Calculator HD Pro vs ChemCheck

A colorful calculator with big buttons, comprehensive features, and extensive customization. Used by millions. Completely ad-free. SEE EVERY STEP ・Dual-line display - shows your input and result simultaneously ・Multi-line input for long equations ・Tap & hold to move the cursor or copy and paste where you want SAVE YOUR WORK ・History saves every calculation with time and date ・Label important calculations for easy reference ・Email single calculations or complete history ・Swipe down to review previous work CUSTOMIZE EVERYTHING ・6 layouts including extra-large button options ・10 color themes plus Dark Mode ・Adjustable font size and bold text ・Left-handed mode ・Show or hide features you don't need SCIENTIFIC FUNCTIONS ・Full scientific calculator when needed ・Memory buttons with values displayed ・Percentage and backspace buttons ・Automatic scientific notation ・VoiceOver accessibility OPTIONAL IN APP PURCHASES ・Today View Widget (iOS 17 and below) ・Multiple History Tapes ADDITIONAL FEATURES ・Customizable button symbols and decimal settings ・Multiple backspace button styles ・iPad Split View and 3D Touch support ・Gesture controls for quick access URL Scheme: calculatorhdpro://

ChemCheck is agri-chemical stock control built for the people who actually use the chemicals. Spray programmes fail for boring reasons: a drum that ran out, a batch that expired last season, a record nobody wrote down. ChemCheck keeps your chemical store accurate and current, so you know what you have and what it cost before you plan the next application. YOUR CHEMICAL LIBRARY Build a catalogue of every product you use, with the detail that matters at the shed door: • Product name, active ingredient and manufacturer • Item code and barcode • Formulation type, category and measure • Container type, size and unit — bottles, bags, drums • Metric or imperial measure, per your preference Archive products you no longer carry without losing their history. STOCK BY BATCH, NOT JUST BY TOTAL Chemicals do not arrive as a number. They arrive as batches, and a batch is what a withdrawal, an expiry or a query actually attaches to. • Receive stock against a new batch, or top up an existing one • Record manufacture, expiry and received dates per batch • Withdraw stock with a reason, and see the running balance • Every movement kept, so the balance is always explainable • Highlight products approaching expiry, with a warning window you set APPLICATION RECORDS Log what was applied where, and keep the record for the season. Usage reports pull together what left the store and why, so the paperwork is a by-product of doing the job rather than an evening task. BUILT FOR MORE THAN ONE FARM If your account covers several farms, each keeps its own stock and can either share your chemical library or maintain its own catalogue — useful when enterprises carry genuinely different products. Switch between farms without signing out. WEATHER AT A GLANCE Current conditions for the farm's location, on the same screen as the stock you are about to use. IPHONE AND IPAD One app, laid out properly for both. On iPad the split view puts your stock list and its detail side by side; on iPhone everything is reachable one-handed. Your data syncs between devices automatically. SUPPORT Questions or problems: use the Support link on this page. We are a small team and we answer.