# Night Zookeeper vs DIYK9

The clearest difference is in-app purchases: DIYK9 at none against Night Zookeeper's 12. DIYK9 also leads on rating (5.0 vs 4.6) and update cadence (fortnightly vs every 2 months). Night Zookeeper's advantage is ratings volume (536 vs 4) and iOS requirement (13.0 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Night Zookeeper sells 12 in-app purchases, starting at $14.99 per month. DIYK9 asks for nothing beyond the download.

DIYK9 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Night Zookeeper has 536 ratings behind it against 4, so its average is the more settled of the two.

Night Zookeeper ships an update every 2 months, DIYK9 fortnightly. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Night Zookeeper | DIYK9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (536 ratings)](https://appshunter.io/ios/app/night-zookeeper-fun-learning/id6504489937/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/diyk9/id6743503490/reviews)** |
| Number of ratings | **536** | 4 |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Subscription | **Free** |
| Size | 503 MB | 49 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wonky Star](https://appshunter.io/developer/573502316) | [DIYK9](https://appshunter.io/developer/1803242363) |

## What reviewers say

### 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


### DIYK9

[App page](https://appshunter.io/ios/app/diyk9/id6743503490)

Access all your training videos in one convenient app. Receive updates and save your favorites for quick retrieval. Enjoy a seamless experience without needing to remember passwords.

**Highlights:** Access all videos in one app, Receive push notifications, Password-free video access, Save favorite posts, Track training progress

**In-app purchases:** none


## Frequently asked questions

### Is Night Zookeeper free?

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

### Is DIYK9 free?

DIYK9 is free to download, with no in-app purchases.

### Which has better reviews, Night Zookeeper or DIYK9?

DIYK9 is rated higher. Night Zookeeper averages 4.6 out of 5 from 536 ratings, while DIYK9 averages 5.0 from 4 ratings.

### Do Night Zookeeper or DIYK9 have ads?

Neither Night Zookeeper nor DIYK9 shows ads.

### Which is updated more often, Night Zookeeper or DIYK9?

Night Zookeeper ships an update every 2 months, and DIYK9 fortnightly. Most recently, Night Zookeeper was updated on September 23, 2026 and DIYK9 on September 24, 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.*