Comparison

Calculator Advance Pro vs RedoCalc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calculator Advance Pro

This app offers advanced calculation features for business and travel, including currency and cryptocurrency conversion. It mimics the button operations of physical business calculators and allows for formula correction and extensive customization.

Highlights
  • Currency and cryptocurrency conversion
  • Formula display and correction
  • Customizable button operations
  • Mimics physical business calculators
  • Supports SHARP and CASIO input types
  • Constant, percent, and tax calculations
Features
Read full description

“Calculator Advance Pro” provides button operation on the same level as commercially available business calculators, so this calculator app is sufficiently useful for a variety of business situations. In addition to providing such high-quality basic functions, it also has the following expanded functions. - Currency conversion for the world currencies and cryptocurrencies. - Formula display and correction. - Many possible customizations. + Have you ever experienced these problems with current calculators and calculator apps? - When I am traveling abroad or on a business trip, I would like to convert the local currency's value to the value in my home country's currency. - I would like to get a calculator that can perform calculations with cryptocurrencies. - When I make a mistake in a calculation, I don't want to re-enter the entire calculation from the beginning. This is especially frustrating during long calculations. - Calculator applications lack the functionality of physical calculators. - I would like a calculator application with the functionality of a practical calculator, not a scientific calculator. - I want a well-designed calculator application. “Calculator Advance Pro” is a calculator application that solves the problems found in other physical and virtual calculators. This application is used by professional businessmen, such as accountants, tax accountants, and salespeople, from whom we have received highly favorable feedback. + Can convert both real-world currencies and cryptocurrencies In “Calculator Advance Pro”, there is a currency conversion screen separate from the actual calculator. There, you can download and view the latest exchange rate information of about 167 world currencies (legal currencies), as well as over 1,600 cryptocurrencies from the Internet. In addition, you can use the calculator function utilizing your currency conversion results. The currency data is the same data used by large companies listed on the NYSE (New York Stock Exchange), as well as those included on the S&P 500 Index. + Equipped with functionality on par with commercially available practical calculators One can chose between the two most common types of input (SHARP and CASIO) used in commercially available calculators. The input type can be set on the setting screen. It is possible to configure the buttons for advanced users who wish to use high-level functions that appear in calculator manipulation textbooks (reference books for calculator skill tests, etc.). For example, it is possible to perform constant calculations, percent calculations, tax calculations, calculations using grand totals (GT), memory calculations, exponentiation calculations, and complex operations involving combinations. The button manipulation is the same as that which is published in calculator manipulation textbooks (questionnaires on calculator tests). We have conducted many other tests, and we are always working to improve the reliability of our calculator application. + Convenient for long calculations. Display, review, and editing of calculations is possible. Calculation formulas are displayed, so they are easy to review. In addition, it is possible to modify formulas. It is very convenient because there is no need to re-enter a calculation from the beginning when a mistake is made, it is as simple as correcting the wrong part. + Original and useful features In addition, the application has its own unique and convenient functions: - Displays calculation formulas, independent memory values, and GT memory values in real time - Displays up to 15 digit numbers - Enough memory to save history data for up to 10,000 calculations - Results can be copied and pasted into other applications. - Button configuration can be changed (6 types in total: 4x5, 4x6, 4x7, 5x4, 5x5, 5x6) - Buttons can be set and adjusted. - Stylish Design And more...

About

RedoCalc

Features
Read full description

This is a calculator for people who only use it for simple calculations, such as adding up receipts or calculating the cost of a meal split between several people, but who are always worried about whether the input was correct. As it is a simple calculator, the only operations it can perform are - Four arithmetic operations (addition, subtraction, multiplication, division) - Percentage calculations (including calculations such as consumption tax using percentages) . The results are displayed as numbers with a digit symbol. There is no complicated exponential display. The calculation proceeds in the order of the keys you enter. There is no priority for multiplication or division. The formulas you enter are displayed in order in the upper area as a history. If you tap the white part, it will turn yellow and you will be able to modify that part. (You can modify not only numbers, but also arithmetic symbols such as + and ×.) If you tap “=”, the expressions from the first line to the last line will be recalculated. The result will be automatically copied, so you can switch to other apps and paste the value there.

Screenshots

Calculator Advance Pro4 screens
RedoCalc3 screens

Verdict

The call

The clearest difference is price: RedoCalc at Free against Calculator Advance Pro's $4.99. RedoCalc also leads on update cadence (every 3 days vs fortnightly). Calculator Advance Pro's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 18.0). On ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

RedoCalc is free to download; Calculator Advance Pro costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calculator Advance Pro ships an update fortnightly, RedoCalc every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator Advance Pro versus RedoCalc: the parameters behind the verdict, then further details
ParameterCalculator Advance ProRedoCalc
Price$4.99Free — better
Rating4.0 (5 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings5 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsYesYes
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS10.0 — better18.0
Further details — not scored
Size32 MB3 MB
Age rating4+4+
DeveloperTakahiro IwataniToshiyuki Kuwabara

In-app purchases

None

Calculator Advance Pro

No in-app purchases

None

RedoCalc

No in-app purchases

Questions

Is Calculator Advance Pro free?
Calculator Advance Pro costs $4.99, with no in-app purchases.
Is RedoCalc free?
RedoCalc is free to download, with no in-app purchases.
Do Calculator Advance Pro or RedoCalc have ads?
Both Calculator Advance Pro and RedoCalc show ads.
Which is updated more often, Calculator Advance Pro or RedoCalc?
Calculator Advance Pro ships an update fortnightly, and RedoCalc every 3 days. Most recently, Calculator Advance Pro was updated on October 24, 2026 and RedoCalc on October 25, 2026.

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