languages: Arabic, Spanish, Portuguese, French, German, Indonesian, Turkish, Italian, Vietnamese, Russian and English.
🔇 Key sounds and haptics are there if you like them, and off by default if you don't.
One last note on the name: sifr is the Arabic word for zero, a small tribute to the language that gave the world both the modern numerals and the idea of zero itself.
🎨 Make it yours. Five themes ship in the box: Layl (deep navy glass), Bayan (bold ink color-blocking), Raqim (editorial serif), Farah (playful pills) and Mizan (machined). Each comes in light and dark, and on Android 12+ Material You can pull its colors from your wallpaper. There are four keypad layouts to choose from, too.
🧰 More than arithmetic. The Tools tab converts currencies (live when you're online, cached rates when you're not), converts units, splits a bill and figures the tip, and does date math.
📐 Scientific mode covers trigonometry and its inverses, logarithms, powers, roots and factorials, in degrees or radians.
📜 Every result lands on a running tape inside the display. Enable the tape in Settings, then tap any past result to drop it back into the keypad — or open the full history anytime.
🌍 Sifr speaks eleven languages: Arabic, Spanish, Portuguese, French, German, Indonesian, Turkish, Italian, Vietnamese, Russian and English.
🔇 Key sounds and haptics are there if you like them, and off by default if you don't.
One last note on the name: sifr is the Arabic word for zero, a small tribute to the language that gave the world both the modern numerals and the idea of zero itself.
The calculator you'll want to open. Themes, tools, and a scientific mode.
Updated on
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- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
Sifr 2.0 is a full redesign.
• Five themes (Layl, Bayan, Raqim, Farah, Mizan) plus Material You color
• Light and dark, with four keypad layouts
• New Tools tab: currency that works offline, unit converter, tip and split, date math
• A history tape in the display; tap any result to reuse it
• 11 languages, including full right-to-left Arabic
• A new app icon
• Faster and smoother across the board
• Five themes (Layl, Bayan, Raqim, Farah, Mizan) plus Material You color
• Light and dark, with four keypad layouts
• New Tools tab: currency that works offline, unit converter, tip and split, date math
• A history tape in the display; tap any result to reuse it
• 11 languages, including full right-to-left Arabic
• A new app icon
• Faster and smoother across the board
Everyone
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About the developer
HUSSAIN HAMDAN
hussain.yg2010@gmail.com
Saudi Arabia
