# MathLib: Formula Calculator — Save and reuse your math

> Save and reuse your math (iPhone/iPad app by Andreu Pifarre.)

- Source: https://appshunter.io/ios/app/mathlib-formula-calculator/id6814852426 (this page in markdown: same URL + `.md`)
- Developer: [Andreu Pifarre](https://appshunter.io/developer/1518351729)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 17.0 · 15 MB
- Languages: American English
- Released: 2026-10-01
- Data updated: 2026-10-13

## What is MathLib?

Do the math once. Use it again.

MathLib turns the calculations you repeat into reusable tools. Work through a quick calculation, keep the steps that matter, and change the inputs next time instead of typing everything again.

START CALCULATING RIGHT AWAY

Write expressions, see their results, and use named values in later calculations. Keep related steps together while you work through everyday math, study problems, or technical calculations.

KEEP THE STEPS, NOT JUST THE ANSWER

Save a useful calculation as a personal formula. Choose its inputs and outputs, then run it whenever you need it. Adjust a number or slider to see the results update without rewriting the expressions.

SKIP THE BLANK PAGE

Explore 104 ready-made formulas across 13 categories, including finance, geometry, physics, engineering, statistics, and unit conversions. Preview a formula for free, or save your own copy to customize.

GO BEYOND A SINGLE NUMBER

Use scientific functions, units, fractions, complex numbers, vectors, and matrices. Add plots to explore how a result changes across a range. Built-in function suggestions and a searchable reference help you find the syntax you need.

YOUR MATH, ON YOUR IPHONE

Calculate, browse the catalog, and run saved formulas offline. Your personal formulas stay on your iPhone: no account, cloud sync, ads, or tracking. Scratch calculations are temporary; save a formula to keep useful work.

FREE TO CALCULATE. PRO TO SAVE MORE.

The full calculator, all 104 templates, plotting, units, and reference are free. Save up to 2 personal formulas with Free. MathLib Pro removes that saving limit with a one-time purchase. No subscription. Purchases and restoration require access to the App Store.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| MathLib Pro | $14.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-10-01

No release notes.

## More apps by Andreu Pifarre

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All apps by Andreu Pifarre: https://appshunter.io/developer/1518351729

## Related topics

[formula calculator](https://appshunter.io/ios/topics/formula-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-13.*