# GLOBE Observer vs EarthProject

The clearest difference is review sentiment: EarthProject at 60% against GLOBE Observer's 34%. EarthProject also leads on rating (3.4 vs 3.1) and update cadence (monthly vs every 2 months). GLOBE Observer's advantage is ratings volume (86 vs 5) and chart position (#206 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

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

EarthProject holds the better App Store score, 3.4 against 3.1. That said, the two scores are not equally well evidenced: GLOBE Observer has 86 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 34% of GLOBE Observer's written reviews are positive against 60% of EarthProject's.

GLOBE Observer ships an update every 2 months, EarthProject monthly. The most recent releases landed on September 29, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | GLOBE Observer | EarthProject |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (86 ratings)](https://appshunter.io/ios/app/globe-observer/id1090456751/reviews) | **[3.4 (5 ratings)](https://appshunter.io/ios/app/earthproject/id1580109940/reviews)** |
| Number of ratings | **86** | 5 |
| Positive reviews | 33.9% of reviews | **60.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Best chart rank | **#206** | — |
| Size | 5 MB | 70 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NASA](https://appshunter.io/developer/355542146) | [TAKE ACTION GLOBAL Inc](https://appshunter.io/developer/1580109942) |

## What reviewers say

### GLOBE Observer

[App page](https://appshunter.io/ios/app/globe-observer/id1090456751)

**Currently charting:** #206 Top Free · Education (US App Store)

Contribute to real scientific research by making environmental observations. Document clouds, mosquito habitats, land cover, and trees using your mobile device. Your data supports scientists worldwide, including NASA and NOAA.

**Highlights:** Make environmental observations, Document clouds, Map mosquito habitats, Record land cover, Measure tree height, Contribute to scientific research

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great for citizen science
- 💡 Educational and informative
- 👍 Easy to use (for some)
- 👍 Meaningful environmental measurements
- 👍 Fun and engaging

**What reviewers complain about**

- 🐛 App crashes frequently
- 🐛 Login/update issues
- 🐛 Account creation problems
- 🐛 Observations not submitting
- 🐛 Poor UI/UX design

**Reported bugs**

- Checking for updates loop
- 504 error on account creation
- Fails after step 5 in account creation
- Robot verification loop
- App crashes on opening

**Requested features**

- Improve UI/UX design
- Add dark mode
- Better translation
- Notifications for satellite flyovers
- Integrate with WorldView or Google Earth


### EarthProject

[App page](https://appshunter.io/ios/app/earthproject/id1580109940)

Learn and get motivated to reduce your carbon and plastic footprint. This educational app provides tools and encouragement for sustainable living.

**Highlights:** Learn waste reduction techniques, Motivation for sustainable living, Carbon footprint tracking, Plastic waste reduction guidance, Educational content

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

**In-app purchases:** none


## Frequently asked questions

### Is GLOBE Observer free?

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

### Is EarthProject free?

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

### Which has better reviews, GLOBE Observer or EarthProject?

EarthProject is rated higher. GLOBE Observer averages 3.1 out of 5 from 86 ratings, while EarthProject averages 3.4 from 5 ratings.

### Do GLOBE Observer or EarthProject have ads?

Neither GLOBE Observer nor EarthProject shows ads.

### Which is updated more often, GLOBE Observer or EarthProject?

GLOBE Observer ships an update every 2 months, and EarthProject monthly. Most recently, GLOBE Observer was updated on September 29, 2026 and EarthProject on September 30, 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.*