Comparison

CalcFlex vs Sextuple Calc

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

Head to head

CalcFlex

Flexible Calculator for All

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

Sextuple Calc

Features

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Display six calculators and perform calculations with each one.

Screenshots

CalcFlex4 screens

Sextuple Calc1 screens

Verdict

The call

The clearest difference is in-app purchases: Sextuple Calc at none against CalcFlex's 6. Sextuple Calc also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 17.0). CalcFlex's advantage is ads (none vs shown). On price and update cadence 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. Sextuple Calc asks for nothing beyond the download.

UpkeepUpdate frequency

CalcFlex ships an update every 9 days, Sextuple Calc every 2 weeks. The most recent releases landed on October 25, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 2 level

CalcFlex versus Sextuple Calc: the parameters behind the verdict, then further details
Parameter	CalcFlex	Sextuple Calc
Price	Free	Free
Update frequency	Every 9 days — better	Every 2 weeks
Ads	No — better	Yes
In-app purchases	Yes	No — better
Devices	iPhone	iPhone, iPad, iPod — better
Requires iOS	17.0	15.8.3 — better
Further details — not scored
Size	2 MB	36 MB
Age rating	4+	4+
Developer	Daniel Chiu Loong Ng	Hideaki Uchikoshi

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

None

Sextuple Calc

No in-app purchases

Questions

Is CalcFlex free?

CalcFlex is free to download, with in-app purchases available.

Is Sextuple Calc free?

Sextuple Calc is free to download, with no in-app purchases.

Do CalcFlex or Sextuple Calc have ads?

Sextuple Calc shows ads; CalcFlex does not.

Which is updated more often, CalcFlex or Sextuple Calc?

CalcFlex ships an update every 9 days, and Sextuple Calc every 2 weeks. Most recently, CalcFlex was updated on October 25, 2026 and Sextuple Calc on November 4, 2026.