Night Zookeeper vs DIYK9
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Night Zookeeper
This app makes reading and writing engaging for children aged 6-12 through interactive games, video lessons, and personalized feedback from tutors. It covers a full English language arts curriculum, boosting spelling, grammar, and confidence. Parents can track progress via a dashboard.
- Interactive mini-games
- Video lessons
- Skill challenges
- Tutor feedback on writing
- Parent progress dashboard
- Weekly writing competitions
- Collaborative writing opportunities
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The multi-award winning Night Zookeeper makes reading & writing fantastically fun and easy for 6-12 year olds. It’s trusted by thousands of parents around the world to improve their children’s spelling, grammar, reading & writing skills and really boost their confidence. The app has exciting mini games, video lessons, and skill challenges, created by educational experts and covering an entire english language arts curriculum. Children can play independently, and at their own pace, earning exciting and motivating rewards along the way. Tips from characters and inspiring prompts then help your child to write pieces of writing which our qualified tutors then read and give encouraging feedback on. This feedback can be viewed in your parent dashboard, where you can also track your child’s progress and achievements, and receive monthly printable resources. Alongside the thousands of learning activities and tutor feedback, a Night Zookeeper subscription provides your child with monthly awards, weekly writing competitions, and opportunities for collaborative writing in a safe, moderated environment. Night Zookeeper is: FUN: There are thousands of exciting and engaging activities for Grades 1 to 6. TRUSTED: An award winning program, used by thousands of families. Rated 4.7 on Trustpilot from 500+ reviews. COMPREHENSIVE: The program covers a full language arts curriculum of reading, writing, spelling, grammar & punctuation, that rewards children as they progress. SELF-PACED: Children can play independently and work through the program at their own pace. PERSONALIZED: Children get written feedback from our team of tutors on their pieces of writing- so you don't need to be the bad guy! SAFE: No in-app ads or purchases. TRACKABLE: A parent dashboard helps you to easily track your child's progress. OFFLINE & ONLINE: Free monthly printable resources are sent straight to your inbox. Users must log in with their account details to access Night Zookeeper. "There is nothing quite like Night Zookeeper, and I wish I had started them on it sooner!" Tim & Jennifer, parents "My kids were always frustrated with writing and reading, now they are excited each day and have started writing full stories." Justin, parent “My kids are loving this program and writing more than they ever have before. The game format and reward system holds their attention, and their creative juices keep flowing" Paul, parent Technical details: * Internet connection required Recommended: Latest iPad, Latest iPad Pro, Latest iPad Air, Latest iPad mini, Latest iOS Subscription options: The first 7 days of a subscription are free. Subscriptions renew automatically; your App Store account will be charged unless you cancel at least 24 hours before the end of the current period. Cancel anytime in your App Store account settings. Privacy Policy: https://www.nightzookeeper.com/privacy-policy Terms & Conditions: https://www.nightzookeeper.com/terms-and-conditions Start a FREE trial of Night Zookeeper today!
DIYK9
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.
- Access all videos in one app
- Receive push notifications
- Password-free video access
- Save favorite posts
- Track training progress
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Inside the DIYK9 app, you can: Access all of your videos in one easy to use app Receive push notifications with the latest news and updates Access to all of your videos without having to remember your password Save your favorite posts so you can quickly find them later END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: DIYK9 at none against Night Zookeeper's 10. 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 (621 vs 5). On price, ads, device support and iOS requirement 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. Night Zookeeper sells 10 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 621 ratings behind it against 5, 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 November 5, 2026 and November 4, 2026 respectively.
| Parameter | Night Zookeeper | DIYK9 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (621 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 78.1% of reviews | — |
| Number of ratings | 621 — better | 5 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 393 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Wonky Star | DIYK9 |
Customer experience
Night Zookeeper
DIYK9
Bugs and requests
Night Zookeeper
Reported bugs
3 issues- Freezing and crashing issues
- Upside-down screen when creating new characters
- Audio not working consistently
Requested features
3 requests- Dark mode option
- Compatibility improvements for older devices
- More content for older age groups
DIYK9
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Night Zookeeper
- NZK 1 Month - 1 License7 Days trial$14.991 Month
- 1 Month - 2 Licenses7 Days trial$17.991 Month
- NZK 1 Month - 3 Licenses7 Days trial$17.991 Month
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- 1 Month - 4 Licenses7 Days trial$21.991 Month
- 3 Months - 1 License7 Days trial$36.993 Months
- 3 Months - 2 Licenses7 Days trial$49.993 Months
- 3 Months - 3 Licenses7 Days trial$49.993 Months
- Yearly - 1 License7 Days trial$118.991 Year
- Yearly - 2 Licenses7 Days trial$154.991 Year
- Yearly - 3 Licenses7 Days trial$154.991 Year
DIYK9
No in-app purchases
Questions
Is Night Zookeeper free?
Is DIYK9 free?
Which has better reviews, Night Zookeeper or DIYK9?
Do Night Zookeeper or DIYK9 have ads?
Which is updated more often, Night Zookeeper or DIYK9?
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