# Alphabet vs StroopEffect2

The clearest difference is update cadence: Alphabet at every 5 months against StroopEffect2's every 14 months. Alphabet also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Alphabet costs $2.99 and StroopEffect2 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Alphabet ships an update every 5 months, StroopEffect2 every 14 months. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Alphabet | StroopEffect2 |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alphabet-book/id858444087/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 14 months |
| Monetization | Paid | Paid |
| Size | 213 MB | 2 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jessica Tunnicliffe](https://appshunter.io/developer/573370798) | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) |

## What reviewers say

### Alphabet

[App page](https://appshunter.io/ios/app/alphabet-book/id858444087)

This app makes learning the alphabet fun and engaging through interactive animations, sounds, and games. It helps children master letter names, shapes, and sounds, paving the way for reading proficiency. Features include letter writing practice, audio pronunciations, and coloring activities.

**Highlights:** Interactive letter animations, Audio pronunciations and phonics, Letter writing and cursive practice, Object and animal association, Coloring and sticker activities, Fruit and cat learning modules

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

**In-app purchases:** none


### StroopEffect2

[App page](https://appshunter.io/ios/app/stroopeffect2/id1050388935)

This app demonstrates the psychological phenomenon known as the Stroop effect. It presents a time-trial game where users must identify the color of words, even when the word itself names a different color. It's a fun way to explore cognitive processing and reaction times.

**Highlights:** Stroop effect demonstration, Time trial game mode, Cognitive processing experiment, Reaction time measurement, Educational psychology tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Alphabet free?

Alphabet costs $2.99, with no in-app purchases.

### Is StroopEffect2 free?

StroopEffect2 costs $2.99, with no in-app purchases.

### Do Alphabet or StroopEffect2 have ads?

Neither Alphabet nor StroopEffect2 shows ads.

### Which is updated more often, Alphabet or StroopEffect2?

Alphabet ships an update every 5 months, and StroopEffect2 every 14 months. Most recently, Alphabet was updated on October 13, 2026 and StroopEffect2 on October 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.*