Comparison

StarMap 3D vs GCEO Group

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

Head to head
About

StarMap 3D

Explore the night sky with this astronomy guide. It uses your device's sensors to identify planets, constellations, and deep sky objects in real-time. Discover detailed information about celestial bodies and visualize the universe in 3D.

Highlights
  • Real-time celestial object identification
  • Augmented reality night sky view
  • Detailed information on stars and deep sky objects
  • Constellation artwork and line options
  • Location-based celestial mapping
  • 3D universe visualization
Features
Read full description

Use your iPhone's compass and gyroscope to find planets, constellations, and more with crisp, colorful, high-definition Retina graphics that use every pixel of your iPhone! Hold the universe in your pocket! • Try StarMap 3D Plus for iPad support, more stars, thousands of Deep Sky Objects, and original constellation artwork. StarMap 3D is the portable star atlas for beginners or advanced astronomers. Use StarMap 3D to find the planets, stars, constellations, star clusters, galaxies, and nebulae visible to you based on your location and time. StarMap 3D will even use the compass to automatically align the map! • Retina Display Compatibility • Over 15,000 stars, with detailed information for each of them • 303 deep sky objects, with details such as distance from Earth, diameter, apparent size and orientation, and morphology • All 88 modern constellations, with lines based on the outlines from "The Stars: A New Way to See Them" by H.A. Rey • MacRobert and Classic constellation lines also available • Location-based-services (LBS) / Global Positioning System (GPS) support, or manually enter your longitude and latitude • Adjustable date and time of day • Also adjust time instantaneously and interactively with the Time Scroll feature • Compass support, if present • Planetarium Mode for seeing only objects visible to you, or browse the entire celestial sphere • 3D Mode for visualizing the universe in three dimensions

About

GCEO Group

Access trusted clinical content on eye disorders and eye care. Features patient information leaflets for understanding conditions and surgery, plus evidence-based clinical guidelines for ophthalmology and optometry professionals. Content is regularly revised to keep users current.

Highlights
  • Patient information leaflets
  • Understanding eye conditions
  • Eye surgery information
  • Clinical guidelines for professionals
  • Regularly revised content
  • Ophthalmology and optometry resources
Features
Read full description

The Group of Guidelines Consensus and Education in ophthalmology Education app offers free, easy access to clinical content from the Group of Guidelines Consensus and Education in Ophthalmology, your source for the most trusted and reliable information on eye disorders and eye care. Contents are revised regularly to help patients and busy clinicians stay current with changes in their field of practice. Download this app to select: · Patient information leaflets that help you: o understand and manage your condition. o understand the benefits, risks, and alternatives of your proposed eye surgery as well as know what to expect before, during, and after it. · Clinical guidelines* based on evidence to assist doctors in making decisions about patient care. Such guidelines can improve the quality of eye care for patients. * available for ophthalmology and optometry professional registered users. About the Group of Guidelines Consensus and Education in ophthalmology: The mission of the Group of Guidelines Consensus and Education in ophthalmology is to protect sight by serving as a supporter for patients and the public, leading ophthalmic education, and advancing the profession of ophthalmology to ensure the delivery of the highest-quality eye care. Disclaimer: Remember to always seek a doctor’s advice in addition to using this app before making any medical decisions.

Screenshots

StarMap 3D4 screens
GCEO Group4 screens

Verdict

The call

The clearest difference is price: GCEO Group at Free against StarMap 3D's $1.99. GCEO Group also leads on in-app purchases (none vs 3) and review sentiment (100% vs 89%). StarMap 3D's advantage is ratings volume (1.4K vs 1) and update cadence (every 6 weeks vs every 3 months). On rating, ads 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

CostPrice · In-app purchases · Ads · Monetization

GCEO Group is free to download; StarMap 3D costs $1.99 up front. StarMap 3D sells 3 one-off in-app purchases. GCEO Group asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GCEO Group holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: StarMap 3D has 1.4K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 89% of StarMap 3D's written reviews are positive against 100% of GCEO Group's.

UpkeepUpdate frequency

StarMap 3D ships an update every 6 weeks, GCEO Group every 3 months. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
StarMap 3D versus GCEO Group: the parameters behind the verdict, then further details
ParameterStarMap 3DGCEO Group
Price$1.99Free — better
Rating4.8 (1.4K ratings)5.0 (1 ratings) — better
Positive reviews88.7% of reviews100.0% of reviews — better
Number of ratings1.4K — better1
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size111 MB27 MB
Age rating4+17+
DeveloperSanville SoftwareHussam Alfhaily

Customer experience

StarMap 3D

All ratings1,369 ratings
Positive96.7%
Neutral1.1%
Negative2.2%
Written reviews274 reviews
Positive88.7%
Neutral2.2%
Negative9.1%

GCEO Group

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

StarMap 3D

Reported bugs

2 issues
  • Calendar integration issues
  • Incorrect positioning of celestial bodies

Requested features

4 requests
  • Improved 3D mode and controls
  • More detailed information on planets, stars, and galaxies
  • Alerts for upcoming astronomical events
  • Option to search for specific celestial objects

GCEO Group

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

StarMap 3D

One-time3
  • Constellation Artwork$0.99
  • More Stars$0.99
  • More Stars$1.99
None

GCEO Group

No in-app purchases

Questions

Is StarMap 3D free?
StarMap 3D costs $1.99, and also offers in-app purchases.
Is GCEO Group free?
GCEO Group is free to download, with no in-app purchases.
Which has better reviews, StarMap 3D or GCEO Group?
GCEO Group is rated higher. StarMap 3D averages 4.8 out of 5 from 1.4K ratings, while GCEO Group averages 5.0 from 1 ratings.
Do StarMap 3D or GCEO Group have ads?
Neither StarMap 3D nor GCEO Group shows ads.
Which is updated more often, StarMap 3D or GCEO Group?
StarMap 3D ships an update every 6 weeks, and GCEO Group every 3 months. Most recently, StarMap 3D was updated on October 29, 2026 and GCEO Group on October 20, 2026.

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