O'der stack vs Verify Calculator

O'der stack is a scientific calculator that is precise for up to 38 digits and is highly flexible. It can be used for various purposes, from learning to professional use, and has many functions that are convenient when mastered. The formulas described can be saved together with the results of the calculations and easily shared among members. Also, labels and memos can be set for formulas as well as each item that makes up the formulas. For example, by adding the label "radius" to "50" in 2 x 50 x π, it is possible to make the meaning of the formula even clearer. It is also perfect for entering explanations of formulas as memos and using them as tools to assist in learning. O'der stack offers two plans, the Pro plan which offers unlimited use of all functions, as well as the Free plan which makes it usable as an easy-to-use scientific calculator. —Functions— 1. A powerful editing function that allows partial overwriting of values without erasing the formula 2. Label and memo functions to support the understanding of formulas 3. A clipboard function that allows formulas to be pasted in notebooks, etc. 4. Setting the precision of calculations from 0 digits to 38 digits 5. Setting units (degrees/radians) for trigonometric functions 6. Setting the format of displaying results of calculations (normal notation, scientific notation, and percentage notation) 7. Basic functions (exponentiation and nth root) 8. Undo function —Pro plan— Please download O'der stack and try out the Pro plan for free for seven days. In addition to all the functions in the Free plan, the Pro plan allows for the activation of even more convenient functions. 1. Functions to save and load formulas and calculation histories 2. Function to share formulas and calculation histories 3. A sub-formula function that allows for the breakdown into several formulas and simple entry 4. 18 types of versatile and widely-used functions 5. 652 highly precise numerical and physical constants and observed values 6. Setting the format of displaying results of calculations (binary, octal, hexadecimal)        - Each item can be selected from 8bit, 16bit, 24bit, 32bit, 64bit and 128bit.        - Supports negative values and decimal points.        - Negative values are displayed in complement. After the free trial has ended, if you would like to continue to use the Pro plan, a purchase of a non-autorenew-subscriptionis required. For a subscription, you can choose either a monthly purchase or yearly purchase, and the yearly purchase allows you to enjoy a discount worth two months of monthly purchases. Payment will be charged to your Apple ID account at the confirmation of purchase. If you purchase a plan during the effective period, it will be extended by the number of days of the purchased plan from the end date. The plan is effective on all devices linked to the purchased Apple ID account. Privacy policy https://ictfractal.github.io/official/PrivacyPolicy.html Terms of service https://ictfractal.github.io/official/AppTerms.pdf Disclaimer ICT Fractal Inc. does not guarantee the accuracy, credibility, and compatibility of the results of calculations and information provided through this app. Furthermore, it does not bear the responsibility for direct or indirect damages that might occur through this app.

Recommended for accountants and finance professionals! Verify Calculator is a perfect tool for checking the accuracy of invoice and receipt calculations, resembling a printed receipt.  It is ideal for expense calculations.  By tapping on the receipt section, the color changes, making it easy to verify the entered values. To facilitate verification, you can swipe down the keyboard section to hide it, allowing the receipt section to be displayed more extensively.  Swiping up on the calculation result section will display the keyboard again. With two tax buttons, you can assign both 10% and 8% rates.  There is also a rounding button that enables single-tap handling of decimal places. Features 1.Calculation results are displayed in a list like a receipt. 2.Two consumption tax buttons for easy calculation. 3.One-click rounding calculation button. 4.Export calculation history in text format. 5.Tap the receipt section to change its color for verification. 6.Swipe down the keyboard to expand the receipt section. 7.Long press the receipt section to copy it to the display section. 8.Long press the calculation result to copy the value to the clipboard. 9.Long press the "C/AC" button to clear all calculations in the receipt section. 10.Various errors are displayed in the display section. 11.Tax rate can be changed. 12.Choose from truncation, rounding up, or rounding down for tax-included calculations. 13.Supports dark mode. 14.Maximum of 100 rows. Advertisements You can use it for free, but advertisements will be displayed.  Disclaimer This calculator application Verify Calculator is provided for general calculation purposes.  We do not guarantee the accuracy or completeness of the calculation results in this application.  We are not responsible for any actions or decisions made based on the calculation results.