Lab Tools Pro for iPhone, iPad and Apple Watch

Everything between the protocol and the pipette.

130 calculators and lab tools, 142 guided protocols, bench timers, inventory and a lab notebook. Built on high-precision decimal arithmetic, and kept on your device.

Download on the App Store Pricing and free trial

Made by Dr. Shankar Dutt of DuttLabs, a working scientist who wanted bench math that is fast, exact, and stays on the device.

Bench Mode on iPhone: step 5 of a Western blot with a 47 minute step timer and a reagent checklist Lab Tools Pro home screen on iPhone with most-used calculators, a tip of the day and favorites

Plan

Work out the assay before you open a single tube.

Build a master mix with overage and dead volume, map every well of the plate, then fit the standards and read your unknowns off the curve.

Master Mix Builder for 24 SYBR Green reactions with 10 percent extra volume
Master Mix Builder Scale any recipe to your reaction count, with percent overage, extra reactions or dead volume, and save it as a template.
Plate Layout Planner showing a 96-well BCA plate with standards, samples and blanks assigned
Plate Layout Planner Lay out 6- to 384-well plates with standards, samples, blanks and replicates, then export the map.
Standard curve with a quadratic fit, residuals plot and a standards QC table
Standard curves Compare linear, quadratic and 4PL fits, check residuals and replicate CVs, and interpolate unknowns.

Run

Follow the protocol with gloves on.

Bench Mode turns any of the 142 protocols into one large step at a time. The screen stays on, each step carries its own timer, and reagent amounts scale to your batch.

  • Timer chains that walk through a protocol, step after step
  • Several timers at once, plus a stopwatch and counters
  • Live Activities, and alerts when a step is done
  • Timers and protocol steps on Apple Watch
Timers screen with two timer chains and two running timers Western blot protocol steps on Apple Watch

Stock

Know what is on the shelf, and make the rest.

Track reagents with locations, lots and expiry dates, make buffers from the stocks you already have, and print labels that scan back into the app.

Lab inventory with low-stock and expiring-soon counts and a list of chemicals and reagents
Inventory Low-stock and expiry reminders, barcode scanning, and storage locations for every item.
RIPA lysis buffer recipe scaled to 250 mL with amounts for each component
Recipes 50+ media, buffers and stocks. Scale the volume or strength, or make them from stock solutions.
Print Label sheet preview with QR labels on an Avery label sheet
Labels Printable QR label sheets in common Avery formats, starting at any position on a used sheet.

Record

Write it down where the work happened.

Notebook entries link the calculations and protocols you used, hold photos and scans of gels and plates, and export to PDF or CSV when it is time to share.

  • Linked calculations and protocols on every entry
  • Photos and scans stay on the device with the entry
  • References, enzymes, ladders, codons and PubMed search
Notebook entry with next steps, linked dilution and molarity calculations, and linked protocols

Calculators

Seventeen categories, one plate.

Every calculator is framed for research and teaching labs. Clinical decision support, diagnosis, treatment and patient dosing are intentionally left out.

  1. Solutions

    Molarity, dilution, serial dilution, percent solutions, osmolarity, media

  2. pH and buffers

    pH, Henderson–Hasselbalch, buffer capacity and recipes

  3. Nucleic acids

    Quantification, primer Tm, copy number, qPCR ΔΔCt, ligation

  4. Proteins

    A280, Bradford and BCA, molecular weight, pI, SDS-PAGE, antibody dilution

  5. Cell biology

    Hemocytometer counts, seeding, doubling time, MOI, transfection

  6. Centrifugation

    RCF and RPM conversion, pelleting time

  7. Enzymes

    Enzyme units, enzyme dilution, Michaelis–Menten

  8. Statistics

    Descriptive stats, t-tests, sample size, LOD and LOQ, curve fitting

  9. Spectroscopy and chromatography

    Beer–Lambert, FRET, HPLC resolution, Kovats index, mass spec

  10. Nanopore

    Pore sizing, blockade, dwell and translocation time, capture rate, noise

  11. Microbiology and virology

    CFU, OD600 growth curves, MIC, plaque assays, TCID50

  12. Pharmacology and toxicology

    IC50 and EC50, half-life and clearance, volume of distribution

  13. Bioinformatics

    Sequence composition, reading frames, restriction maps, codon usage

  14. Environmental and analytical

    BOD and COD, dissolved oxygen, water hardness, ppm and ppb

  15. Thermodynamics and kinetics

    Gibbs free energy, Arrhenius, van’t Hoff, Nernst

  16. Materials and physics

    DLS particle size, zeta potential, Bragg’s law, viscosity

  17. Food science and agriculture

    Water activity, Brix, titratable acidity, Q10 shelf life

  18. Blank

    Missing a calculation you use? Request it.

