Comparison

Concentrations vs BioCalc Lab

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

Head to head
About

Concentrations

Read full description

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

BioCalc Lab

Features
Read full description

BioCalc Lab is a precise, professional bioinformatics calculator designed for molecular biology researchers, students, and lab technicians. CALCULATORS INCLUDED PCR Setup Build your PCR reaction table interactively. Add or remove reagents, set stock and final concentrations, choose units from a dropdown, and get an instant pipetting summary with exact µL volumes — including nuclease-free water fill. Dilution (C1V1 = C2V2) Solve for any of the four variables in the dilution equation. Enter three known values and the result updates instantly, along with a plain-language pipetting instruction. Molarity Calculate mass, amount (mol), volume, or concentration using molar mass. Supports multiple input paths — enter whichever values you know and the correct result is derived automatically. Primer Analysis Paste or type any 5'→3' primer sequence. Instantly see: - Length and base composition (GC / AT counts and GC%) - Melting temperature via Wallace rule and a simplified nearest-neighbor formula (50 mM Na⁺) - Four quality checks: GC content, length range, self-complementarity, and 3' hairpin risk - Reverse complement sequence DESIGN PHILOSOPHY BioCalc Lab follows a dark lab-aesthetic interface — deep navy background, teal accent readouts, and monospaced numeric displays — so results are easy to read at a glance at the bench. PRIVACY No account required. No data collected. All calculations happen on-device.

Screenshots

Concentrations4 screens
BioCalc Lab4 screens

Verdict

The call

The clearest difference is price: Concentrations at Free against BioCalc Lab's $0.99. On ads, in-app purchases, device support and iOS requirement 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

Concentrations is free to download; BioCalc Lab costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
Concentrations versus BioCalc Lab: the parameters behind the verdict, then further details
ParameterConcentrationsBioCalc Lab
PriceFree — better$0.99
Update frequencyEvery 3 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS18.517.0 — better
Further details — not scored
Size7 MB3 MB
Age rating4+4+
DeveloperMarcal Casas Cartagena长贵 周

In-app purchases

None

Concentrations

No in-app purchases

None

BioCalc Lab

No in-app purchases

Questions

Is Concentrations free?
Concentrations is free to download, with no in-app purchases.
Is BioCalc Lab free?
BioCalc Lab costs $0.99, with no in-app purchases.
Do Concentrations or BioCalc Lab have ads?
Neither Concentrations nor BioCalc Lab shows ads.

Other comparisons