ESA aeolus vs Space Telescope App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ESA aeolus
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This application is a gateway to knowing what the ESA Aeolus mission is about, how it works and what the elements of the space and ground segment that makes this mission unique are. It includes also a dedicated section that allows one to discover and visualize real ESA Aeolus measurements over our planet: a remarkable tool for students and scientists engaged in using Aeolus products or interested in satellite engineering. Features: - Description of the ESA Aeolus mission: space and ground segment - Large selection of photos and videos on a wide range of topics related to Aeolus - Latest mission operations news - Striking Aeolus 3D model with explanations of the different platform and payload elements - World map with orbit position of the ESA satellite - Satellite visibility over selected ground stations and local position - Automatic update of the Aeolus orbit - Impressive visualization of real Aeolus measurements over the Earth with vertical profiles and easy geographical localization - Access to several geophysical parameters measured by the satellite … and much more In the 3D environment: - swipe/pinch to rotate/zoom the scene or the satellite model - triple touch to reset position
Space Telescope App
Explore the universe with real-time updates and stunning visuals from NASA's James Webb Space Telescope. Engage with expert insights, join community discussions, and test your knowledge with interactive quizzes. Discover distant galaxies and unlock the secrets of the early universe.
- Live mission updates
- Breathtaking image gallery
- Expert Q&A with astronomers
- Community discussions
- Interactive space quizzes
- 3D solar system explorer
- Exclusive wallpapers
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Space Telescope is an astronomy app for people who actually go outside and look up. See what the James Webb Space Telescope is observing right now. Decide whether tonight is worth staying out for. Catch the next visible ISS pass over your own location, and follow the rocket launches coming up. WHAT WEBB IS LOOKING AT, RIGHT NOW Webb's current target, science category, proposal, instruments and scheduled times, refreshed every five minutes while the view is open. Tap through to the proposal or the full observation schedule. A REAL PLAN FOR METEOR NIGHT Most meteor apps hand you a peak date. This one tells you what you will actually see. Set your location and how dark your sky is, and get an honest meteors-per-hour range, the best viewing window, where to look, how much the Moon will wash out, and what 30, 60 or 90 minutes outside is likely to be worth. Two alerts that matter: a heads-up the evening before, and a nudge when your window opens. Cloud cover is not included, so check the weather before you commit. THE ISS, OVER YOUR HOUSE Live position, altitude, velocity and orbit, plus crew, expeditions, dockings and visiting vehicles. Seven days of passes for your location with quality, direction, peak elevation and duration - set a 10-minute alert or drop the pass straight into your calendar. LAUNCH DAY Upcoming launches with live countdowns, status, provider, rocket, pad, launch window and webcast link. One tap for a reminder 15 minutes before liftoff. GALLERIES WORTH SCROLLING Imagery and mission guides for James Webb, Hubble, Chandra, the Nancy Grace Roman Space Telescope, Artemis, Mars and the ISS. Follow Roman's countdown, instruments and journey to L2. Pinch to zoom, save, share, like and comment. Turn on alerts only for the galleries you care about. PICTURE OF THE DAY NASA's Astronomy Picture of the Day, image or video, with the full expert explanation and an optional daily alert. AND WHEN YOU WANT MORE - Tonight Sky: sunrise, sunset, Moon phase, illumination and twilight - Space Weather: Kp index, solar wind, aurora probability and active alerts - Cosmic Calendar: meteor showers, eclipses and other sky events - Exoplanets: discovery method and year, distance, orbit, mass, radius, temperature, host star and habitable-zone marker - Community astrophotography: post your own shots with gear and conditions - Space wallpapers for your phone - Quizzes, points, levels and global leaderboards - Ask an Astronomer, and live chat rooms in 10 languages - Full interface in English and Spanish PREMIUM Space Telescope is free, with ads. Premium removes every ad, unlocks the premium wallpaper collection and adds a gold avatar ring. Choose a monthly or annual subscription, or pay once for lifetime access, which also grants 1,000,000 points and Diamond level straight away. Subscriptions are charged to your Apple Account and renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings. Whether you follow Webb every day, plan a Perseids or Geminids watch, photograph the night sky, teach astronomy, or just want to know when the ISS will cross overhead, Space Telescope keeps the useful details in one place. Space Telescope is an independent astronomy app and is not affiliated with or endorsed by NASA, ESA, STScI, SpaceX or any launch provider. Data and imagery are credited to their respective sources. Privacy policy: https://jameswebbtracker.com/privacy-policy Terms of use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: ESA aeolus at none against Space Telescope App's 4. ESA aeolus also leads on ads (none vs shown) and iOS requirement (10.0 vs 15.0). Space Telescope App's advantage is update cadence (every 10 days vs every 4 months). On price 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
Both are free to download. Space Telescope App sells 4 in-app purchases, starting at $4.99 per month. ESA aeolus asks for nothing beyond the download.
ESA aeolus ships an update every 4 months, Space Telescope App every 10 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | ESA aeolus | Space Telescope App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.1 (31 ratings) — better |
| Positive reviews | — | 40.0% of reviews |
| Number of ratings | — | 31 — better |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 152 MB | 104 MB |
| Age rating | 4+ | 4+ |
| Developer | ESA - European Space Agency | KAKHA GIORGASHVILI |
In-app purchases
ESA aeolus
No in-app purchases
Space Telescope App
- Monthly Ad-Free Plan$4.991 Month
- Ad-Free Annual Access$29.991 Year
- Premium$2.99
- Buy 1M Points$99.99
Questions
Is ESA aeolus free?
Is Space Telescope App free?
Do ESA aeolus or Space Telescope App have ads?
Which is updated more often, ESA aeolus or Space Telescope App?
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