Comparison

Fomcal vs cFormula

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

Head to head
About

Fomcal

This app allows you to create and save custom calculation formulas for daily use. It supports complex functions, logical operations, and parameter studies, with options to export results as CSV. An optional numeric pad enhances input efficiency.

Highlights
  • Save and reuse custom formulas
  • Support for logical and comparison functions
  • Parameter study for variable analysis
  • Export results as CSV
  • Optional enhanced numeric pad
  • Extended syntax for branching and iteration
Features
Read full description

Fomcal is a calculator to calculate quickly with formula inputted already. Since you can register formulas used in daily routine by yourself, there is no need to search or to develop the dedicated calc app. Moreover, Fomcal can be also available as a general function calculator pad (option). Registered formula can be utilized as a function in the other formula or on the calcpad. And constants or variables can be used in these. Fomcal can show descriptions and a figure, about formulas and variables. In addition to the numeric functions such as trigonometric functions, you can also use the logical or comparison functions. By describing separated multiple of a formula with a semicolon';', you will be able to calculate these at the same time. Temporary variables are available in formula definition as followings. exp) x=1;x+2 result) 3 You can try a parameter study with specifying an initial value, a incrementation and a repeat number. The result can be exported as CSV data. Following formulas are preset as samples. ・Hypotenuse of Right Triangle - Geometry ・Cross-sectional Performance of Rectangle - Mechanics of materials ・Roots of quadratic equation - Mathematics ・Compound interest calculation - Business ・Number of years to become N times with compound interest calculation After purchase of "Enhancements (former Restriction Release)" with In-App purchase, you will be able to following functions. ・Export/import of formula data. ・A special numeric pad will be utilized for efficient inputting. ・Function calculator pad. ・Parameter study. From Ver.3.3, "Extended Syntax" feature is available. With $IF, $FOR, $WHILE or etc., branch or iterative operation is easily specified.

About

cFormula

Features
Read full description

Customize formulas and calculate at any time. I want to calculate using formulas, but most apps have built-in formulas. There are countless formulas in the world, and it is not easy to find the formula you need to use. Now you can create your own formula within 1 minute. Just 3 steps: 1. Take a photo or select a formula image in the album. 2. Add variables. 3. Enter an expression containing variables. The formula creation is completed, and the calculation is completed instantly by inputting the numerical value of the variable. 【 Main functions 】 ——Take pictures and crop them. ——Select an image and crop it. ——Set formula variables, support uppercase and lowercase letters in English and Latin, and support subscripts. ——A dedicated keyboard for expression input, simple and easy to use. ——Check the expression and prompt for incorrect positions. ——Number specific keyboard, clear and easy to use. ——Supports angle or radian calculation settings. ——Supports calculations such as arithmetic, exponent (power), root, trigonometric function, logarithm, etc. ——Support Scientific notation and factorial calculation. ——Supports constant inputs such as e and π. ——ICloud cloud synchronization creates formulas that are shared across multiple devices and can be used anytime. ——Support restoring after deletion. The deleted formula will be permanently deleted after 30 days. Tip: 1. The simplest formula is to have no images, no variables, and only expressions. You can use it to calculate mathematical formulas with fractions and multiple parentheses. Can be used all at once, next time clear the expression and input a new one. 2. The image of the formula is used to compare the input variable values during use. You can take photos of formulas on books, computer screens, or handwrite them. You can also use other software to edit screenshots of formulas. 3. The dedicated keyboard for expression input is for convenience and ease of use. You can also paste functions that the keyboard does not support in the expression input box, which may bring surprises.

Screenshots

Fomcal4 screens
cFormula4 screens

Verdict

The call

The clearest difference is price: cFormula at Free against Fomcal's $1.99. Fomcal's advantage is ads (none vs shown). On update cadence, in-app purchases, device support and iOS requirement 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

cFormula is free to download; Fomcal costs $1.99 up front. Fomcal sells 1 one-off in-app purchase and cFormula sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Fomcal ships an update every 3 months, cFormula every 5 months. The most recent releases landed on September 9, 2026 and August 25, 2026 respectively.

Scorecard2 real differences · 6 level
Fomcal versus cFormula: the parameters behind the verdict, then further details
ParameterFomcalcFormula
Price$1.99Free — better
Positive reviews75.0% of reviews—
Update frequencyEvery 3 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size6 MB13 MB
Age rating4+4+
DeveloperNOBORU IMAI疆 边

In-app purchases

1 purchases

Fomcal

One-time1
  • Enhancements$1.99
1 purchases

cFormula

One-time1
  • Fully unlock app$1.99

Questions

Is Fomcal free?
Fomcal costs $1.99, and also offers in-app purchases.
Is cFormula free?
cFormula is free to download, with in-app purchases available.
Do Fomcal or cFormula have ads?
cFormula shows ads; Fomcal does not.
Which is updated more often, Fomcal or cFormula?
Fomcal ships an update every 3 months, and cFormula every 5 months. Most recently, Fomcal was updated on September 9, 2026 and cFormula on August 25, 2026.

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