mPing vs GLOBE Observer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mPing
Become a citizen scientist and help researchers study severe weather by reporting precipitation types. Your observations contribute to improving weather detection algorithms and understanding precipitation patterns.
- Report precipitation types
- Contribute to weather research
- Track winter precipitation
- Report hail size
- Provide ground-truth data
- View radar data comparison
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The NOAA National Severe Storms Laboratory and The University of Oklahoma's Cooperative Institute for Mesoscale Meteorological Studies needs your help with severe weather research! The Meteorological Phenomena Identification Near the Ground project (mPING) needs you, the Citizen Scientist, to watch and report on precipitation. mPING is looking for volunteers of all ages and backgrounds to make observations - teachers, classes, families, everyone, and anyone! This app is your portal for providing observations to researchers at NSSL. Your reports will help them develop and refine algorithms that use the newly upgraded dual-polarization NEXRAD radars to detect and report on the type of precipitation that you see falling. To do a good job, we need tens of thousands of observations from all over the US. We can succeed only with your help. mPING volunteer observers can spend as much time as they want, from a little to a lot, making observations. The basic idea is simple: NSSL will collect radar data from NEXRAD radars in your area along with sounding data from our models during storm events, and use your data to develop and validate new and better algorithms. We have two focus areas: winter precipitation types, such as rain, freezing rain, drizzle, freezing drizzle, snow, graupel, ice pellets, mixed rain and snow, mixed ice pellets and snow and even observations of “none” when the precipitation has stopped, even if only briefly. Why? Because the radars cannot see close to the ground at far distances and because automated surface sensors are only at airports. But the people affected by winter weather are everywhere so we need you to tell us what is happening where you are. But we need more than winter weather details: when there are thunderstorms, we need to know if hail falls and, if it does, how big it is. Measuring with a ruler is best but, whatever you do, stay safe. All you need to do is use this app to select the precipitation type. Tell us what is hitting the ground. NSSL scientists will compare your report with what the radar has detected and what our models think the atmosphere is doing, and use it to develop new technologies and techniques to determine what kind of precipitation such as snow, ice, rain or hail and its size is falling where.
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.
Screenshots
Verdict
The clearest difference is rating: mPing at 4.0 against GLOBE Observer's 3.1. mPing also leads on review sentiment (56% vs 34%). GLOBE Observer's advantage is update cadence (every 2 months vs every 6 months). On price, ratings volume, ads and in-app purchases 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.
mPing holds the better App Store score, 4.0 against 3.1. Both are backed by a comparable volume of ratings — 154 and 86 respectively. Written reviews point the same way: 56% of mPing's written reviews are positive against 34% of GLOBE Observer's.
mPing ships an update every 6 months, GLOBE Observer every 2 months. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.
| Parameter | mPing | GLOBE Observer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (154 ratings) — better | 3.1 (86 ratings) |
| Positive reviews | 56.3% of reviews — better | 33.9% of reviews |
| Number of ratings | 154 — better | 86 |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 9 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | University of Oklahoma (Information Technology) | NASA |
Customer experience
mPing
GLOBE Observer
User reviews
mPing
From 154 App Store ratingsWhat we love
- 👍 Easy to use
- 💡 Useful for citizen science
- 👍 Helpful for NWS
- 👍 Fun to participate
- 🚀 Quick and easy reporting
Room to improve
- 🐛 App no longer works
- 🐛 Reports fail constantly
- 🐛 App freezes
- 🐛 Lagging when choosing report type
- 🐛 Useless for consumers
GLOBE Observer
From 86 App Store ratingsWhat we love
- 👍 Great for citizen science
- 💡 Educational and informative
- 👍 Easy to use (for some)
- 👍 Meaningful environmental measurements
- 👍 Fun and engaging
Room to improve
- 🐛 App crashes frequently
- 🐛 Login/update issues
- 🐛 Account creation problems
- 🐛 Observations not submitting
- 🐛 Poor UI/UX design
Bugs and requests
mPing
Reported bugs
44 issues- App not working after iPhone update
- App no longer works (iOS 26.2)
- App doesn't work well with new iPhones
- Reports fail constantly
- Big lagging when choosing type of report
Show 39 moreShow fewer
- Freezing completely when submitting report
- Unable to view submitted reports
- Issue with "Report Types", no dropdown menu
- App has not been upgraded with recent iOS updates
- All report submissions “fail to report”
- Freezes and inability to select reports
- “Report Submission Failed - Sorry, unable to submit your report!” message
- Touching the Select Report Type button freezes the app
- Unable to choose report type
- Nothing happens when you try to report
- App freezes after clicking “select report type”
- MPING is broke
- App no longer working for months
- Stopped working
- Stopped submitting reports
- Failing to send
- No longer allows submission of weather events
- Won't let me send any reports
- App won't allow submissions
- Error when submitting reports
- Failed to submit report message
- Haven’t been able to submit report in awhile
- Error message, app won't accept submission
- Vulnerabilities preventing report submission
- Stopped letting me submit
- Bogus submissions disabled the app
- Nothing was there when trying to select report type
- Report can not be sent
- Location function won't stay hooked up
- Need to keep reinstalling to work
- Zoom buttons show nothing but black screen
- Pinch zoom map of reports slows and crashes occur
- Latest version missing option for plain snow
- New format isn't good, prefer black background
- No option for snow, only snow/graupel
- Older version ran fine, newer version unable to submit reports
- Lettering and logos too large in newer version
- No longer works on iOS 8.4.1
- App doesn't work until upgraded to iOS 9.2.1
Requested features
18 requests- Option to report 'snow' alone
- Add funnel and wall cloud reports
- Add wind report system (tornadic and storm)
- Add thunder/lightning reporting
- Add earthquake reporting
Show 13 moreShow fewer
- Add option to change location manually
- Add snow quantity reporting
- Add frost reporting
- Add thunder reporting (not lightning)
- Add high winds and speed reporting
- Add smoke in reduced visibility report
- Add state highway numbers to 'view reports'
- Support for photos and video clips
- Real-time reporting database
- Local news feeds
- Legend for map icons
- Measurement of raindrop splash size
- More detailed precipitation classification
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
Show 34 moreShow fewer
- 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
Show 3 moreShow fewer
- More explanation/examples for cloud types
- Export data in spreadsheet/GPS format
- Allow users to contribute design improvements
In-app purchases
mPing
No in-app purchases
GLOBE Observer
No in-app purchases









