Comparison

Fast Molality Calculator vs VS&CoLab

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

Head to head
About

Fast Molality Calculator

Features
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Lab Calculator is a lightweight science calculator for common solution concentration work in class, lab preparation, and research routines. Switch between percent concentration, molarity, dilution, and ppm/ppb tools. Enter the known values, choose units, and calculate the missing value without setting up a spreadsheet. Key features - Percent concentration: calculate %, solute mass, or solution volume - Molar concentration: calculate concentration, molecular weight, mass, or volume - Dilution calculator: based on C1 x V1 = C2 x V2 - ppm/ppb calculator: trace concentration using mg/L - Unit selection: g, mg, ΞΌg, L, ml, ΞΌl, M, mM, ΞΌM, and more - Quick reset: clear inputs and start a new calculation - Compact layout: designed for fast use on small screens Useful for - Students preparing chemistry experiments - Researchers working with stock and working solutions - Users who often check percent concentration, dilution, or ppm values - Anyone who wants a simple calculator instead of a spreadsheet No account is required. Values entered for calculation are not sent to a server.

About

VS&CoLab

Features
Read full description

VS&CoLab is designed to inspire personal growth and professional development. It offers exclusive learning experiences to help you thrive. Join us on a continuous learning and empowerment journey within the VS&Co family. Download VS&CoLab today!

Screenshots

Fast Molality Calculator4 screens
VS&CoLab4 screens

Verdict

The call

The clearest difference is ads: VS&CoLab at none against Fast Molality Calculator's shown. VS&CoLab also leads on update cadence (every 3 weeks vs every 35 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Fast Molality Calculator ships an update every 35 months, VS&CoLab every 3 weeks. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

Scorecard2 real differences Β· 4 level
Fast Molality Calculator versus VS&CoLab: the parameters behind the verdict, then further details
ParameterFast Molality CalculatorVS&CoLab
PriceFreeFree
Update frequencyEvery 35 monthsEvery 3 weeks β€” better
AdsYesNo β€” better
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS15.015.0
Further details β€” not scored
Size30 MB78 MB
Age rating4+4+
DeveloperJIN-HYUNG KIMGrowth Engineering

In-app purchases

None

Fast Molality Calculator

No in-app purchases

None

VS&CoLab

No in-app purchases

Questions

Is Fast Molality Calculator free?
Fast Molality Calculator is free to download, with no in-app purchases.
Is VS&CoLab free?
VS&CoLab is free to download, with no in-app purchases.
Do Fast Molality Calculator or VS&CoLab have ads?
Fast Molality Calculator shows ads; VS&CoLab does not.
Which is updated more often, Fast Molality Calculator or VS&CoLab?
Fast Molality Calculator ships an update every 35 months, and VS&CoLab every 3 weeks. Most recently, Fast Molality Calculator was updated on November 7, 2026 and VS&CoLab on November 12, 2026.

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