# Alfredo Backer vs Fast Quadratics

The clearest difference is price: Alfredo Backer at Free against Fast Quadratics's $0.99. Alfredo Backer also leads on update cadence (every 8 months vs every 21 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Alfredo Backer is free to download; Fast Quadratics costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Alfredo Backer ships an update every 8 months, Fast Quadratics every 21 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Alfredo Backer | Fast Quadratics |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fast-quadratics/id1467774143/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 21 months |
| Monetization | — | Paid |
| Size | 55 MB | 0 MB |
| Requires iOS | **16.0** | 16.1 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Externato Alfredo Backer Ltda](https://appshunter.io/developer/1535072495) | [John Bowman](https://appshunter.io/developer/1467774142) |

## What reviewers say

### Alfredo Backer

[App page](https://appshunter.io/ios/app/alfredo-backer/id1212354980)

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

**In-app purchases:** none


### Fast Quadratics

[App page](https://appshunter.io/ios/app/fast-quadratics/id1467774143)

Quickly solve quadratic equations, including those with complex numbers. This educational tool offers a straightforward way to find solutions for mathematical problems.

**Highlights:** Solves quadratic equations, Handles complex numbers, Rapid equation solving, Educational utility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alfredo Backer free?

Alfredo Backer is free to download, with no in-app purchases.

### Is Fast Quadratics free?

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

### Do Alfredo Backer or Fast Quadratics have ads?

Neither Alfredo Backer nor Fast Quadratics shows ads.

### Which is updated more often, Alfredo Backer or Fast Quadratics?

Alfredo Backer ships an update every 8 months, and Fast Quadratics every 21 months. Most recently, Alfredo Backer was updated on November 2, 2026 and Fast Quadratics on November 3, 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.*