PPTControl vs BenchBuddy

More than a simple clicker: Control PowerPoint, Keynote, and Google Slides on Mac or Windows from your iPhone, iPad, or Apple Watch. Keep your slides and speaker notes in view, highlight key points, and move freely around the room. PRESENT WITH CONFIDENCE • Move to the next or previous slide • Start and end presentations • Black or white out the presentation screen • Present directly from your Apple Watch STAY ONE STEP AHEAD WITH PRO • Preview slides and jump directly to any slide • View speaker notes while presenting • Control the cursor and use it as a laser pointer • Change slides with the volume buttons on your iPhone or iPad — without looking down No account required. PPTControl does not upload your presentation files and includes no ads or tracking. COMPATIBILITY • Microsoft PowerPoint on Windows and macOS • Apple Keynote on macOS • Google Slides on Windows and macOS • iPhone, iPad, and Apple Watch Speaker notes and slide previews are only available for supported PowerPoint and Keynote presentations. Apple Watch control works through the connected iPhone. GET STARTED 1. Download and open the PPTControl Desktop app on your Mac or Windows PC at https://pptcontrol.app. 2. Open PPTControl on your iPhone or iPad and select your computer or scan the pairing qr code. 3. Confirm the connection on your computer and start presenting. PPTControl has been downloaded more than 250,000 times worldwide. Privacy: https://pptcontrol.app/privacy Terms: https://pptcontrol.app/terms

BenchBuddy bundles the calculations you reach for every day at the molecular-biology and biochemistry bench — from reagent weighing to PCR, gels, and pipetting steps — fast, in one place. Tools included • Reagent mass — how much to weigh from concentration × volume × molecular weight, with optional solvent correction from the actual mass weighed. • Dilution — the volumes you need from stock concentration, target concentration, and final volume. Supports multi-component mixes. • Serial dilution — build a serial dilution series from a stock; see per-tube transfer and diluent volumes, with a warning when transfers get too small to pipette accurately. • PCR master mix — build a master mix from reaction volume, reaction count, and overage, including per-tube additions. • Tm (melting temperature) — compute Tm and a suggested annealing temperature from a primer sequence, via the basic rule or the nearest-neighbor (NN, SantaLucia) method, with Na⁺ and oligo concentration. • OD260 → nucleic-acid concentration — concentration from A260 and nucleic-acid type (dsDNA/ssDNA/ssRNA), with A260/A280 purity. • Mass ↔ moles — convert amount (pmol) ↔ mass (µg) and copy number from length (bp/nt) or molecular weight. • Ligation ratio — insert amount (ng) needed for a target molar ratio (1:1–5:1) from vector/insert lengths and vector mass. • Hemocytometer — from your cell counts, compute cell concentration, viability (trypan blue), and seeding volume. Pick the chamber type (Neubauer improved / Bürker-Türk / Fuchs-Rosenthal / Thoma / custom) to auto-set the chamber factor. • OD600 → cell density — estimate density from OD600 with an organism preset (E. coli / yeast / custom) and dilution; editable factor; reverse to the OD600 for a target density. • Doubling time — doubling time, population doublings, and specific growth rate from initial/final counts and elapsed time (hours or days). • Confluency → cell number — estimate cell number from confluency (%) and vessel area (T25–T175, 6–96-well). • Passage planner — toggle seeding-density / split-ratio; computes suspension volume, medium to add, and the number of new vessels. • Gel predictor — preview how bands migrate from your ladder, agarose percentage, and sample band sizes. • Plate layouts — design 6–384-well (6/12/24/48/96/384) plate maps: group samples/conditions, set per-well concentrations and serial-dilution gradients down columns, and export as an image, CSV, or Markdown. • Bench steps — create pipetting steps over well ranges (e.g. A1:A12) and track progress in row- or column-major order. • Recipe saving & sharing — save the calculations you use often and recall them with one tap; export/import recipes as .benchbuddy.json files to share with labmates. • Result sharing — copy or share any calculation result as text, ready to paste into Notion, Slack, or your ELN. All calculations run on your device. The app is free and supported by ads.