Comparison

Calculator # vs Formalize Light

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

Head to head
About

Calculator #

This multi-function calculator offers basic to advanced scientific and algebraic computations. It includes features like handwriting recognition, equation solvers, and 2D graphing, making it suitable for students and professionals. In-app purchases unlock advanced capabilities.

Highlights
  • Math Photos Solver
  • Handwriting Recognition
  • AI Math Problem Solver
  • Mathematical Display
  • Equation Solvers
  • 2D Graphing
  • Algebraic Functions
Features
Read full description

◉ Over 11,000,000 Downloads Worldwide ◉ Top Free Utilities Apps in US, UK, AUS, CAN, GER,... ◉ Rated & Reviewed on ILoveFreeSoftware.com FREE Alternative to Graphing TI-83, TI-84, TI-89, Casio FX, Sharp EL,... Calculator # – The free, multi-function calculator for iPhone/iPad is proud to offer a variety of features to satisfy wide ranges of customers: The App possesses a powerful math core and algebra engine with mathematical display support, making it a viable tool for everyone from those looking for basic calculation to more advanced users, such as scientific computation, engineers, and math students. Calculator # makes available everything you need – including a user manual and tutorial video clips – so you can master the app in a matter of minutes! ◉ Official Website: http://iPhoneCalculator.com ◉ ADVANCED FEATURES: ▸ Math Photos Solver * ▸ Handwriting Recognition * ▸ Math Problem Solver (AI) * ◉ GENERAL FEATURES: ▸ Universal Calculator App ▸ Support All the Latest Devices ¹ ▸ Support Multitasking (iPad) ▸ Support Wireless KB ² ▸ Mathematical Display ▸ Edit & Export Expression/Result ▸ History Tape View ▸ Basic Calculations (+, -, x, ÷, %, Abs,...) ▸ Advanced Functions (Sin,Cos,Ln,X!, ^, √,…) ▸ 14 Memory Variables (Including X,Y,Z,M) ▸ Assignment Operator ▸ F(x) Customize Functions (F1 Only) ▸ Fraction and Degree/Angle Calculation ▸ Numeric Integral Calculation ▸ Dual Skins (Silver Light & Carbon+) ◉ ALGEBRA FEATURES: ▸ Big Integer & Rational Number (Up to 30!) ▸ Expand and Factor Polynomials ▸ Basic Indefinite integral ◉ EQUATIONS SOLVERS: ▸ Quadratic Equations ▸ System of Linear Equations (2 Unknowns) ◉ 2D GRAPH: ▸ Snap to Points ▸ Smooth Zoom & Transformation ▸ Support F(X,Y) = 0. E.g. Sin(X) + Cos(Y) = 0. ◉ MULTIPLE LANGUAGES: ▸ English, Spanish, German, ▸ French, Japanese, Chinese (*) In-App-Purchase is required ¹: Include iPhone 6/6S+ HD Retina Display ²: Standard English KB We love your feedback, Thanks a lot ! Terms of Service: https://iphonecalculator.com/terms-of-service/

About

Formalize Light

This utility app provides a keyboard extension for typing mathematical formulas on iOS devices. It offers easy access to over 100 symbols and generates professionally typeset equations that can be converted to TeX.

Highlights
  • Mathematical keyboard extension
  • Over 100 symbols
  • One-handed access
  • Professionally typeset formulas
  • Convert formulas to TeX
  • Insert formulas into any app
Features
Read full description

Do you wish you could properly type math on your iPhone or iPad? With Formalize, you can! Formalize is a keyboard extension for mathematical content. It provides intuitive one-handed access to more than 100 symbols and produces professionally typeset formulas. Easily convert your formulas to PNG* or TeX and insert them anywhere, in any app! * Not available in Formalize Light

Screenshots

Calculator #4 screens
Formalize Light1 screens

Verdict

The call

The clearest difference is review sentiment: Calculator # at 60% against Formalize Light's 17%. Calculator # also leads on rating (4.6 vs 2.3) and ratings volume (36K vs 4). Formalize Light's advantage is in-app purchases (none vs 6) and ads (none vs shown). On price 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. Calculator # sells 6 in-app purchases, starting at $1.49 per month. Formalize Light asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator # holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: Calculator # has 36K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 60% of Calculator #'s written reviews are positive against 17% of Formalize Light's.

UpkeepUpdate frequency

Calculator # ships an update every 2 months, Formalize Light every 12 months. The most recent releases landed on September 25, 2026 and June 10, 2026 respectively.

Scorecard8 real differences · 2 level
Calculator # versus Formalize Light: the parameters behind the verdict, then further details
ParameterCalculator #Formalize Light
PriceFreeFree
Rating4.6 (36K ratings) — better2.3 (4 ratings)
Positive reviews60.0% of reviews — better16.7% of reviews
Number of ratings36K — better4
Update frequencyEvery 2 months — betterEvery 12 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.110.3 — better
Further details — not scored
Size57 MB62 MB
Age rating4+4+
DeveloperIncpt.MobisBen Hambrecht

Customer experience

Calculator #

All ratings35,876 ratings
Positive90.4%
Neutral3.8%
Negative5.8%
Written reviews463 reviews
Positive60.0%
Neutral6.5%
Negative33.5%

Formalize Light

All ratings4 ratings
Positive25.0%
Neutral25.0%
Negative50.0%
Written reviews6 reviews
Positive16.7%
Neutral33.3%
Negative50.0%

Bugs and requests

Calculator #

Reported bugs

3 issues
  • Crashes when trying to use certain functions
  • Handwriting recognition not working reliably
  • Inability to input negative numbers

Requested features

3 requests
  • Add option to turn off animation
  • Improve ad placement to avoid obstructing usage
  • Provide more transparency on paid features

Formalize Light

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Calculator #

Subscriptions4
  • PRO Upgrade 1 Month3 Days trial$1.491 Month
  • PRO Upgrade 3 Months7 Days trial$2.993 Months
  • PRO + Recognition 1 Month$4.991 Month
Show 1 more
  • PRO + Recognition 3 Months$11.993 Months
One-time2
  • 250 AI Recognition & Queries$0.99
  • 600 AI Recognition & Queries$1.99
None

Formalize Light

No in-app purchases

Questions

Is Calculator # free?
Calculator # is free to download, with in-app purchases available.
Is Formalize Light free?
Formalize Light is free to download, with no in-app purchases.
Which has better reviews, Calculator # or Formalize Light?
Calculator # is rated higher. Calculator # averages 4.6 out of 5 from 36K ratings, while Formalize Light averages 2.3 from 4 ratings.
Do Calculator # or Formalize Light have ads?
Calculator # shows ads; Formalize Light does not.
Which is updated more often, Calculator # or Formalize Light?
Calculator # ships an update every 2 months, and Formalize Light every 12 months. Most recently, Calculator # was updated on September 25, 2026 and Formalize Light on June 10, 2026.

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