# Reddu vs Greatest Common Divisor Solver

Reddu and Greatest Common Divisor Solver are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Reddu sells 3 in-app purchases, starting at $39.99 per month and Greatest Common Divisor Solver sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Reddu | Greatest Common Divisor Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/reddu/id6473049247/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 59 MB | 179 MB |
| Requires iOS | **14.0.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Nubo Learning](https://appshunter.io/developer/1876891375) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Reddu

[App page](https://appshunter.io/ios/app/reddu/id6473049247)

This app uses science-based games and AI to improve reading, writing, and memory skills for individuals with dyslexia. It offers personalized exercises to strengthen phonological awareness, reading speed, and sustained attention, aiming to boost academic performance for users aged 12 and up.

**Highlights:** Science-based games for literacy and memory, AI-driven personalized content adaptation, Improves phonological awareness, Enhances reading speed and comprehension, Boosts working memory and sustained attention, Gamified learning approach

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mensual | $39.99 | per month |
| Trimestral | $79.99 | per 3 months |
| Anual | $199.99 | per year |


### Greatest Common Divisor Solver

[App page](https://appshunter.io/ios/app/greatest-common-divisor-solver/id6802801196)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is Reddu free?

Reddu is free to download, with in-app purchases available.

### Is Greatest Common Divisor Solver free?

Greatest Common Divisor Solver is free to download, with in-app purchases available.

### Do Reddu or Greatest Common Divisor Solver have ads?

Neither Reddu nor Greatest Common Divisor Solver shows ads.

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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.*