OneClick Calculator — simple enough for everyone, powerful enough for professionals. A user-friendly scientific calculator that does the heavy lifting for you.

Don't compromise on power for the sake of simplicity. Enjoy a clean, elegant interface with instant access to a vast set of tools that supercharge your productivity.

Discover the most distinctive features:

• Statistical, trigonometric, logarithmic functions — all at your fingertips.
• With custom functions, your computing environment becomes the embodiment of your ideas.
• Dual input field is essential for multi-step calculations without losing track.
• You can seamlessly convert results across 1,500+ units of measurement — or create your own categories.
• 15 memory cells with dedicated notes and timestamps provide real-world utility.
• Undo/Redo options take you back in time up to 50 steps.
• Working on the lock screen offers more flexibility.

⚡ Uncover the full potential of the app with the Assistant — your personal hub for managing Performer, Notebook, functions, constants, and variables.

💫 Performer: The app's intelligent core that takes your calculations far beyond simple math.
Transform your ideas into logically-linked formulas:

• Dynamic Variables: Use an unlimited number of variables and set their values at runtime.
• Customized Output: Get results tailored to your needs, including intermediate steps and contextual data.
• Absolute Precision: Leave behind any doubts about the accuracy of your complex calculations.

📝 Notebook: A built-in text editor with version history, offering instant access to your calculation-essential notes.

📂 File Manager: Your data, your rules. Seamlessly export or import measurement units, complex formulas, and custom themes. Share your unique findings with friends or backup your entire workflow in seconds.

💬 Your questions and ideas matter to us. We're always open to suggestions that make the app better.