# Ducker Detective vs EZDateCalc

The clearest difference is in-app purchases: EZDateCalc at none against Ducker Detective's 10. Ducker Detective's advantage is update cadence (every 2 months vs every 27 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ducker Detective sells 10 in-app purchases, starting at $0.99 per month. EZDateCalc asks for nothing beyond the download.

Ducker Detective ships an update every 2 months, EZDateCalc every 27 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Ducker Detective | EZDateCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (24 ratings)](https://appshunter.io/ios/app/ducker-detective/id1555299893/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 27 months |
| Monetization | Free with in-app purchases | — |
| Size | 100 MB | 6 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ducker Detective, LLC](https://appshunter.io/developer/1555299895) | [FIL N GO Inc.](https://appshunter.io/developer/1642613361) |

## What reviewers say

### Ducker Detective

[App page](https://appshunter.io/ios/app/ducker-detective/id1555299893)

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.

**Highlights:** Calculate age from birth month and day, Verify ages, Predict baby birth dates, Play age-related jokes, Age verification tool

**Features:** Apple Wallet, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GIF subscription monthly | $0.99 | per month |
| Sticker subscription monthly | $0.99 | per month |
| StickerGIF subscription montly | $0.99 | per month |
| GIF subscription six month | $4.99 | per 6 months |
| Sticker subscription six month | $4.99 | per 6 months |
| StickerGIF Six-Month Plan | $4.99 | per 6 months |
| Ad-Free Subscription Yearly | $9.99 | per year |
| GIF subscription yearly | $9.99 | per year |
| Sticker subscription yearly | $9.99 | per year |
| StickerGIF subscription yearly | $9.99 | per year |


### EZDateCalc

[App page](https://appshunter.io/ios/app/ezdatecalc/id1643729409)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ducker Detective free?

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

### Is EZDateCalc free?

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

### Do Ducker Detective or EZDateCalc have ads?

Neither Ducker Detective nor EZDateCalc shows ads.

### Which is updated more often, Ducker Detective or EZDateCalc?

Ducker Detective ships an update every 2 months, and EZDateCalc every 27 months. Most recently, Ducker Detective was updated on November 7, 2026 and EZDateCalc on November 7, 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.*