# Alfredo Backer vs Trojan Quick Math

The clearest difference is update cadence: Alfredo Backer at every 8 months against Trojan Quick Math's every 25 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Alfredo Backer ships an update every 8 months, Trojan Quick Math every 25 months. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Alfredo Backer | Trojan Quick Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/trojan-quick-math/id1294122118/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 25 months |
| Monetization | — | Free |
| Size | 55 MB | 2 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Externato Alfredo Backer Ltda](https://appshunter.io/developer/1535072495) | [Robby Blakemore](https://appshunter.io/developer/1293541886) |

## 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


### Trojan Quick Math

[App page](https://appshunter.io/ios/app/trojan-quick-math/id1294122118)

This app offers interactive math practice for addition, subtraction, multiplication, and division. Users can choose between practice and quiz modes, earn coins to customize avatars, and track their progress through levels. The app allows for personalized settings like disabling timers and resetting progress.

**Highlights:** Addition, subtraction, multiplication, division practice, Practice Mode with multiple choice, Quiz Mode with typed answers, Earn coins for level completion, Avatar customization, Progress tracking, Adjustable timers

**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 Trojan Quick Math free?

Trojan Quick Math is free to download, with no in-app purchases.

### Do Alfredo Backer or Trojan Quick Math have ads?

Neither Alfredo Backer nor Trojan Quick Math shows ads.

### Which is updated more often, Alfredo Backer or Trojan Quick Math?

Alfredo Backer ships an update every 8 months, and Trojan Quick Math every 25 months. Most recently, Alfredo Backer was updated on September 18, 2026 and Trojan Quick Math on June 1, 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.*