AstroWidget vs EduLens
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
AstroWidget
Access real-time astronomical data with customizable widgets. Track celestial bodies like planets, comets, and the moon, with special alerts for lunar events. Explore the night sky with interactive horizon and map views.
- Real-time celestial body tracking
- Customizable astronomy widgets
- Moon phase and special event alerts
- Horizon and star map views
- Interactive date and time adjustments
- Comet and planet position display
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The main app shows the planet orbits around the Sun. User can quickly change the date using the Year input and day slider. The moon orbit is displayed relatively to the Earth motion. Quick glance of the positions of the sun, moon and planets at your current location, birthday or important market event. Home Screen Widgets: Moon - Provide information for its phase, Supermoon, eclipse etc. Orbit - Provide information for planets location and conjunction etc. Horizon (Subscription required) - Provide live information for your local window view with star, planet, Sun and moon phase. Enjoy these simple and beautiful widgets! And feedback to me at ustransit74@gmail.com if you want more. Privacy policy and term of use (EULA) is at https://deepskycolor.blogspot.com/2018/12/privacy-policy-for-deep-sky-color-app.html
EduLens
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EduLens - A New Dimension in Academic Paper Learning EduLens is an intelligent PDF viewer that innovatively supports reading and understanding academic papers. Using AI technology, it helps you easily comprehend and efficiently learn complex scholarly materials. Key Features: Smart Paper Analysis - Automatic recognition and sectional analysis of ArXiv papers - Section-by-section summary of paper's key contents - Context-based quick questioning for selected text Customized AI Assistants - Field-specific AI assistants (AI/ML, Physics, Biology, Computer Science, Mathematics, etc.) - In-depth Q&A about paper contents - Instant explanation and interpretation of selected text Visualization & Analysis Tools - Interactive visualization support for complex concepts - Detailed explanations of images, charts, and equations in papers - Visual representation of key concepts and relationships Advanced Annotation Features - Various annotation tools including highlight, underline, and strikethrough - Free-form writing mode support - Annotation management and search functionality User-Friendly Interface - Intuitive sidebar navigation - Multiple PDF document management - Clean chat interface Special Features - Image-based questioning - Content-based visualization generation - Real-time concept explanation and interpretation Experience more efficient and in-depth paper learning with EduLens, suitable for students, researchers, and professionals alike.
Screenshots
Verdict
The clearest difference is update cadence: EduLens at daily against AstroWidget's fortnightly. EduLens also leads on device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
AstroWidget ships an update fortnightly, EduLens daily. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.
| Parameter | AstroWidget | EduLens |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | โ |
| Update frequency | Fortnightly | Daily โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | โ |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac โ better |
| Requires iOS | 17.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 5 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | yong chong loh | yechan do |
In-app purchases
AstroWidget
No in-app purchases
EduLens
No in-app purchases









