Ducker Detective vs Zebra.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ducker Detective
Easily calculate anyone's age using their birth month and day. This tool can help you verify ages, play harmless pranks, or even predict baby birth dates based on due dates.
- Calculate age from birth month and day
- Verify ages
- Predict baby birth dates
- Play age-related jokes
- Age verification tool
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Do you want to find out people’s age with just the month and day of birth or want to calculate someone’s age using the built-in Age Calculator.You can find out your favorite celebrity or friends’ age also. Check when people are lying about their age. Ducker Detective is a great tool to have. Play a joke on someone and ask them for their month and day of birth and surprise them with their age or with the year they were born. Even more, do you want to predict a baby’s birth based on the doctor's expected birth to get a more accurate prediction.
Zebra.
Never forget important dates like birthdays and anniversaries again. This app helps you track special moments with smart reminders and personalized message options. It offers visual celebrations and ensures your contact data remains private and secure.
- Event tracking for birthdays and anniversaries
- Smart, timely event notifications
- Customizable message templates with emojis/images
- Easy contact syncing
- Visual celebration animations
- Privacy-focused contact management
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Zebra: Your Personal Event Reminder App Never forget a momentous occasion again! Zebra keeps all your special moments organized so you can stay connected with the people you care about. Key Features: Event Tracking Made Simple: Effortlessly track birthdays, anniversaries, and custom milestones with Zebra's clean and intuitive interface. Smart Reminders: Get timely notifications for upcoming events to ensure you're always prepared. We've got you covered from a month before to the day of! Personalized Messages: Send heartfelt wishes with our custom message templates, or create your own! Add emojis, funny notes, or even images to make your message memorable. Contact Syncing: Import contacts easily and instantly add important dates while ensuring your data stays private and secure. Visual Celebrations: Celebrate your loved ones' special days with interactive confetti, animations, and more! Your Data, Your Control: Zebra prioritizes your privacy with secure, transparent contact management. Keep track of life's precious moments and make every celebration unforgettable. Download Zebra today and never miss a special day again!
Screenshots
Verdict
The clearest difference is in-app purchases: Zebra. at none against Ducker Detective's 11. Zebra. also leads on update cadence (every 4 days vs every 2 months) and rating (5.0 vs 4.8). Ducker Detective's advantage is ratings volume (24 vs 1) and device support (3 vs 1). On price, review sentiment and ads 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. Ducker Detective sells 11 in-app purchases, starting at $0.99 per month. Zebra. asks for nothing beyond the download.
Zebra. holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Ducker Detective has 24 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Ducker Detective ships an update every 2 months, Zebra. every 4 days. Both last shipped on October 24, 2026.
| Parameter | Ducker Detective | Zebra. |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (24 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 24 — better | 1 |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 100 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Ducker Detective, LLC | Shevat Ventures llc |
Customer experience
Ducker Detective
Zebra.
In-app purchases
Ducker Detective
- Ad-Free Subscription Monthly$0.991 Month
- GIF subscription monthly$0.991 Month
- Sticker subscription monthly$0.991 Month
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- StickerGIF subscription montly$0.991 Month
- GIF subscription six month$4.996 Months
- Sticker subscription six month$4.996 Months
- StickerGIF Six-Month Plan$4.996 Months
- Ad-Free Subscription Yearly$9.991 Year
- GIF subscription yearly$9.991 Year
- Sticker subscription yearly$9.991 Year
- StickerGIF subscription yearly$9.991 Year
Zebra.
No in-app purchases
Questions
Is Ducker Detective free?
Is Zebra. free?
Which has better reviews, Ducker Detective or Zebra.?
Do Ducker Detective or Zebra. have ads?
Which is updated more often, Ducker Detective or Zebra.?
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