# Quadrilateral Calculator vs Formula Motion

The clearest difference is review sentiment: Formula Motion at 100% against Quadrilateral Calculator's 0%. Formula Motion also leads on update cadence (monthly vs every 23 months) and price ($0.99 vs $2.99). On ads, in-app purchases, monetization model and device support there is nothing between them.

Quadrilateral Calculator costs $2.99 and Formula Motion $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quadrilateral Calculator ships an update every 23 months, Formula Motion monthly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Quadrilateral Calculator | Formula Motion |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quadrilateral-calculator/id1626770065/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 1 MB | 40 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [锐 冯](https://appshunter.io/developer/1896254031) |

## What reviewers say

### Quadrilateral Calculator

[App page](https://appshunter.io/ios/app/quadrilateral-calculator/id1626770065)

Instantly solve any quadrilateral with this comprehensive calculator. Features multiple input modes, detailed calculations, and live visualization. Ideal for students, engineers, and geometry enthusiasts.

**Highlights:** Multiple input modes (coordinates, sides, diagonals, angles), Calculates perimeter, area, diagonals, and angles, Auto-identifies shape type, Live interactive canvas with drag-and-drop functionality, Step-by-step solutions with formulas, Unit conversion built-in, Random shape generator for practice

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Formula Motion

[App page](https://appshunter.io/ios/app/formula-motion/id6769649267)

This app transforms abstract mathematical concepts into engaging visual animations. It helps users understand formulas, theorems, and patterns through step-by-step explanations and diagrams. Ideal for both quick learning on the go and deeper exploration on larger screens.

**Highlights:** Animated math formulas, Geometry theorem visualizations, Number pattern animations, Step-by-step explanations, Diagram-based reasoning, Key takeaways for math concepts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Quadrilateral Calculator free?

Quadrilateral Calculator costs $2.99, with no in-app purchases.

### Is Formula Motion free?

Formula Motion costs $0.99, with no in-app purchases.

### Do Quadrilateral Calculator or Formula Motion have ads?

Neither Quadrilateral Calculator nor Formula Motion shows ads.

### Which is updated more often, Quadrilateral Calculator or Formula Motion?

Quadrilateral Calculator ships an update every 23 months, and Formula Motion monthly. Most recently, Quadrilateral Calculator was updated on October 24, 2026 and Formula Motion on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*