# ChemBioCalc: Lab Calculator — Molarity, Dilution, HPLC & PCR

> Molarity, Dilution, HPLC & PCR (iPhone/iPad app by mit Can ERM.)

- Source: https://appshunter.io/ios/app/chembiocalc-lab-calculator/id6762520756 (this page in markdown: same URL + `.md`)
- Developer: [mit Can ERM](https://appshunter.io/developer/1894513244)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 69 MB
- Languages: American English, Turkish
- Released: 2026-05-05
- Data updated: 2026-11-15

## What is ChemBioCalc?

ChemBioCalc is a lab calculator for chemistry, molecular biology and pharmacy. It puts 75+ lab tools in one app: molarity and molar mass, dilution (C1V1 = C2V2), buffer preparation, stoichiometry, titration, HPLC, PCR and qPCR, cell culture, ELISA, pharmacokinetics and method validation. Every tool shows the formula it uses, and the validation tools are referenced to ICH Q2(R2), EMA M10, USP 621 and ICH Q1E.

FREE TOOLS
- Molarity and solution calculator, concentration converter, molar mass
- Dilution calculator (C1V1 = C2V2), CFU and serial dilution
- Chemical equation balancer, stoichiometry, reaction yield, empirical formula
- Titration simulator with a live pH curve, Ksp, gas laws, thermochemistry, electrolysis
- HPLC mobile phase, HPLC gradient solvent volumes and system suitability
- Dissolution similarity f1 and f2 (FDA 1997, EMA 2010)
- DNA/RNA, PCR master mix and primer Tm, sequence tools, protein MW and pI
- Cell culture: counting, viability and passage
- Periodic table of 118 elements, scientific calculator, formula sheet, lab timer

PRO TOOLS
Analytical chemistry: buffer preparation (Henderson-Hasselbalch), standard curve and LOD/LOQ, method validation (ICH Q2(R2), EMA M10), measurement uncertainty, outlier tests, SPC and Gage R&R, HPLC column selector, HPLC method transfer (USP 621), HPLC sequence builder, GC, multi-component UV-Vis, IR/NMR/MS spectra, XRD, RGB colorimetry, adsorption isotherms, kinetics and thermodynamics, design of experiments (DoE and RSM), electrochemistry, Arrhenius.
Molecular biology: qPCR (ddCt, standard curve, primer efficiency), primer designer, cloning and restriction map, plasmid map, CRISPR guide RNA, NGS coverage, protein suite, enzyme kinetics (Michaelis-Menten), ELISA 4-PL, western blot, electrophoresis, gel/TLC analysis, microbiology.
Pharmacy: pharmacokinetics (1- and 2-compartment PopPK), bioequivalence (90% CI), renal and hepatic dose adjustment, dose converter (NOAEL to HED), release kinetics, particle size, encapsulation efficiency, stability and shelf life (ICH Q1E).
Experiment Assistant: runs a study step by step and tells you what to measure next.

LAB NOTEBOOK
Record experiments with photos, tags and projects. Export an entry as a PDF with Pro.

ACCOUNT AND SYNC
Optional account with email, Apple or Google sign-in. Sync your lab notebook, calculation history and validation projects across your devices. The app stays fully usable without an account.

ABBREVIATION GLOSSARY
Tappable explanations for 131 scientific abbreviations: LOD, LOQ, Cmax, AUC and more.

BILINGUAL
English and Turkish in every module, report and glossary entry.

REPORTING
Cited PDF reports on selected tools. CSV for Excel on selected tools and web calculators.

PRIVACY AND ADS
The app works fully without an account, and your calculations run on your device. Create an account only if you want cloud sync; then your lab notebook, calculation history and validation projects are stored on our servers so your devices stay in sync.
The free version is supported by ads. Ads use a device advertising identifier and usage data, and this data may be shared with advertising partners. Pro removes all ads.
You can delete your account and all synced data at any time from Settings, or at https://chembiocalc.com/delete-account

PRO SUBSCRIPTION
Unlimited calculations, all Pro tools, Lab Notebook Pro and an ad-free experience. Weekly, monthly and yearly plans.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://chembiocalc.com/privacy
Contact: support@chembiocalc.com
Web (Pro works here too): https://www.chembiocalc.com

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Weekly | $1.99 | per 7 days |
| Pro Monthly | $6.99 | per month |
| Pro Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Single Result | $0.99 | one-time |


## Is ChemBioCalc safe?

Not enough ratings yet to assess ChemBioCalc.

## Is ChemBioCalc legit?

ChemBioCalc: Lab Calculator appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for ChemBioCalc is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.8.11 — 2026-11-13

• Fixed a crash on Android when a Pro tool was opened straight from a notification or link.
• Dark mode now applies on every screen, even when it differs from your system setting.
• Gel/TLC analysis reads your photo, with guided lane selection.
• Dissolution f1/f2: plain-language notes when a guideline condition is not met, sample data that meets the FDA rule and a cleaner profile chart.
• Dilution, cell seeding and PCR warn you when a recipe is impossible.
• Text stays readable at large text sizes on more screens.

### 1.8.10 — 2026-11-06

• The back button now works on screens opened from a link.
• Easier to read at the largest text sizes: Timer, Home, Lab Notebook and tool headers.
• Timer: custom durations up to 999 minutes display correctly and the alarm window always shows its dismiss button.

### 1.8.9 — 2026-11-03

• HPLC gradient solvent calculator: enter your program, flow rate and injections to see how much solvent A and B to prepare. Free.
• f1/f2 and HPLC mobile phase are now free, with no account needed.
• f2 now checks individual unit values: the 12-unit and %RSD conditions under FDA or EMA rules (Pro).
• Open a result from chembiocalc.com in the app with the same values filled in.
• New What's New screen in Settings.
• Removed extra space at the top of some screens.

### 1.8.8 — 2026-10-30

• Buttons are more reliable: a quick double tap no longer opens the same screen twice or starts an action (share, export, save) twice.
• Restoring purchases from the subscription screen now shows the result.
• Small fixes and improvements.

### 1.8.7 — 2026-10-25

• Calculation fixes: % w/v unit conversion, dilution quick volumes in L/µL, IV drip duration, electrolysis moles with current efficiency, pH of very dilute acids, titration curves (strong acid–weak base, weak–weak), van 't Hoff thermodynamics.
• Clearer units and labels: enzyme kcat, protein cystine term, NGS read pairs, IR absorbance spectra, Temkin and D-R isotherm parameters, gas-law results in your chosen units.
• Empty fields no longer fall back to hidden default values; pharmacokinetics checks that bioavailability is a 0–1 fraction.
• ELISA dilution advice now uses the 4PL curve and blank-corrected OD.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-15.*