Concentrations vs BioCalc Lab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
BioCalc Lab
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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.
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Verdict
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
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.
| Parameter | Concentrations | BioCalc Lab |
|---|---|---|
| Price | Free — better | $0.99 |
| Update frequency | Every 3 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Marcal Casas Cartagena | 长贵 周 |
In-app purchases
Concentrations
No in-app purchases
BioCalc Lab
No in-app purchases








