# Polymath vs Night Zookeeper

The clearest difference is monetization model: Polymath at free with in-app purchases against Night Zookeeper's subscription. Polymath also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 83%). Night Zookeeper's advantage is ads (none vs shown) and ratings volume (592 vs 2). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Polymath sells 1 in-app purchase, starting at $4.99 per month and Night Zookeeper sells 12 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Polymath holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Night Zookeeper has 592 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Polymath's written reviews are positive against 83% of Night Zookeeper's.

Polymath ships an update every 4 months, Night Zookeeper every 2 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Polymath | Night Zookeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/polymath-fun-maths-learning/id1606244106/reviews)** | [4.6 (592 ratings)](https://appshunter.io/ios/app/night-zookeeper-fun-learning/id6504489937/reviews) |
| Number of ratings | 2 | **592** |
| Positive reviews | **100.0% of reviews** | 82.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 29 MB | 378 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celadon AI Limited](https://appshunter.io/developer/1560359367) | [Wonky Star](https://appshunter.io/developer/573502316) |

## What reviewers say

### Polymath

[App page](https://appshunter.io/ios/app/polymath-fun-maths-learning/id1606244106)

This app makes learning math fun for kids by allowing them to unlock worlds and interact with characters as they improve their skills. It offers personalized learning paths and weekly progress reports for parents.

**Highlights:** Personalized math learning algorithm, Unlockable game worlds, In-world character interaction, Weekly parent progress reports, Adaptive learning pace, Builds math confidence

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Polymath+1 | $4.99 | per month |


### Night Zookeeper

[App page](https://appshunter.io/ios/app/night-zookeeper-fun-learning/id6504489937)

This app makes reading and writing fun for children aged 6-12. It offers mini-games, video lessons, and skill challenges covering a full English language arts curriculum. Children receive personalized feedback from tutors and earn rewards, while parents can track progress.

**Highlights:** Interactive mini-games, Video lessons, Skill challenges, Tutor feedback on writing, Parent progress tracking, Motivating rewards, Collaborative writing opportunities

**Features:** macOS Compatibility

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NZK 1 Month - 1 License | $14.99 | per month |
| 1 Month - 2 Licenses | $17.99 | per month |
| NZK 1 Month - 3 Licenses | $17.99 | per month |
| 1 Month - 4 Licenses | $21.99 | per month |
| 3 Months - 1 License | $36.99 | per 3 months |
| 3 Months - 2 Licenses | $49.99 | per 3 months |
| 3 Months - 3 Licenses | $49.99 | per 3 months |
| Yearly - 1 License | $118.99 | per year |
| Yearly - 2 Licenses | $154.99 | per year |
| Yearly - 3 Licenses | $154.99 | per year |
| Yearly - 4 Licenses | $189.99 | per year |
| Yearly - 5 Licenses | $239.99 | per year |

**What reviewers like**

- 👍 Fun and engaging
- 🚀 Helps improve writing skills
- 💡 Gamifies learning
- 👍 Motivates reluctant writers
- 👍 Constructive feedback from tutors

**What reviewers complain about**

- 🐛 Glitchy and laggy performance
- 🐛 Inconsistent difficulty levels
- 🔋 Drains device battery
- 🔒 Questionable subscription practices

**Reported bugs**

- Freezing and crashing issues
- Upside-down screen when creating new characters
- Audio not working consistently

**Requested features**

- Dark mode option
- Compatibility improvements for older devices
- More content for older age groups


## Frequently asked questions

### Is Polymath free?

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

### Is Night Zookeeper free?

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

### Which has better reviews, Polymath or Night Zookeeper?

Polymath is rated higher. Polymath averages 5.0 out of 5 from 2 ratings, while Night Zookeeper averages 4.6 from 592 ratings.

### Do Polymath or Night Zookeeper have ads?

Polymath shows ads; Night Zookeeper does not.

### Which is updated more often, Polymath or Night Zookeeper?

Polymath ships an update every 4 months, and Night Zookeeper every 2 months. Most recently, Polymath was updated on October 16, 2026 and Night Zookeeper on October 20, 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.*