CalcLedger

Professional tape calculator with 87 specialized tools for amateur radio, finance, geometry, and more. One-time purchase. No subscriptions, ever.

CalcLedger is a professional tape calculator with 87 specialized tools for amateur radio, finance, geometry, and more. One price of $7.99 unlocks everything on iPhone, iPad, and Mac. No subscriptions. No in-app purchases. Nothing held back.

THE TAPE THAT NEVER FORGETS See your work on an adding-machine tape that never loses a calculation. Every entry is labeled, editable, and automatically recalculated. Make a mistake? Tap any line to fix it. Need to add a line you skipped? Insert it anywhere. CalcLedger works the way you actually think.

Natural language entry lets you type the way you talk: • "12 boards @ $4.75" • "Labor 6 hrs @ $85" • "5 cans @ $73.95"

Real-time syntax highlighting confirms your entry as you type. Save and name as many tapes as you need, export them as professional PDFs, and sync everything across your devices with iCloud. Works completely offline when you need it most.

AMATEUR RADIO: 47 TOOLS Built by a licensed ham operator for field operations, POTA activations, and the workbench.

Antennas (16) • Dipole, Inverted-V, End-Fed Half-Wave • Ground Plane Vertical with interactive 4-view diagram • J-Pole, Moxon Rectangle, Yagi-Uda, Small Transmitting Loop, and more

RF and Signal (21) • SWR, Coax Loss, Impedance Matching • ERP/EIRP, dB/Power Converter, Ohm's Law, Resistor Color Code, and more

Station Tools (10) • Grid Square and Location, Bearing and Distance, Sunrise and Sunset • US Amateur Bands, US License Privileges • CW Speed, Phonetic Alphabet, Q-Code Reference, and more

FINANCIAL: 17 TOOLS • Mortgage Payoff with Pay Down vs. Invest comparison • Loan Amortization with full payment schedule • Compound Interest, ROI, Retirement Savings • Yield at Maturity with interactive donut chart, Compare Two CDs • Break-Even, Profit Margin, and more

GEOMETRY: 10 TOOLS Area, perimeter, and volume for circles, triangles, rectangles, spheres, cylinders, cones, and more.

UNIT CONVERTERS: 9 TOOLS Length, weight, volume, pressure, energy, temperature, data storage, area, and speed.

DATE AND TIME: 3 TOOLS Date Calculator with dual calendar view, Date Difference, and Time Zone Converter.

HEALTH: 1 TOOL BMI calculator.

EVERYTHING INCLUDED • 4 themes: Day, Night, Classic, and Retro with monospaced fonts • Adjustable font size and decimal places • Accounting format option • Sound system and haptic feedback • 9-chapter built-in help manual • iCloud sync across iPhone, iPad, and Mac • Copy to Tape from any specialized calculator • Full offline support; no internet required

One price. Fully unlocked. iPhone, iPad, and Mac. Built by a ham, for hams and everyone who needs their work to add up.