Comparison

Four Formula Calculator vs Calc+α

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

Head to head
About

Four Formula Calculator

Read full description

A free calculator app that allows you to calculate while looking at 4 formulas at the same time. Root calculation is also possible with root(number) such as root(2).

About

Calc+α

This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.

Highlights
  • Calculation history and review
  • Edit past calculations and recalculate
  • Tax-inclusive and exclusive calculation modes
  • Standard and reduced tax rate switching
  • Clear division and remainder display
  • Create and copy calculation sheets
Read full description

Calc+α is an app designed to make daily calculations easier and more efficient. Each feature is intuitive, enabling anyone to use it effortlessly. Whenever there's a need for calculations, Calc+α will be your reliable partner. **Calculation Sheet with History** Calculator+α saves your past calculations in a list, allowing you to review them anytime. It displays subtotals for each calculation, making verification simple. For different purposes like travel or shopping, you can create and copy various sheets to organize your calculations. No need to note down the calculation results on paper anymore. **Mistake Correction Feature** No worries about mistakes. You can edit past calculations and recalculate. By changing numbers, adding or removing rows, you can proceed with your calculations accurately. **Tax Rate Calculation** Switch between tax-inclusive and tax-exclusive calculations with just one button. Furthermore, effortlessly switch between standard and reduced tax rates, smoothing out calculations for products with different tax rates. **Division and Remainder Calculation** With a clear remainder display, you can instantly grasp intermediate results in calculations. By setting the truncation position, you can adjust the display of remainders to your liking. No more headaches with remainders in division.

Screenshots

Four Formula Calculator1 screens
Calc+α4 screens

Verdict

The call

The clearest difference is update cadence: Calc+α at every 3 weeks against Four Formula Calculator's every 2 months. Four Formula Calculator's advantage is iOS requirement (12.0 vs 16.4). On price, ads, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Four Formula Calculator ships an update every 2 months, Calc+α every 3 weeks. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 6 level
Four Formula Calculator versus Calc+α: the parameters behind the verdict, then further details
ParameterFour Formula CalculatorCalc+α
PriceFreeFree
Positive reviews—0.0% of reviews
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPod — betteriPhone
Requires iOS12.0 — better16.4
Further details — not scored
Size4 MB9 MB
Age rating4+4+
DeveloperSHIGETO TAKAGIAriane Inc.

In-app purchases

None

Four Formula Calculator

No in-app purchases

None

Calc+α

No in-app purchases

Questions

Is Four Formula Calculator free?
Four Formula Calculator is free to download, with no in-app purchases.
Is Calc+α free?
Calc+α is free to download, with no in-app purchases.
Do Four Formula Calculator or Calc+α have ads?
Both Four Formula Calculator and Calc+α show ads.
Which is updated more often, Four Formula Calculator or Calc+α?
Four Formula Calculator ships an update every 2 months, and Calc+α every 3 weeks. Most recently, Four Formula Calculator was updated on October 2, 2026 and Calc+α on October 3, 2026.

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