# Osmo Math Buzz vs Night Zookeeper

The clearest difference is review sentiment: Night Zookeeper at 82% against Osmo Math Buzz's 13%. Night Zookeeper also leads on rating (4.6 vs 3.0) and ratings volume (536 vs 143). Osmo Math Buzz's advantage is monetization model (free with in-app purchases vs subscription). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Osmo Math Buzz sells 2 one-off in-app purchases 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.

Night Zookeeper holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 143 and 536 respectively. Written reviews point the same way: 13% of Osmo Math Buzz's written reviews are positive against 82% of Night Zookeeper's.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on October 1, 2026.

## The numbers

| Metric | Osmo Math Buzz | Night Zookeeper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (143 ratings)](https://appshunter.io/ios/app/osmo-math-buzz/id1504177111/reviews) | **[4.6 (536 ratings)](https://appshunter.io/ios/app/night-zookeeper-fun-learning/id6504489937/reviews)** |
| Number of ratings | 143 | **536** |
| Positive reviews | 13.3% of reviews | **81.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 264 MB | 503 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Wonky Star](https://appshunter.io/developer/573502316) |

## What reviewers say

### Osmo Math Buzz

[App page](https://appshunter.io/ios/app/osmo-math-buzz/id1504177111)

Engage in collaborative math practice with up to four players, solving equations to overcome challenges and collect rewards. Designed for children aged 6-10, this app transforms screen time into hands-on learning through interactive play.

**Highlights:** Team-based math practice, Addition, subtraction, multiplication, Collaborative play, Hands-on learning system, Ages 6-10, Tangible play with digital learning

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day trial of Math Buzz | Free | one-time |
| Unlock Math Buzz | $24.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 💡 Teaches numbers and strategy
- 🤝 Good for multiplayer
- 💰 Nice price (for some)
- 🧠 Challenges children

**What reviewers complain about**

- 🐛 Freezes on startup
- 🐛 App won't load
- 🐛 Crashes mid-game
- 🐛 Progress lost on crash
- 🐛 Unreliable login

**Reported bugs**

- App freezes on Osmo logo
- App does not load
- App crashes during gameplay
- Lost progress after crashes
- Login issues and purchase restoration problems

**Requested features**

- Fix the app loading issue
- Improve app stability
- Make the game more engaging
- Provide clearer instructions
- Ensure progress is saved


### 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 Osmo Math Buzz free?

Osmo Math Buzz 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, Osmo Math Buzz or Night Zookeeper?

Night Zookeeper is rated higher. Osmo Math Buzz averages 3.0 out of 5 from 143 ratings, while Night Zookeeper averages 4.6 from 536 ratings.

### Do Osmo Math Buzz or Night Zookeeper have ads?

Neither Osmo Math Buzz nor Night Zookeeper shows ads.

### Which is updated more often, Osmo Math Buzz or Night Zookeeper?

Osmo Math Buzz ships an update every 2 months, and Night Zookeeper every 2 months. Most recently, Osmo Math Buzz was updated on October 1, 2026 and Night Zookeeper on October 1, 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.*