# MarineTraffic vs Discover Kalama

The clearest difference is in-app purchases: Discover Kalama at none against MarineTraffic's 5. MarineTraffic's advantage is update cadence (every 10 days vs every 8 months) and ratings volume (65K vs 11). On price, rating, ads and device support there is nothing between them.

Both are free to download. MarineTraffic sells 5 in-app purchases, starting at $4.99 per month. Discover Kalama asks for nothing beyond the download.

Discover Kalama holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: MarineTraffic has 65K ratings behind it against 11, so its average is the more settled of the two.

MarineTraffic ships an update every 10 days, Discover Kalama every 8 months. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | MarineTraffic | Discover Kalama |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (65K ratings)](https://appshunter.io/ios/app/marinetraffic-ship-tracking/id563910324/reviews) | **[4.9 (11 ratings)](https://appshunter.io/ios/app/discover-kalama/id6754561321/reviews)** |
| Number of ratings | **65K** | 11 |
| Positive reviews | 49.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 8 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#19** | — |
| Size | 157 MB | 78 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MarineTraffic Applications LTD](https://appshunter.io/developer/1668374750) | [Port of Kalama](https://appshunter.io/developer/1848883272) |

## What reviewers say

### MarineTraffic

[App page](https://appshunter.io/ios/app/marinetraffic-ship-tracking/id563910324)

**Currently charting:** #19 Top Grossing · Travel (US App Store)

Track vessels live worldwide using AIS data. View ship positions, movements, and voyage history with detailed vessel information and enhanced weather monitoring. Unlock advanced features for deeper visibility and extended coverage with a Pro plan.

**Highlights:** Live vessel tracking worldwide, Ship positions and movements, Voyage history and key events, Detailed vessel information, Enhanced maps with weather monitoring, Fleet monitoring and alerts

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mobile Pro Plan | $4.99 | per month |
| Mobile Pro Plan | $29.99 | per year |
| Route Planner | $0.99 | one-time |
| Access Plus 24 | $0.99 | one-time |
| Augmented Reality | $2.99 | one-time |

**What reviewers like**

- 🚀 Accurate location tracking
- 👍 Useful for maritime enthusiasts
- 🔍 Provides detailed ship information
- 🌍 Good worldwide coverage
- 🙌 Helpful for monitoring loved ones at sea

**What reviewers complain about**

- 💰 Paywall for many features
- 🕰️ Delayed or outdated ship positions
- 🤔 Confusing interface and navigation
- 🔍 Limited free features
- 🔋 Drains device battery

**Reported bugs**

- Frequent crashes or freezes
- Inconsistent or unreliable ship data
- Difficulty canceling subscriptions
- Compatibility issues with newer devices

**Requested features**

- Real-time ship tracking
- Improved map and interface design
- More free features and data access
- Ability to track multiple ships simultaneously
- Integration with other maritime apps and services


### Discover Kalama

[App page](https://appshunter.io/ios/app/discover-kalama/id6754561321)

Plan your ideal vacation, trip, or weekend getaway in Kalama, Washington. Discover activities and attractions tailored to your interests, view local events, and build a custom itinerary. Share your plans with friends and family.

**Highlights:** Discover activities and attractions, View upcoming events, Create custom trip itineraries, Share plans with others

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

**In-app purchases:** none


## Frequently asked questions

### Is MarineTraffic free?

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

### Is Discover Kalama free?

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

### Which has better reviews, MarineTraffic or Discover Kalama?

Discover Kalama is rated higher. MarineTraffic averages 4.7 out of 5 from 65K ratings, while Discover Kalama averages 4.9 from 11 ratings.

### Do MarineTraffic or Discover Kalama have ads?

Neither MarineTraffic nor Discover Kalama shows ads.

### Which is updated more often, MarineTraffic or Discover Kalama?

MarineTraffic ships an update every 10 days, and Discover Kalama every 8 months. Most recently, MarineTraffic was updated on November 10, 2026 and Discover Kalama on November 5, 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.*