Observer Pro vs Virtual Eye Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Observer Pro
This app helps advanced astronomers and astrophotographers plan their observing sessions. It predicts object visibility, factoring in local obstructions, and provides weather forecasts. Manage observing lists and favorite sites to maximize your stargazing time.
- 14,000+ deep sky objects with photos
- Local horizon profile measurement
- Object visibility prediction charts
- Featured object recommendations
- Favorite observing site management
- Astronomical weather forecasts
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Observer Pro is an indispensable app for advanced astronomy observing and astrophotography planning. No more guessing when that galaxy emerges from behind that tree. No more estimating how many hours you'll be able to image an object. Observer Pro gives every astronomer the info they need to make the most of their observing right at their fingertips! What astronomers are saying: "Every astronomer with an iPhone should own this app!" - Astronomy Technology Today magazine "Observer Pro is the most impressive astronomy app that I have tried out. I enthusiastically commend it to you!" - Tom Mote, Professor Emeritus, Astronomy "I have been using it since the day it first became available and I cannot live without it now." - Sedat B., Cloudy Nights forum Feature highlights: • Over 14,000 deep sky objects included, all with closeup reference photos. No need to download anything after install! Sorting and search make it easy to sift through all of them to find which objects belong on your observing list. • Measure your local horizon profile in minutes with your iPhone. • Unique charts completely take the guesswork out of predicting object visibility. Your house, trees, mountains, or any other obstructions are completely factored in to all visibility charts. • New to astronomy? The Featured object list shows a list of objects specific to your location and local horizon that are great for observing right now. • Keep a list of your favorite observing sites, each with their own local horizon profile. Compare object visibility between sites to find the best spot to setup your scope. • There's a lot to observe! Observer Pro gives you a place to maintain a list of your favorite objects as well as an observing list that you can take with you to the eyepiece. • 7Timer! astronomical weather forecasts for your observing sites are viewable without leaving Observer Pro. They give you the outlook on cloud cover, seeing, transparency, and more. • Check out the in-app help to learn more about how to use the many features that come with Observer Pro. Keep up-to-date with the latest news at the Observer Pro blog: http://observer.pro/blog
Virtual Eye Pro
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Discover the Human Eye in 3D – Anatomy, Functions, and Pathologies Take a deep dive into the fascinating world of the human eye with this interactive 3D educational app. Designed for students, teachers, and enthusiasts of anatomy and medicine, this app offers a comprehensive and highly visual way to explore every detail of the eye’s structure and its functions. From external anatomy to the most intricate internal mechanisms, you will be able to rotate, zoom, and interact with a fully detailed 3D model. The app goes beyond static diagrams by including animations, progressive visual effects, and clear explanations that make complex concepts easier to understand. Main Features: - Complete 3D Eye Dissection - Explore a full 3D dissection of the human eye, showing every part in detail. - View the eye cut in half to examine its internal components and understand how each structure fits together. - Rotate, zoom, and isolate specific parts to study them individually. - Internal Structures and Functions - Discover the cornea, lens, retina, iris, optic nerve, and more. - Understand how each element contributes to vision. - Visualize the eye’s accommodation system and how it adapts focus for near and far objects through interactive animations. - Pathology Studies - Learn about cataracts through progressive simulations that show how opacity in the lens develops and affects vision. - Study glaucoma with visualizations of intraocular pressure and its impact on the optic nerve. - See realistic progressions of these conditions through animations and effects. - Interactive Animations and Controllers - Control dissections with interactive animation tools. - Step through complex processes at your own pace, adjusting playback to focus on specific stages. - Observe progressive changes in both normal function and pathological states. - Informative Panels - Access detailed definitions of every part of the eye, from the cornea to the retina, including their roles in vision. - Explore dedicated explanations of cataracts and glaucoma, with clear language supported by visuals. - Use the app as both a quick reference tool and an in-depth learning resource. Why This App? The human eye is one of the most sophisticated organs in the body, and understanding its structure is key for students of medicine, biology, and health sciences. Traditional textbooks often make eye anatomy difficult to grasp because of the eye’s complexity and the limitations of 2D diagrams. This app breaks that barrier by offering a fully interactive 3D experience where you can explore the eye from every angle. Whether you are studying for exams, preparing lessons, or simply fascinated by biology, this app offers an intuitive and engaging way to learn. The addition of pathologies such as cataracts and glaucoma also makes it valuable for understanding common medical conditions that affect vision. Ideal For: - Medical students and healthcare professionals. - Teachers and educators in biology and anatomy. - Anyone interested in learning how the human eye works. With clear explanations, immersive 3D models, and dynamic animations, this app makes the study of the human eye both accessible and fascinating. Explore, learn, and understand vision like never before.
Screenshots
Verdict
The clearest difference is price: Virtual Eye Pro at $5.99 against Observer Pro's $13.99. Virtual Eye Pro also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On 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
Observer Pro costs $13.99 and Virtual Eye Pro $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Observer Pro | Virtual Eye Pro |
|---|---|---|
| Price | $13.99 | $5.99 — better |
| Rating | 4.6 (49 ratings) — better | — |
| Positive reviews | 79.2% of reviews | — |
| Number of ratings | 49 — better | — |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 241 MB | 194 MB |
| Age rating | 4+ | 4+ |
| Developer | Joshua Bury | Milton Veliz Coronel |
Bugs and requests
Observer Pro
Reported bugs
10 issues- App crashes when selecting catalog groupings (Galaxy, Planetary Nebulae, etc.)
- iOS keyboard doesn't dismiss on iPad after clicking Done
- Observer lists and custom data disappearing after app closure
- Search feature missing in version 1.4
- Continuous crashes since recent updates
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- Horizon drawing feature unreliable - drifts while drawing
- Menu items on far right side of screen unresponsive
- Incompatibility with iOS 8 (historical)
- App crashes on startup with certain iOS versions
- Weather feature broken
Requested features
16 requests- iPad native app with landscape mode support
- Search functionality restoration/improvement
- Export observer lists to other apps (Sky Safari, etc.)
- Support for planets, comets, and asteroids
- Observing notes and session logging
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- Field of view/scope focal length comparison
- Color object photographs
- Additional catalogs (Sharpless, etc.)
- Moon visibility in sky view
- Azimuth-based sorting for telescope positioning
- Filter options for object types
- Cross-device syncing between iPhone and iPad
- Print functionality for observing plans
- User-created custom catalogs
- Screen auto-rotation support
- Weather forecast integration
Virtual Eye Pro
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Observer Pro
No in-app purchases
Virtual Eye Pro
No in-app purchases








