# Fast Equation Plus vs Quadratic Equation AI Solver

The clearest difference is price: Quadratic Equation AI Solver at Free against Fast Equation Plus's $0.99. Quadratic Equation AI Solver also leads on update cadence (every 2 months vs every 6 months). Fast Equation Plus's advantage is in-app purchases (none vs 2) and ads (none vs shown). On iOS requirement there is nothing between them.

Quadratic Equation AI Solver is free to download; Fast Equation Plus costs $0.99 up front. Quadratic Equation AI Solver sells 2 in-app purchases, starting at $4.99 per 7 days. Fast Equation Plus asks for nothing beyond the download.

Fast Equation Plus ships an update every 6 months, Quadratic Equation AI Solver every 2 months. The most recent releases landed on September 30, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Fast Equation Plus | Quadratic Equation AI Solver |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quadratic-equation-ai-solver/id6744992645/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 120 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [a Rausa](https://appshunter.io/developer/638439637) | [Juan Antonio Veloz Gutierrez](https://appshunter.io/developer/1810351183) |

## What reviewers say

### Fast Equation Plus

[App page](https://appshunter.io/ios/app/fast-equation-plus/id887161077)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### Quadratic Equation AI Solver

[App page](https://appshunter.io/ios/app/quadratic-equation-ai-solver/id6744992645)

This app instantly solves quadratic equations with detailed, step-by-step solutions. It offers AI-powered explanations to help users understand the underlying mathematical concepts and a dark mode for comfortable viewing.

**Highlights:** Instant quadratic equation solutions, AI-powered explanations, Detailed step-by-step guidance, Handles complex and real roots, Supports decimal and negative inputs, Dark mode for comfortable viewing

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Quadratic Calculator Weekly | $4.99 | per 7 days |
| PRO Quadratic Calculator Yearly | $24.99 | per year |


## Frequently asked questions

### Is Fast Equation Plus free?

Fast Equation Plus costs $0.99, with no in-app purchases.

### Is Quadratic Equation AI Solver free?

Quadratic Equation AI Solver is free to download, with in-app purchases available.

### Do Fast Equation Plus or Quadratic Equation AI Solver have ads?

Quadratic Equation AI Solver shows ads; Fast Equation Plus does not.

### Which is updated more often, Fast Equation Plus or Quadratic Equation AI Solver?

Fast Equation Plus ships an update every 6 months, and Quadratic Equation AI Solver every 2 months. Most recently, Fast Equation Plus was updated on September 30, 2026 and Quadratic Equation AI Solver on October 22, 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.*