Comparison

Concentrations vs CloudLabs Common

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

Head to head
About

Concentrations

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Concentrations is a powerful chemical calculator designed for laboratory professionals who need fast, accurate concentration calculations in the field. Say goodbye to manual dilution factor calculations, density conversions, and purity adjustments. The Problem We Solve: Ever needed to prepare a 1M sulfuric acid solution, but your stock bottle only shows "98% w/w" with molecular weight and density? Concentrations does the complex math for you instantly—just input your stock solution data and get precise preparation instructions with a single tap. Key Features: Smart Dilution Calculator – Calculate dilution parameters from stock solutions or known molar concentrations with ease Comprehensive Concentration Types – Support for Molar, Normal, Molal, Mole Fraction, Mass Concentration, Volume Fraction, and more Simple Input, Powerful Results – Enter your compound's molecular weight, desired concentration, and volume—Concentrations handles the rest Customizable Precision – Adjust decimal places in results to match your experimental requirements Localized Interface – Automatically adapts decimal indicators to your regional format Who It's For: Perfect for chemists, laboratory technicians, students, and researchers who need reliable concentration calculations without the hassle of manual computation. Stop fumbling with calculators and conversion tables. Get accurate results every time with Concentrations.

About

CloudLabs Common

Features
Read full description

This simulator recreates a laboratory where you will find a bottle with ammonium, a bottle with ammonium chloride, a dropper with phenolphthalein and two pipettes. The objective of the practice is to find the equilibrium constant and determine the amount of ammonium chloride that is needed to have a given concentration of ammonia in solution.

Screenshots

Concentrations4 screens
CloudLabs Common1 screens

Verdict

The call

The clearest difference is update cadence: Concentrations at every 3 months against CloudLabs Common's every 27 months. CloudLabs Common's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 18.5). On price, ads 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Concentrations ships an update every 3 months, CloudLabs Common every 27 months. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.

Scorecard3 real differences · 3 level
Concentrations versus CloudLabs Common: the parameters behind the verdict, then further details
ParameterConcentrationsCloudLabs Common
PriceFreeFree
Update frequencyEvery 3 months — betterEvery 27 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.59.0 — better
Further details — not scored
Size7 MB75 MB
Age rating4+4+
DeveloperMarcal Casas CartagenaJiovany Orozco

In-app purchases

None

Concentrations

No in-app purchases

None

CloudLabs Common

No in-app purchases

Questions

Is Concentrations free?
Concentrations is free to download, with no in-app purchases.
Is CloudLabs Common free?
CloudLabs Common is free to download, with no in-app purchases.
Do Concentrations or CloudLabs Common have ads?
Neither Concentrations nor CloudLabs Common shows ads.
Which is updated more often, Concentrations or CloudLabs Common?
Concentrations ships an update every 3 months, and CloudLabs Common every 27 months. Most recently, Concentrations was updated on October 1, 2026 and CloudLabs Common on September 25, 2026.

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