Comparison

Calculator++P vs Simple Calculator.

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

Head to head
About

Calculator++P

This utility app simplifies calculations with expression input, one-touch discount and tax calculations, and automatic history saving. It offers a memory function and customizable decimal/punctuation formats for efficient use in everyday scenarios like shopping and estimations.

Highlights
  • Expression-based calculations
  • One-touch discount and tax calculation
  • Automatic calculation history
  • Memory function (M+, M-, MC, MAC)
  • Customizable decimal and punctuation formats
  • Resumable calculations after interruption
Features
Read full description

It is a calculator application which can calculate collectively by expressions like 100+30-50. Discount / premium calculation can be done with one touch. Calculation history is automatically recorded and can be confirmed at any time. You can use it in various scenes of everyday such as shopping, tax calculation, estimate. We emphasize easy-to-use and easy-to-view and it is simple. By using the calculation history, it is released from the trouble of doing the same calculation and taking notes many times. Also, you can reuse historical expressions and answers for calculation, so you can calculate efficiently. On the history screen you can calculate the total of the answers. Expressions are saved every time you enter them, so you can resume calculation immediately after you suspend or end the application. The answers are displayed while you are entering the formula, so you can easily recalculate. Discount calculation such as 20% and 30% discount can be done with one touch. As buttons preset in units of 5%, such as 5%, 10%, 15% are prepared, you can easily calculate. If you use the input box you can also calculate in 1% unit. Moreover, it can calculate with VAT inclusion / VAT exclusion with one touch. Multiple tax rates can be set. If there are multiple tax rates, you can select the tax rate smoothly by touching the calculation button of the tax and then sliding it. A memory key is installed. This allows you to store a totalizer at each break of a calculation and calculate the total value. It can be used conveniently for purchases, for example. 【Usage】 Press the "M +" key to add a sub-meter to the memory Press the "M -" key to subtract the subtotal from the memory Press the "M C" key to delete the last value stored in the memory (memory clear) Press the "M AC" key to delete all the values stored in the memory (memory all clear) If it is not use, you can turn it off from the setting. A mini-game of calculation is carried and you can do a gymnastication of head in idle time etc. [Function introduction] · You can enter expressions and calculate them all together · As with ordinary mathematical expressions, x and ÷ are calculated preferentially · You can calculate using () (You need to make settings on the setting screen in order to display keys) · As the expression becomes longer, the characters become smaller, so you can enter many numbers · You can select the format of the decimal point and punctuation mark 12,345,678.9 (English-speaking countries, Japan, China, etc.) 12.345.678,9 (Germany, Italy, Spain, etc.) 12 345 678,9 (France, Russia, etc.) 1,23,45,678.9 (India etc.) · Even if the application is interrupted or terminated during calculation, the formula at that time is saved, so you can resume calculation immediately · By using the check box on the history screen, you can calculate the total value of answers · Touch the history expression or answer, you can calculate by reusing those values · "00" key is attached · You can correct one character by backspace key · VAT and discount · premium calculation can be done with one touch · You can choose your favorite one from several designs · You can set the key to right-justified or left-justified so that it can be operated with one hand even on a large screen · You can select the number of decimal places to display · It corresponds to the consumption tax reduction tax rate · You can display it sideways on iPad · You can exercise your head with a calculation game

About

Simple Calculator.

A straightforward calculator designed for speed and accuracy, mimicking classic pocket calculators. It offers real-world logic, business-focused calculations like cost, sell, and margin, and a clean interface for effortless use.

Highlights
  • Real-world logic, no forced order of operations
  • Running total display
  • Cost, sell, margin calculations
  • Add/subtract percentages in one step
  • Clean, intuitive interface with large buttons
  • Minimal, non-intrusive ads
Features
Read full description

This is the calculator that gets it right—built for professionals, retailers, and anyone who needs fast, accurate math without the complexity. • Work smarter with real-world logic No forced order of operations—just like a classic pocket calculator with a running total. • Perfect for business use Easily handle cost, sell, and margin calculations. Add or subtract percentages in one step. • Clean, intuitive interface Large, labeled buttons and a crisp display make every calculation effortless. • Reliable and distraction-free Minimal ads, never intrusive—so you can stay focused, even in front of clients. Inspired by the Casio calculators you know and trust—modernized for your iPhone/ iPad. Download now and make everyday math faster, clearer, and smarter.

Screenshots

Calculator++P4 screens
Simple Calculator.4 screens

Verdict

The call

The clearest difference is price: Simple Calculator. at Free against Calculator++P's $2.99. Simple Calculator. also leads on rating (4.6 vs 4.2) and ratings volume (1.6K vs 5). Calculator++P's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.6). On review sentiment, update cadence, in-app purchases and device support 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

Simple Calculator. is free to download; Calculator++P costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Simple Calculator. holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: Simple Calculator. has 1.6K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 64% of Calculator++P's written reviews are positive against 65% of Simple Calculator.'s.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 21, 2026 and September 26, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator++P versus Simple Calculator.: the parameters behind the verdict, then further details
ParameterCalculator++PSimple Calculator.
Price$2.99Free — better
Rating4.2 (5 ratings)4.6 (1.6K ratings) — better
Positive reviews63.6% of reviews65.1% of reviews — better
Number of ratings51.6K — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size73 MB5 MB
Age rating4+4+
DeveloperYUTAKA KENJOtasser gyati

Customer experience

Calculator++P

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews22 reviews
Positive63.6%
Neutral13.6%
Negative22.7%

Simple Calculator.

All ratings1,599 ratings
Positive91.2%
Neutral3.3%
Negative5.4%
Written reviews126 reviews
Positive65.1%
Neutral7.9%
Negative27.0%

Bugs and requests

Calculator++P

Not enough reviews yet to summarise bugs or requests.

Simple Calculator.

Reported bugs

2 issues
  • Incorrect calculation results in some cases
  • Ads appearing during critical usage scenarios

Requested features

3 requests
  • Add a dedicated 'C' clear button
  • Provide more customization options for key layout
  • Implement a history/memory function

In-app purchases

None

Calculator++P

No in-app purchases

None

Simple Calculator.

No in-app purchases

Questions

Is Calculator++P free?
Calculator++P costs $2.99, with no in-app purchases.
Is Simple Calculator. free?
Simple Calculator. is free to download, with no in-app purchases.
Which has better reviews, Calculator++P or Simple Calculator.?
Simple Calculator. is rated higher. Calculator++P averages 4.2 out of 5 from 5 ratings, while Simple Calculator. averages 4.6 from 1.6K ratings.
Do Calculator++P or Simple Calculator. have ads?
Simple Calculator. shows ads; Calculator++P does not.
Which is updated more often, Calculator++P or Simple Calculator.?
Calculator++P ships an update every 3 months, and Simple Calculator. every 3 months. Most recently, Calculator++P was updated on September 21, 2026 and Simple Calculator. on September 26, 2026.

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