# Formules — Create and evaluate formulas

> Create and evaluate formulas (iPhone/iPad app by Christophe Lestrade.)

- Source: https://appshunter.io/ios/app/formules/id1474465816 (this page in markdown: same URL + `.md`)
- Developer: [Christophe Lestrade](https://appshunter.io/developer/442810628)
- Category: Utilities, Education
- Price: $0.99
- Age rating: 4+
- Requires: iOS 16.0 · 25 MB
- Languages: English
- Released: 2019-07-30
- Data updated: 2026-06-10
- User reviews in markdown: https://appshunter.io/ios/app/formules/id1474465816/reviews.md

## What is Formules?

Engineers, scientists, and students often need to perform calculations that are difficult to enter on a calculator. If the calculations involve various formulas, with the need to test various input values, a programming language is appropriate, but source code will never be as intuitive as well-rendered mathematics for designing a formula.
 
With Formulas create beautifully rendered formulas and evaluate them!

You can use real and boolean expressions. 

Formulas can be used in other formulas.

On each document, you can define a set of inputs that are used to populate your formulas with values.

The main features are:

-Easily create complex formulas and save them for later use.
-Use as many formulas as necessary.
-Undo/Redo support.
-Change the value of your inputs with immediate results updating.
-Documents created with the iOS version can also be used with the macOS version.


## Version history (last 5 releases)

### 3.0.0 — 2023-10-20

It is possible to add new parameters to a function when this function is already used.
Various interface improvements.

### 2.11.0 — 2023-03-26

Improved errors reporting.
It is possible to add a description to the document, the formulas, the inputs, the constants, the function and the function parameters.

### 2.10.0 — 2023-01-27

It is possible to inspect curve point details when touching a graph.
Added shortcut to create new elements directly from the sections headers.

### 2.9.0 — 2023-01-01

Updated for compatibility with the iOS 'Formule lite' application.

### 2.8.0 — 2022-12-26

The rendering of the graphs has been improved.

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## More apps by Christophe Lestrade

- [Formules lite](https://appshunter.io/ios/app/formules-lite/id1661745855)

All apps by Christophe Lestrade: https://appshunter.io/developer/442810628

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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 2026-06-10.*