PEEP Which Fish? vs Duostories
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PEEP Which Fish?
This educational game helps preschoolers develop pattern recognition skills by observing fish sequences and selecting the correct next fish. It features self-leveling difficulty to keep children engaged and learning within their comfort zone.
- Pattern recognition training
- Self-leveling difficulty
- Interactive fish sequences
- Preschool science curriculum
- Engaging characters
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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.
Duostories
Enhance language skills by reading interactive stories and answering comprehension questions. Access over 2,800 stories in more than 70 languages, covering a wide range of language types. This independent project offers an engaging alternative to traditional language drills.
- Read 2,800+ interactive stories
- Explore 70+ languages
- Practice comprehension with questions
- Discover diverse language types
- Learn through focused reading
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Read stories. Answer questions. Improve your language skills. Duostories helps you build reading comprehension through interactive stories and short in-story questions. Explore more than 2,800 stories in 70+ languages across 90 courses, and practice in a format that feels more engaging than drills alone. Read Duolingo stories in more languages with translations created by the Duostories community. Duostories uses Duolingo story content under license. It is an independent project and not an official Duolingo product. Features: - Read 2,800+ interactive stories - Explore 70+ languages across 90 courses - Practice comprehension with built-in questions in every story - Discover major, minority, endangered, and constructed languages - Learn through reading in a simple, focused format
Screenshots
Verdict
The clearest difference is rating: Duostories at 5.0 against PEEP Which Fish?'s 3.6. PEEP Which Fish?'s advantage is iOS requirement (4.3 vs 16.4). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Duostories holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 8 and 5 respectively.
| Parameter | PEEP Which Fish? | Duostories |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (8 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | 5 |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 4.3 — better | 16.4 |
| Further details — not scored | ||
| Size | 13 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | WGBH | Richard Gerum |
Customer experience
PEEP Which Fish?
Duostories
In-app purchases
PEEP Which Fish?
No in-app purchases
Duostories
No in-app purchases