Tour

A two-day Western blot in twenty-three seconds.

One experiment from lysis buffer to notebook entry: the plate, the curve, the Block timer, the overnight step on Apple Watch. With voiceover and captions.

Watch the vertical cut (9:16)

Devices

At home on iPad, close at hand on Apple Watch.

Standard curve analyzer on iPad with assay settings, a standards table and the fitted curve side by side
iPad A sidebar for every section, keyboard shortcuts and the menu bar, and calculators in their own windows.
Calculator list on Apple Watch with molarity, dilution and unit converter Inventory on Apple Watch showing an ECL substrate that is expiring soon
Apple Watch Timers, quick calculations, protocol steps and inventory, free with any plan.

iPhone and iPad, in sync Calculation history syncs through your private iCloud account. Everything else stays on the device where you made it.

Access

One toolkit, three ways to unlock it.

Every plan unlocks the full app on iPhone and iPad, and the companion Apple Watch app is free. The yearly subscription includes a 7-day free trial for eligible new subscribers; the monthly plan has no free trial. Apple shows localized pricing, trial eligibility, renewal terms, and a confirmation before any charge.

Monthly

$2.99/month

No free trial

Billed when you subscribe and auto-renews monthly unless cancelled.

Yearly Best value

$19.99/year

Includes 7-day free trial

Auto-renews yearly after the trial unless cancelled. Works out to about $1.67 per month.

Lifetime

$39.99 once

One-time purchase

Pay once and restore through the same Apple ID. No recurring charge.

Download on the App Store

Restore Purchases is available inside the app on any device signed in with the same Apple ID.

Terms of Use Privacy Policy Refunds are handled by Apple at reportaproblem.apple.com.

Questions

Honest answers before you commit.

Is there a free version?

There is no permanent free tier on iPhone and iPad. Lab Tools Pro is a paid app with a hard paywall, but you can try the Molarity calculator free inside the app before you pay. The yearly subscription also includes a 7-day free trial for eligible new subscribers, so you can use the full app at no cost for the first week and cancel any time before it ends; the monthly plan has no free trial. The companion Apple Watch app is free.

Which devices does it run on?

Lab Tools Pro runs on iPhone and iPad, with a companion Apple Watch app. One purchase covers your iPhone and iPad when you are signed in with the same Apple ID.

Does my data sync, and is it private?

The app is local-first. Your calculation history can sync between your iPhone and iPad through your private iCloud account. Notebook entries, inventory, custom protocols, recipes and timers stay on the device where you create them. Export Data in Settings saves your calculation history, favorites, app settings, custom protocols, inventory, master mix templates, recipes, reagents and plate layouts to a file you can import on another device. Notebook entries export as PDF or CSV from the Notebook, and timers are not exported. There are no advertising or tracking SDKs.

How do refunds and cancellations work?

Purchases and subscriptions are handled by Apple. You can cancel a subscription any time from your Apple ID settings, and you can request a refund through Apple at reportaproblem.apple.com. Lifetime access can be restored on any device with the same Apple ID.

Can I use it offline?

Yes. Calculators, bundled references, protocols, notebook entries, inventory, and timers work without a connection. PubMed search, iCloud sync of calculation history, and purchases need internet access.

Can I use it for clinical or diagnostic work?

No. Lab Tools Pro is for research and education only. It is not for diagnosis, treatment, patient care, patient dosing, or regulated decision making. Always verify critical calculations independently.

Privacy

Local-first by default.

Calculator values, notebook entries, custom protocols, timers, and inventory data are processed on device. Optional services activate only when you use them. This website loads no fonts, scripts or trackers from anyone else, either.