Simple Calculator Downloads & RevenueSimple Calculator - iCalc · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperTakao Ichimura
CategoryUtilities
PriceFree
Released
Rating★ 4.9 (28)
Version2.5.0
Age rating4+
First seen by us
21 Oct 2026
21 Oct 2026Simple Calculator - iCalc update history & changes
Last change · 3 events since 25 Nov 2021Full timeline ↓Full timeline · 3 events
- 🆕Simple Calculator - iCalc first spotted by AppInsiderUnited States (found via search)
- 📦Simple Calculator - iCalc version 2.5.0Made minor improvements and enhanced performance.
- 🆕Simple Calculator - iCalc released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.9 ★
28 ratings
Measured
Simple Calculator - iCalc on the App Store
App details
App ID
1596290232
Publisher
Takao Ichimura
On the store since
Nov 2021
4 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
10 MB
Also listed in
Productivity
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.9 ★
28 ratings
Measured
Ratings
28
Measured
About Simple Calculator - iCalc
iCalc is a simple and easy-to-use calculator that uses a familiar operation system.
It can be calculated by the same operation as real calculators. (Compliant with calculator of company C)
It also has functions unique to the calculator app, such as displaying calculation history and calculation formulas.
There is ⓘ button to display the information page that describes instructions.
Thank you for using iCalc.
(Instructions)
The operation for Arithmetic Calculations, Root Calculations, Constant Calculation and Independent Memory Calculation are the same as real general calculators. (Compliant with calculator of company C)
The original operations and functions are as follows.
- After calculation with the [=] key, the result is displayed on the main display and a white frame is added.
- If you tap an operator key instead of [=] key to calculate, the operator turns white, indicating that you are preparing for the next calculation.
- The calculation formula is displayed below the main display.
- Flipping the main display while inputting, the minimum digit of the displayed input value will be erased one by one.
- Flipping the MR display for independent memory to erase the value in independent memory.
- Call the calculation history with [＜ Prev] key. Repeat tapping to call older history. If you called a calculation history that was too old, you can use [Next ＞] key to return to newer history.
- Tapping [C] key to erase the entered value. And [C] key changes to [AC] key.
- Tapping [MR] key to enter the value of the independent memory. And [MR] key changes to [MC] key.
- [Copy] and [Paste] keys for clipboard.
- Percent Calculations
What is 25% of 100?
[1] [00] [×] [2] [5] [%] → 50
25% of what number is 100?
[1] [00] [÷] [2] [5] [%] → 400
What is 100 increased by 25%?
[1] [00] [+] [2] [5] [%] → 125
What is 100 decreased by 25%?
[1] [00] [−] [2] [5] [%] → 75
- Can be used in environments where either a period or a comma is used as the decimal separator.
(Others)
- The calculation range is −999,999,999,999 ~ 999,999,999,999.
- The maximum number of digits is 12.
- The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app.
It can be calculated by the same operation as real calculators. (Compliant with calculator of company C)
It also has functions unique to the calculator app, such as displaying calculation history and calculation formulas.
There is ⓘ button to display the information page that describes instructions.
Thank you for using iCalc.
(Instructions)
The operation for Arithmetic Calculations, Root Calculations, Constant Calculation and Independent Memory Calculation are the same as real general calculators. (Compliant with calculator of company C)
The original operations and functions are as follows.
- After calculation with the [=] key, the result is displayed on the main display and a white frame is added.
- If you tap an operator key instead of [=] key to calculate, the operator turns white, indicating that you are preparing for the next calculation.
- The calculation formula is displayed below the main display.
- Flipping the main display while inputting, the minimum digit of the displayed input value will be erased one by one.
- Flipping the MR display for independent memory to erase the value in independent memory.
- Call the calculation history with [＜ Prev] key. Repeat tapping to call older history. If you called a calculation history that was too old, you can use [Next ＞] key to return to newer history.
- Tapping [C] key to erase the entered value. And [C] key changes to [AC] key.
- Tapping [MR] key to enter the value of the independent memory. And [MR] key changes to [MC] key.
- [Copy] and [Paste] keys for clipboard.
- Percent Calculations
What is 25% of 100?
[1] [00] [×] [2] [5] [%] → 50
25% of what number is 100?
[1] [00] [÷] [2] [5] [%] → 400
What is 100 increased by 25%?
[1] [00] [+] [2] [5] [%] → 125
What is 100 decreased by 25%?
[1] [00] [−] [2] [5] [%] → 75
- Can be used in environments where either a period or a comma is used as the decimal separator.
(Others)
- The calculation range is −999,999,999,999 ~ 999,999,999,999.
- The maximum number of digits is 12.
- The developer assumes no responsibility for any loss or claims by third parties which may arise from the use of this app.
Latest updates
2.5.0
Made minor improvements and enhanced performance.
