計算機：式と履歴が見える電卓

This calculator app lets you see formulas as you type them.

Once a calculation is complete, your calculation history is saved and displayed in a list directly above the input field.

This allows you to view your history without switching screens.

Eliminate calculation errors and easily review and edit your history.

You can also include discounts and taxes, making it ideal for a variety of purposes, including everyday shopping, expense calculations, accounting, and travel planning.

[Key Features]

📝 Formulas and History at a Glance

Formulas are displayed in real time as you type, allowing you to instantly check the answer.

When you confirm a calculation (=), the formula and answer are automatically added to the history.

Always see the entire calculation by simply scrolling up and down. No need to take notes or switch between screens.

🔗 Answer-linked "Quote" feature

Tap an answer in the history to quote that number into the current formula.

If the answer of the source formula changes, the result of the referenced formula will automatically update.

(Example: 100 + 100 = 200) (If you quote the answer to this calculation and later change the original formula to 100 + 200 = 300, the value in the referenced calculation will automatically change to 300.)

This allows you to use it like a simple spreadsheet.

✍️ Avoid "What calculation was that?" questions with the memo function.

Add notes to each calculation history.

By recording entries like "Lunch Expenses" and "Company A Transportation Expenses," you can accurately recall the purpose of the calculation when reviewing it later.

🔍 Powerful Note Search

Search for notes by keyword across multiple calculation lists.

By adding specific terms like "July Business Trip," you can quickly find related calculations later.

🧮 Instant Totals with One Tap

You can instantly calculate the total value of the displayed history with just one button press.

This is useful when you want to know the total amount of shopping or expenses.

[Convenient Customization Features]

⌨️ Add frequently used calculations to shortcuts.

You can freely set and arrange calculations like "+8%" for consumption tax or "-20%" for discount rates on the toolbar at the top of the keyboard.

You can add as many keys as you like.

Speed ​​up your work by eliminating the need to repeatedly enter the same formula.

🎨 Customize your design

Supports dark mode for easy on the eyes.

You can also customize the overall app theme color, font size, and even the number of decimal points to make it easier to read and use.

📚 Calculation lists for different purposes

Create and switch between multiple calculation lists for different purposes, such as "work," "personal," and "travel planning."

Manage your data neatly without cluttering it up.

[Other Useful Features]

🗑️ Secure Recycle Bin: Accidentally deleted lists can be restored for 30 days.

📲 Share & Duplicate: Share your calculation history with other apps or duplicate lists for recalculation.