FormulaPad

Calculate formulas, reuse variables, save math notes, convert units, and plot simple functions on iPhone.

FormulaPad is a local-first math notebook calculator for iPhone.

Type natural formulas, reuse variables, keep calculation history, save useful results as notes, and use practical templates for everyday math. FormulaPad is built for students, teachers, engineers, and anyone who wants calculations to stay organized after the answer appears.

Key features:

• Natural formula input and scientific functions
• Variables such as price = 299 and count = 12
• Calculation history with reuse and favorites
• Math notes with title, category, remarks, and result
• Templates for percentage, discount, compound interest, BMI, loan payment, average, triangle area, and speed
• Unit conversion for length, weight, area, volume, temperature, time, and speed
• Simple function plotting for expressions such as x^2 and sin(x)
• Local data storage, no account required
• FormulaPad Pro is a one-time unlock, not a subscription

FormulaPad does not include ads, third-party analytics, tracking, or a custom account system.