EEPocketworkbench vs Trial Clock

A complete electrical engineering calculator suite in your pocket — Ohm's Law, reactance, trace width, and more. No ads, no subscription, no nonsense. Pocket Workbench is a complete electrical engineering calculator suite built for engineers, technicians, students, and hobbyists — the tools you actually reach for at the bench, in the field, or mid-design. No ads. No subscription. No account required. Just the calculators you need, done right. CORE CALCULATORS Ohm's Law solver — instantly solve for voltage, current, resistance, or power from any two known values Voltage divider calculator Reactance & resonance — capacitive reactance, inductive reactance, and LC resonant frequency RC/RL time constants — including capacitor charging voltage over time PCB trace width calculator — IPC-2221 standard, internal/external layers, any copper weight Series/parallel resistor & capacitor combinations Delta (Δ) ↔ Wye (Y) network converter LED series resistor calculator Capacitor stored charge & energy SMD resistor code decoder (3/4-digit and R-notation) dB power ratio, voltage ratio, and dBm ↔ watts converters Skin depth calculator with material presets Battery life estimator COMPONENT SCANNER (bonus feature) Point your camera at a resistor, inductor, or capacitor and Sohm will attempt to read its value automatically — color bands for resistors and inductors, printed codes for capacitors. This feature is actively improving; the calculators above are the reliable core of the app. Built for real work: clean interface, fast input, accurate formulas — nothing you have to dig through menus to find. Whether you're laying out a PCB, sizing a trace, decoding a resistor, or just double-checking Ohm's Law at 2am, Pocket Workbench has it covered.

Trial Clock helps you keep track of free trials, renewal dates, and upcoming bills in one place. Set reminders before a deadline and keep account-management links handy so you can decide what to keep or cancel. FREE TRIAL TRACKING • Track free trials and one-time deadlines. • Choose multiple reminders from 1 to 14 days before a deadline. • Save prices, notes, and cancellation links. • Open Apple’s subscription-management page for App Store purchases. • See upcoming deadlines in Home Screen widgets. • Export your entries. TRIALCLOCK PRO — ONE-TIME PURCHASE • Add recurring subscriptions billed weekly, monthly, quarterly, or yearly. • Track Apple subscriptions and services billed directly by a provider. • See estimated monthly and annual spending, with currencies shown separately. • View upcoming bills on a calendar. • Organize subscriptions by payment-card nickname and optional last four digits. Trial tracking and trial reminders remain free. Pro is an optional, non-consumable purchase with no recurring fee. Restore your Pro purchase using the same Apple Account. Your entries are stored on your device, and reminders are scheduled locally. No app account is required. Billing dates, prices, and card labels are entered manually. Trial Clock does not connect to your bank, automatically import Apple subscriptions, verify charges, or cancel subscriptions for you. Complete cancellations with Apple or the service provider. Existing entries remain available when you update. Trial deadlines only become recurring subscriptions when you choose to convert them.