# Duck Passport™ vs Ship Tracker

The clearest difference is rating: Ship Tracker at 4.6 against Duck Passport™'s 3.7. Ship Tracker also leads on update cadence (fortnightly vs every 6 months) and ratings volume (1.9K vs 3). Duck Passport™'s advantage is in-app purchases (none vs 4). On price, ads and device support there is nothing between them.

Both are free to download. Ship Tracker sells 4 in-app purchases, starting at $3.99 per 7 days. Duck Passport™ asks for nothing beyond the download.

Ship Tracker holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: Ship Tracker has 1.9K ratings behind it against 3, so its average is the more settled of the two.

Duck Passport™ ships an update every 6 months, Ship Tracker fortnightly. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Duck Passport™ | Ship Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/duck-passport/id1623906896/reviews) | **[4.6 (1.9K ratings)](https://appshunter.io/ios/app/ship-tracker/id6471243761/reviews)** |
| Number of ratings | 3 | **1.9K** |
| Positive reviews | — | 24.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Best chart rank | — | **#139** |
| Size | 129 MB | 68 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Liftoff Technologies LLC](https://appshunter.io/developer/1518416996) | [Rocketech sp. z o.o.](https://appshunter.io/developer/1764757195) |

## What reviewers say

### Duck Passport™

[App page](https://appshunter.io/ios/app/duck-passport/id1623906896)

This app helps you track and manage 'cruising ducks' as they travel between ships and ports. Scan unique IDs, record sightings, and build a collection of duck journeys. It's a fun way to add adventure to your cruise experience.

**Highlights:** Scan DuckID QR codes, Track owned and found ducks, View duck travel history, Add photos and journal entries, Register ducks and create DuckIDs, Unlock achievements and badges, Manage Trading Posts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ship Tracker

[App page](https://appshunter.io/ios/app/ship-tracker/id6471243761)

**Currently charting:** #139 Top Grossing · Travel (US App Store)

Track ships live on the ocean, view their routes, destinations, and arrival times. Access detailed port information and manage your own fleet. Ideal for maritime enthusiasts, professionals, and travelers.

**Highlights:** Real-time vessel monitoring, Expected arrivals, Port details, Customizable fleet management, User-friendly search

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access | $3.99 | per 7 days |
| Unlimited Access | $7.99 | per month |
| Unlimited Access | $17.99 | per year |
| Unlimited Access | $34.99 | per year |

**What reviewers like**

- 👍 Great app
- 🚀 Excellent tool
- 👍 Accurate app
- 👍 Helpful app

**What reviewers complain about**

- 🐛 Glitchy app
- 🐛 Outdated information
- 🐛 Doesn't work properly
- 🔒 Forced subscription
- 🐛 Unreliable tracking

**Reported bugs**

- Ads not working
- Crashes frequently
- Tracking issues
- Incorrect vessel locations

**Requested features**

- Free vessel pictures
- Ability to set location
- Improve search functionality
- Better open sea tracking


## Frequently asked questions

### Is Duck Passport™ free?

Duck Passport™ is free to download, with no in-app purchases.

### Is Ship Tracker free?

Ship Tracker is free to download, with in-app purchases available.

### Which has better reviews, Duck Passport™ or Ship Tracker?

Ship Tracker is rated higher. Duck Passport™ averages 3.7 out of 5 from 3 ratings, while Ship Tracker averages 4.6 from 1.9K ratings.

### Do Duck Passport™ or Ship Tracker have ads?

Both Duck Passport™ and Ship Tracker show ads.

### Which is updated more often, Duck Passport™ or Ship Tracker?

Duck Passport™ ships an update every 6 months, and Ship Tracker fortnightly. Most recently, Duck Passport™ was updated on October 25, 2026 and Ship Tracker on October 27, 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.*