# Alphabet vs Learn Underwater

The clearest difference is price: Learn Underwater at Free against Alphabet's $2.99. Learn Underwater also leads on iOS requirement (11.0 vs 15.6). Alphabet's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Learn Underwater is free to download; Alphabet costs $2.99 up front. Learn Underwater sells 1 one-off in-app purchase. Alphabet asks for nothing beyond the download.

Alphabet ships an update every 5 months, Learn Underwater every 3 months. The most recent releases landed on November 1, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Alphabet | Learn Underwater |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alphabet-book/id858444087/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | Paid | — |
| Size | 213 MB | 21 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jessica Tunnicliffe](https://appshunter.io/developer/573370798) | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) |

## What reviewers say

### Alphabet

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

This app makes learning the alphabet fun and engaging for young children. It uses animations, interactive exercises, and audio to teach letter names, shapes, and sounds, helping children develop early reading skills.

**Highlights:** Interactive letter learning, Audio pronunciation, Letter writing practice, Phonics and word sounds, Animation and games, Coloring and sticker activities

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

**In-app purchases:** none


### Learn Underwater

[App page](https://appshunter.io/ios/app/learn-underwater/id987875032)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ad | $0.99 | one-time |


## Frequently asked questions

### Is Alphabet free?

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

### Is Learn Underwater free?

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

### Do Alphabet or Learn Underwater have ads?

Neither Alphabet nor Learn Underwater shows ads.

### Which is updated more often, Alphabet or Learn Underwater?

Alphabet ships an update every 5 months, and Learn Underwater every 3 months. Most recently, Alphabet was updated on November 1, 2026 and Learn Underwater on October 26, 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.*