GLOBE Observer vs iTrees App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GLOBE Observer
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.
- Make environmental observations
- Document clouds
- Map mosquito habitats
- Record land cover
- Measure tree height
- Contribute to scientific research
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The GLOBE Observer app enables you to make observations of your environment. GLOBE Observer is the app of the Global Learning and Observations to Benefit the Environment (GLOBE) Program. The GLOBE Program is an international science and education program that provides students and people of all ages worldwide with the opportunity to participate in data collection and the scientific process, and contribute meaningfully to our understanding of the Earth system and global environment. By using the GLOBE Observer app, you contribute scientific data to your community, students and scientists worldwide, including researchers at NASA, NOAA, and other science research institutions. GLOBE Observer allows all users to contribute observations of clouds, mosquito habitats, land cover, and trees. Trained and certified users can also use the app to submit additional environmental measurements from all GLOBE protocols. GLOBE Clouds allows observers to make regular observations of Earth’s cloud cover and compare them to satellite observations. With GLOBE Mosquito Habitat Mapper, users locate mosquito habitats, observe and identify mosquito larvae, and reduce the potential threat of mosquito borne disease. GLOBE Land Cover is designed to allow users to document what is on the land (trees, grass, buildings, etc.). GLOBE Trees asks users to estimate a tree’s height by taking pictures of trees with their device and answering a few questions. Additional capabilities may be added. Visit us at https://www.globe.gov and https://observer.globe.gov.
iTrees App
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A product of Ladybird Environmental Consulting (LEC) is a series of nature based Mobile apps developed to promote nature study widely across the Indian Cities. This tree mobile app covers 50 common tree species found in metros such as Mumbai, Kolkata, New Delhi and Hyderabad. The app has been developed to study climate change impact on urban biodiversity in Indian metros. Trees being indicator species, a seasonal variation in their leaf fall, flowering or fruiting will provide indication whether climate change is affecting Indian trees. These mobile apps are being developed under the U.S. State Department's International Exchange Alumni programme- Alumni Innovation Engagement Fund's Project- Mobile Apps 4 Climate Change. Dr. V.Shubhalaxmi has been the sole winner from India who won the global competition wherein 1000 proposals were submitted and only 53 finalists were chosen world over. She alongwith her four team members; Dr. Swayamprabha Das, Dr. Ashutosh Richarriya, Dr. Anirban Gupta and Mr. Isaac Kehimkar have launched student citizen science programme in 10 schools of New Delhi, Hyderabad, Kolkatta and Mumbai. For this endeavour, they have partnered with WWF-India and Greenline.To learn more about this initiative visit our project website www.inaturewatch.org The app is targeted towards young students who have taken fancy to gadgets such as smartphones and tablets. The idea is to engage students by use of technology and assist them in their project work which could involve documentation of local flora. This app is also a tool for environmental educators specially teachers who sometimes do not have access to natural history resources or persons. The app brings tree identification to finger tips of its users thus providing an alternate tool besides an expert or field guide. The app describes 50 species of trees along with their pictures of leaf fruit, bark, common English and Latin name, height, geographical range, details about leaves, flowers, fruits, uses and associations. The language has been kept non-technical however incase of unavoidable technical words, a glossary if provided to explain these terms.Once you download this app either on your iPhone or iPad, please keep updating your app as we will be improvising and rectifying some of the technical and information errors. In case you come across a tree which is not available in this app, we have provided list of books and online resources wherein you could get your tree identified. Happy Treewatching! This app is a brainchild of Dr.V.Shubhalaxmi so saw the gap between learner and educator, plus apathy towards environment by urban people. Having worked for BNHS for 21 years, she left to start her own social enterprise- Ladybird Environmental Consulting . Her company specializes in environmental CSR. To learn more visit her website www.ladybirdconsulting.co.in. This app is a hard work of 37 people who worked on it besides the principal content developers; Mr. Isaac Kehimkar and Dr. V.Shubhalaxmi, the creative team of LycodonFx did an excellent job of converting our dream idea into a reality. In the domain of environment there are very few vendors who are equipped with natural history know how and product execution. In this regard LycodonFx is highly recommended to all those who wish to develop new environmental products. Visit their website www.lycodonfx.com and see for yourself. Copyright (C) 2015. All rights reserved with Ladybird Environmental Consulting. Any reproduction of any part of the mobile apps in print/electronic without appropriate permission is not allowed. Citation Vaylure, Shubhalaxmi, Isaac Kehimkar (Eds), Sameer Kehimkar, Alisha Kehimkar, Amit Kehimkar (2014), Mobile Apps for Climate Change (v.1.0 iTrees)- U.S. State Department's Alumni Innovation Engagement Fund, Ladybird Environmental Consulting, Mumbai.
Screenshots
Verdict
The clearest difference is update cadence: GLOBE Observer at every 2 months against iTrees App's every 16 months. GLOBE Observer also leads on chart position (#206 vs unranked). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GLOBE Observer ships an update every 2 months, iTrees App every 16 months. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.
| Parameter | GLOBE Observer | iTrees App |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (86 ratings) — better | — |
| Positive reviews | 33.9% of reviews | — |
| Number of ratings | 86 — better | — |
| Update frequency | Every 2 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Best chart rank | #206 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 13.4 |
| Further details — not scored | ||
| Size | 5 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | NASA | LadyBird Environmental Consulting LLP |
Bugs and requests
GLOBE Observer
Reported bugs
39 issues- Checking for updates loop
- 504 error on account creation
- Fails after step 5 in account creation
- Robot verification loop
- App crashes on opening
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- Observations not submitting (error exclamation mark)
- Interminable in-app required update
- Errors in data entry, observations not sending/deleting
- Invalid password errors
- Cloud observation chart images disappear
- No reply from support
- App doesn't open on iPhone
- Won't update
- Logged out, wrong password, account locked
- Data lost after system crash
- Cloud ID chart not loading properly
- Observations keep loading forever
- iPhone stuck on installing updates
- App crashes and never fully loads
- Can't get photos to upload
- User interface poorly designed
- No observations shown when there are
- No way to export data
- App is forever 'installing updates'
- Camera portion of data collection quit working
- No way to submit a report from 'Pictures'
- Compass won't calibrate
- Photo feature locks screen
- No button to take photo
- App crashes if location is not set
- Updates take too long
- Photo submission portal hopeless
- Native camera app has no prompts to submit photos
- 'Done' button does nothing
- 401 unknown error when sending reports
- App goes bonkers when attaching photo
- Screen flickers rapidly when attaching photo
- Cannot get out of camera within app
- Whirring wheel for update in progress for hours
Requested features
8 requests- Improve UI/UX design
- Add dark mode
- Better translation
- Notifications for satellite flyovers
- Integrate with WorldView or Google Earth
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- More explanation/examples for cloud types
- Export data in spreadsheet/GPS format
- Allow users to contribute design improvements
iTrees App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GLOBE Observer
No in-app purchases
iTrees App
No in-app purchases









