Comparison

GLOBE Observer vs Kai Reads

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Make environmental observations
  • Document clouds
  • Map mosquito habitats
  • Record land cover
  • Measure tree height
  • Contribute to scientific research
Features
Read full description

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.

About

Kai Reads

Features
Read full description

Kai Reads turns learning to read into a real adventure. Join Kai, a curious kid explorer, on a trip across four planets — each one built around a different reading skill kids need to become confident readers. WHAT KAI READS TEACHES Dino Planet — Sound It Out Practice phonics by sounding out letters one at a time, then blast the word to watch it come together. Haunted Moon — Build Words Drag letter tiles into the right order to build spelling and word-construction skills. Web Station — Catch Sight Words Quick-recognition rounds for the high-frequency "sight words" every early reader needs to know by heart. Story Planet — Read a Story Short, illustrated stories read aloud line by line, building reading fluency and a love of stories. NOW SUPPORTS IPHONE DUO Kai Reads now supports iPhone Duo. Closed, open, or partly open, in landscape or portrait, every screen adapts to the fold and stays centered and readable, clear of the camera and status area. BUILT FOR REAL KIDS, NOT JUST SCREENS Kai Reads speaks every word aloud using natural, on-device speech — no internet required to play. In Parent Settings, grown-ups can fine-tune the speaking speed and voice pitch, and pick from the best voice installed on the device (including Apple's Enhanced and Premium voices, when downloaded). STARS, STICKERS & GOALS Every correct answer earns a star. Earn 5 stars in a game to unlock its collectible sticker in Kai's Sticker Book. Parents can set daily and weekly star goals from Parent Settings, and Kai cheers when a goal is hit — turning practice into a small, repeatable win instead of an open-ended screen session. GAME CENTER Total stars and unlocked stickers sync to Game Center, so progress is never lost and kids can see their own growth over time. MADE FOR PARENTS WHO ARE PICKY ABOUT SCREEN TIME No ads. No in-app purchases. No accounts, logins, or data collection beyond what's needed for Game Center. Just a focused, kid-safe reading game designed to be handed to a young reader with nothing to worry about. Kai Reads works on iPhone (including iPhone Duo) and iPad, in landscape or portrait, and is best enjoyed with the sound on.

Screenshots

GLOBE Observer4 screens
Kai Reads4 screens

Verdict

The call

The clearest difference is iOS requirement: GLOBE Observer at 13.0 against Kai Reads's 26.5. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

GLOBE Observer ships an update every 2 months, Kai Reads every 6 weeks. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
GLOBE Observer versus Kai Reads: the parameters behind the verdict, then further details
ParameterGLOBE ObserverKai Reads
PriceFreeFree
Rating3.1 (86 ratings) — better—
Positive reviews33.9% of reviews—
Number of ratings86 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.5
Further details — not scored
Size5 MB17 MB
Age rating4+4+
DeveloperNASAVictor Galloza

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
Show 34 more
  • 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 more
  • More explanation/examples for cloud types
  • Export data in spreadsheet/GPS format
  • Allow users to contribute design improvements

Kai Reads

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

GLOBE Observer

No in-app purchases

None

Kai Reads

No in-app purchases

Questions

Is GLOBE Observer free?
GLOBE Observer is free to download, with no in-app purchases.
Is Kai Reads free?
Kai Reads is free to download, with no in-app purchases.
Do GLOBE Observer or Kai Reads have ads?
Neither GLOBE Observer nor Kai Reads shows ads.
Which is updated more often, GLOBE Observer or Kai Reads?
GLOBE Observer ships an update every 2 months, and Kai Reads every 6 weeks. Most recently, GLOBE Observer was updated on October 15, 2026 and Kai Reads on October 16, 2026.

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