No typos! See the formula. Use history on the same screen to boost efficiency.
About Calculator : Formula & History
Calculator : Formula & History is a tools app developed by Yutaka Kenjo.
Download Statistics
Calculator : Formula & History has been downloaded 2 thousand times. In the last 30 days, the app was downloaded 270 times.
User Ratings
The app has no ratings yet.
App Information
Calculator : Formula & History is FREE to download. The APK download size is 1.03 MB. The latest version available is 1.1.1. The last update was on October 26, 2025.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play July 2025.
Description
This calculator app features an easy-to-read display for both your equations and history. Calculations are automatically saved to a history list, allowing you to easily review them later.
The list appears right above the input field, so you can check it at a glance without switching screens. This helps minimize mistakes and makes editing your history seamless.
Perfect for calculating shopping totals, expenses, travel costs, and more.
[Main Features]
đ See Your Formula and History at a Glance
See your current equation in real-time and check the answer instantly. When you press equals (=), the equation and result are automatically added to your history.
Simply scroll up or down to see your complete calculation overview at any time. No more taking notes or switching screens.
đ "Reference" Function with Linked Answers
Tap any answer in your history to insert that value into your current equation. If the original equation's result changes, any calculation referencing it will automatically update.
(Example: Reference the answer from "100+100=200". If you later change the original to "100+200=300", the referenced calculation will automatically update to use 300.)
This lets you use the app like a simple spreadsheet.
âī¸ Add Memos to Know What You Calculated
You can attach a memo while entering an equation. It's also possible to add memos to your history items later.
By noting things like "Lunch" or "Client Travel," you'll always remember the purpose of each calculation.
đ Powerful Memo Search
Search for keywords in your memos across all your calculation lists. Memo your calculations with tags like "July Trip," and you can instantly find all related entries later.
𧎠Instant Total with One Tap
Calculate the sum of all items in your current history with a single tap. Perfect for finding the grand total of your shopping or expenses.
â Check Function for a Smarter History
Check items in your history to see a real-time subtotal of only the selected entries. You can also batch-delete multiple items at once, making it easy to clean up your list.
This turns your history from a simple log into an interactive tool.
[Useful Customization Features]
â¨ī¸ Create Shortcuts for Frequent Calculations
Freely add custom keys like "+8%" (for tax) or "-20%" (for discounts) to the toolbar above the keyboard.
You can add an unlimited number of custom keys. This saves you from typing the same numbers repeatedly and speeds up your workflow.
đ¨ Customize the Look and Feel
Supports an eye-friendly Dark Mode.
You can also fully customize the app's theme color, font size, and even the number of decimal places displayed, making it perfectly suited to your preferences.
đ Multiple Lists for Different Purposes
Create and switch between multiple lists for different needs, such as "Work," "Personal," or "Trip Budget." Keep your calculations organized and separate.
đ Show Timestamps in History
Display the date and time for each entry to know exactly when you made a calculation. This can be enabled in Settings.
[Other Useful Features]
đī¸ Trash Can for Peace of Mind: Accidentally deleted a list? You can restore it from the trash for up to 30 days.
đ˛ Share & Duplicate: Share your calculation history with other apps, or duplicate a list to start a new calculation.
Recent changes: The memo input field is now hidden by default. You can enable it in the settings.
Get a detailed PDF report for Calculator : Formula & History with download trends, rating history,
and key performance statistics â useful for competitive research or tracking your own app.
Learn more
Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
