# PEEP Which Fish?

> Preschool game for pattern recognition with self-adjusting difficulty. (iPhone/iPad app by WGBH.)

- Source: https://appshunter.io/ios/app/peep-which-fish/id756905408 (this page in markdown: same URL + `.md`)
- Developer: [WGBH](https://appshunter.io/developer/324170330)
- Category: Education, Games
- Price: Free
- Rating: 3.60/5 from 8 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 4.3 · 13 MB
- Languages: American English, Czech, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Polish, European Portuguese and 6 more
- Released: 2013-11-26
- Data updated: 2026-06-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/peep-which-fish/id756905408/reviews.md

## What is PEEP Which Fish??

Eight fish swim gently in a line. In this Which Fish app, kids must observe the pattern the fish form and select which fish, from a choice of three, to assign to the rightmost position. If they are correct, Quack will respond and a new set of fish will appear.

The Which Fish app was designed to teach kids about pattern recognition through self-leveling. If players answer a round without error, they are offered a harder level in the next round. If they do make an error on the way to success, they remain at the same difficulty level for the next round.In this way, the games keep kids within their own comfort levels, nudging them to more challenging levels only if they are ready.

The PEEP and the Big Wide World Which Fish? app was produced by WGBH and the producers of PEEP and the Big Wide World. The animated series PEEP and the Big Wide World gives wings to the innovative idea of teaching science to preschoolers. Wry and distinctive visual humor, charming plotlines, and lovable characters combine with a comprehensive science curriculum to attract and engage kids three to five years old.

For more exciting PEEP and the Big Wide World content, visit http://www.peepandthebigwideworld.com.

## Key features

- Pattern recognition training
- Self-leveling difficulty
- Interactive fish sequences
- Preschool science curriculum
- Engaging characters

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/peep-which-fish/id756905408/reviews.md

### 4/5 — Awesome app

*2014-01-05*

I love it its fun and you get to make patterns. Great game for 3-6 year olds.

## Frequently asked questions about PEEP Which Fish?

### What is the learning methodology of PEEP Which Fish?

PEEP Which Fish uses a self-leveling approach to teach pattern recognition. The game adjusts difficulty based on the child's performance, offering harder levels for correct answers and maintaining the current level for errors.

### How does PEEP Which Fish track progress?

The app tracks progress by adjusting the difficulty level. If a child answers correctly, they advance to a harder level. If they make a mistake, they remain at the same difficulty, ensuring they stay within their learning comfort zone.

### Is PEEP Which Fish suitable for children?

Yes, PEEP Which Fish is designed for children aged 4 and up. It aligns with the "PEEP and the Big Wide World" animated series, which focuses on teaching science concepts to preschoolers.

### What devices support PEEP Which Fish?

PEEP Which Fish is available on iPhone, iPad, and iPod. It is designed for mobile and tablet use.

### When was PEEP Which Fish last updated?

PEEP Which Fish was last updated on November 26, 2013, with version 0.1. The app was initially released on the same date.

### Does PEEP Which Fish have ads?

No, PEEP Which Fish does not contain advertisements. The app is completely free and ad-free, providing an uninterrupted learning experience.

### What do users think of PEEP Which Fish?

PEEP Which Fish has a rating of 3.6 stars from 8 ratings. User feedback suggests it is a functional educational tool for its target age group.

### Can PEEP Which Fish be played offline?

The provided information does not specify offline play capabilities. However, as an educational game focused on pattern recognition, it is likely designed to be playable without a constant internet connection.

## Version history (last 1 release)

### 0.1 — 2013-11-26

No release notes.

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## More apps by WGBH

- [Monkey Match](https://appshunter.io/ios/app/monkey-match/id407251250)
- [PEEP and the Big Wide World Hide and Peep](https://appshunter.io/ios/app/peep-and-the-big-wide-world-hide-and-peep/id536312346)
- [PEEP and the Big Wide World House Hunt](https://appshunter.io/ios/app/peep-and-the-big-wide-world-house-hunt/id536554271)
- [PEEP and the Big Wide World Paint Splat](https://appshunter.io/ios/app/peep-and-the-big-wide-world-paint-splat/id536621786)
- [PEEP and the Big Wide World Quack’s Apples](https://appshunter.io/ios/app/peep-and-the-big-wide-world-quacks-apples/id536623428)
- [PEEP and the Big Wide World Sounds Like Fun!](https://appshunter.io/ios/app/peep-and-the-big-wide-world-sounds-like-fun/id536623915)

All apps by WGBH: https://appshunter.io/developer/324170330

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*