Comparison

CalcFlex vs Caculator

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

Head to head
About

CalcFlex

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Discover CalcFlex: Flexible, Free and Ad-Free Calculator App! Unlock the full potential of your calculations with CalcFlex, the flexible calculator app designed to cater to all your needs. Whether you're dealing with complex equations, unit conversions, financial calculations, or scientific formulas, CalcFlex has got you covered. Key Features: Multiple Calculators in Parallel: Seamlessly switch between different calculators for efficiency. Built-in Tools: Access unit converters, finance calculators, math and physics equations all in one app. Custom Equations: Create, save, and reuse your own equations with specific variables tailored to your needs. User-Friendly Design: Start with the familiar calculator layout, free to customize based on preference. Completely Free: No ads, no hidden fees, just pure calculating power. Download CalcFlex now and experience the freedom of a truly flexible and comprehensive calculator app!

About

Caculator

Perform basic arithmetic, scientific calculations, graphing, and percentages with a clean, modern interface. Features include a history log, interactive widgets, and customizable themes. It's designed for quick calculations and more advanced mathematical work.

Highlights
  • Basic arithmetic and percentages
  • Scientific functions (trigonometric, logarithms)
  • Graphing of multiple functions
  • Calculation history log
  • Interactive iOS widget
  • Light and dark modes
Features
Read full description

Make everyday math, scientific calculations, graphing, and percentages easier—all in one calculator. With a clean, modern interface, responsive buttons, and light and dark modes, it’s designed for quick calculations and more advanced work. **EVERYDAY CALCULATIONS** • Handle basic arithmetic, parentheses, and percentages • See your current equation and running result together • Track complex expressions with color-coded parentheses • Copy or share calculations with a single tap • Enjoy automatic decimal formatting and scientific notation for very large or small results **SCIENTIFIC CALCULATOR** • Explore trigonometric and inverse trigonometric functions • Switch between degrees and radians • Calculate logarithms, square roots, powers, factorials, and reciprocals • Work with mathematical constants π and e • Continue calculating from your previous result **GRAPHING CALCULATOR** • Plot multiple functions in different colors to compare curves • Use trigonometric functions, powers, logarithms, and more • Drag to pan and pinch to zoom • Adjust X and Y ranges to explore the details • Switch between degree and radian modes **PERCENTAGE CALCULATOR** • Find a percentage of any value • Discover what percentage one value is of another • Calculate percentage increases and decreases • Simplify discounts, budgets, price comparisons, and everyday financial math **CALCULATION HISTORY** • Keep your latest 20 calculations across basic, scientific, and percentage modes • Revisit previous results without starting over • Copy individual entries or your entire history **INTERACTIVE iOS WIDGET** • Perform basic calculations directly from your Home Screen • Get quick answers without opening the app • Available on iOS 17 and later **DESIGNED FOR YOU** • Choose light or dark mode for comfortable viewing • Enjoy a portrait layout designed for convenient one-handed use • Use the app in English, Spanish, Arabic, Russian, Simplified Chinese, Vietnamese, Portuguese, Japanese, or German • Benefit from right-to-left Arabic support and translated accessibility labels Whether you’re studying, working, checking a discount, or exploring a function, this calculator brings useful tools together in a simple, approachable design. Download today and make calculations effortless! Terms: https://sites.google.com/view/simple-calculator-app-plus/terms Privacy:https://sites.google.com/view/simple-calculator-app-plus/home to paywall

Screenshots

CalcFlex4 screens
Caculator4 screens

Verdict

The call

The clearest difference is ads: CalcFlex at none against Caculator's shown. Caculator's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence 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

Both are free to download. CalcFlex sells 3 one-off in-app purchases and Caculator sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CalcFlex ships an update every 9 days, Caculator every 2 weeks. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
CalcFlex versus Caculator: the parameters behind the verdict, then further details
ParameterCalcFlexCaculator
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size2 MB57 MB
Age rating4+4+
DeveloperDaniel Chiu Loong NgJanoGroup LLC

In-app purchases

3 purchases

CalcFlex

One-time3
  • +3 New Variables2 variants$1.99
  • +20 New Equation Slots2 variants$1.99
  • +1 New Calculator2 variants$3.99
2 purchases

Caculator

Subscriptions2
  • Premium - Weekly 3.99$3.997 Days
  • Premium - Annual 19.997 Days trial$19.991 Year

Questions

Is CalcFlex free?
CalcFlex is free to download, with in-app purchases available.
Is Caculator free?
Caculator is free to download, with in-app purchases available.
Do CalcFlex or Caculator have ads?
Caculator shows ads; CalcFlex does not.
Which is updated more often, CalcFlex or Caculator?
CalcFlex ships an update every 9 days, and Caculator every 2 weeks. Most recently, CalcFlex was updated on October 25, 2026 and Caculator on October 30, 2026.

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