# AGU Events vs MARCO Ocean Data

The clearest difference is rating: MARCO Ocean Data at 5.0 against AGU Events's 4.4. MARCO Ocean Data also leads on update cadence (every 3 weeks vs every 5 months) and monetization model (free vs free with in-app purchases). AGU Events's advantage is ratings volume (553 vs 8) and device support (3 vs 1). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MARCO Ocean Data holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: AGU Events has 553 ratings behind it against 8, so its average is the more settled of the two.

AGU Events ships an update every 5 months, MARCO Ocean Data every 3 weeks. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | AGU Events | MARCO Ocean Data |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (553 ratings)](https://appshunter.io/ios/app/agu-events/id1303525553/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/marco-ocean-data/id6737808561/reviews)** |
| Number of ratings | **553** | 8 |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 50 MB | 114 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [American Geophysical Union (AGU)](https://appshunter.io/developer/476096201) | [Monmouth University](https://appshunter.io/developer/508508233) |

## What reviewers say

### AGU Events

[App page](https://appshunter.io/ios/app/agu-events/id1303525553)

Navigate AGU-managed meetings and events with this app. Download event programs, build your personal schedule, search sessions and exhibitors, and connect with other attendees. Access content offline once downloaded.

**Highlights:** Download individual meeting programs, Create or synchronize meeting schedule, Browse and search program content, Bookmark sessions and speakers, Attendee-to-attendee messaging, Exhibitor search and location, Offline access to program and schedule

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

**In-app purchases:** none

**What reviewers like**

- 👍 App exists and is useful
- 👍 Map feature appreciated
- 👍 Reminders helpful
- 👍 Ability to add own entries
- 👍 Easy to separate and find sessions/talks

**What reviewers complain about**

- 🐛 Passwords always bugged
- 🐛 App doesn't open
- 🐛 Cannot sync schedule
- 🐛 Slow and painful performance
- 🐛 Too many interruptions

**Reported bugs**

- Passwords bugged
- App won't open
- Sync issues
- App stuck in past event
- Unable to load conferences

**Requested features**

- Option for lighter app (session/talk listing only)
- User-determined updates
- Import outlook calendar entries
- Option to download more data to phone
- Presenter name visible in session listing


### MARCO Ocean Data

[App page](https://appshunter.io/ios/app/marco-ocean-data/id6737808561)

Access and explore thousands of ocean resource maps with detailed layer information. Customize your map view, search for specific data, and save your favorite layers for quick access. This mobile version mirrors the functionality of a desktop GIS web application.

**Highlights:** Interactive map with active layers, Layer customization (opacity, visibility, order), Tap to view feature information, Search and browse thousands of data layers, Layer preview with source and metadata, Save favorite layers, Bookmark navigation bar pages

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AGU Events free?

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

### Is MARCO Ocean Data free?

MARCO Ocean Data is free to download, with no in-app purchases.

### Which has better reviews, AGU Events or MARCO Ocean Data?

MARCO Ocean Data is rated higher. AGU Events averages 4.4 out of 5 from 553 ratings, while MARCO Ocean Data averages 5.0 from 8 ratings.

### Do AGU Events or MARCO Ocean Data have ads?

Neither AGU Events nor MARCO Ocean Data shows ads.

### Which is updated more often, AGU Events or MARCO Ocean Data?

AGU Events ships an update every 5 months, and MARCO Ocean Data every 3 weeks. Most recently, AGU Events was updated on November 11, 2026 and MARCO Ocean Data on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*