ScrollPlanets vs Apphemeride Precise Astronomy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScrollPlanets
Discover stunning daily space imagery and learn about NASA's technology through an immersive, distraction-free scrolling experience. Save your favorite cosmic discoveries and explore planets, stars, and the wonders of space exploration.
- Daily space imagery
- NASA technology insights
- Infinite scrolling
- Ad-free interface
- Save favorite content
- Learn through exploration
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AstronomyScroll: Explore space AstronomyScroll: Explore space brings you breathtaking daily space imagery and insights into NASA's technology. Designed with a clean, immersive interface, you can endlessly scroll through space content without distractions. Whether you're fascinated by planets, stars, or the technology that powers space exploration, AstroScroll turns your curiosity into a daily journey through the cosmos. Key Features: - Infinite Scrolling Experience - Seamlessly explore NASA imagery without limits. - Ad-Free Interface - Focus entirely on the content without interruptions. - Save Favorites - Bookmark the photos and facts you love for later viewing. - Learn Through Exploration - Get inspired by real NASA technologies and space knowledge. Privacy & Terms Your privacy matters to us. Please review our terms below: Privacy Policy: https://developing-comet-b87.notion.site/Privacy-Policy-AstroScroll-1e81f542e1a38043bc20c17da3f0694b?pvs=4 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ 1
Apphemeride Precise Astronomy
This app provides precise astronomical data for sky analysis, including eclipses, Moon motion, and planetary positions. It offers location-based calculations and visual tools to understand celestial events and their visibility.
- Precise sky analysis
- Eclipse and Moon motion tracking
- Location-based celestial calculations
- Horizon Tracker for celestial body movement
- Detailed planetary and solar system data
- Solar and lunar eclipse simulations
- Configurable data display
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Your sky. Your perspective. Explore the Sun, Moon, planets and more than 2.5 million stars with Apphemeride. Plan observations, follow celestial events and understand the sky through detailed data, interactive maps and a 3D solar system. BUILD YOUR OWN DASHBOARDS Bring together personal lists, your favorite objects and the details that matter to you. Arrange cards with the new layout system and choose the values, units and formats you want to see. TRAVEL THROUGH THE SOLAR SYSTEM Explore our solar system in 3D. Move between celestial objects and connect their positions in space with what you see in the sky. MAP YOUR NEXT OBSERVATION Explore the sky with constellations and coordinate grids. Use observation and Earth visibility maps to study where an object is above the horizon. Choose which astronomical guides and values appear in your views. GET TO KNOW EACH OBJECT The redesigned object view brings visual exploration and detailed parameters together. Depending on the object, examine rise, transit and set times, altitude, azimuth, coordinates, phase, illumination, brightness, angular size and distance. Search the expanded star catalog by TYC, HIP or HD identifier. FOLLOW EVENTS AND ECLIPSES Study solar and lunar eclipse visibility with maps and simulations. Find upcoming celestial events for a selected location, open them on the sky map, and follow objects in personal watchlists. Set alerts for the astronomical values you want to track. UNDERSTAND THE LOCAL HORIZON Use the Horizon Tracker to compare the paths of the Sun, Moon and planets over a day, month or year. Explore different times and locations to plan observations, travel or astrophotography. AT HOME IN 17 LANGUAGES English, German, Spanish, French, Portuguese, Italian, Arabic, Hungarian, Russian, Polish, Turkish, Hindi, Simplified Chinese, Japanese, Korean, Vietnamese and Indonesian. Core astronomical calculations and bundled catalogs work offline. Online features such as address search, map imagery and current sunspot data require an internet connection. Explore the Sun and Moon for free. Try all features free for three days, then unlock the full version permanently with a one-time in-app purchase. Existing paid customers keep their permanent access.
Screenshots
Verdict
The clearest difference is monetization model: Apphemeride Precise Astronomy at free against ScrollPlanets's freemium. Apphemeride Precise Astronomy also leads on review sentiment (100% vs 83%). ScrollPlanets's advantage is iOS requirement (16.6 vs 26.0). 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
Both are free to download. ScrollPlanets sells 3 in-app purchases, starting at $3.99 per 7 days and Apphemeride Precise Astronomy sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
ScrollPlanets ships an update every 2 weeks, Apphemeride Precise Astronomy every 4 weeks. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | ScrollPlanets | Apphemeride Precise Astronomy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 83.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 18 MB | 442 MB |
| Age rating | 4+ | 4+ |
| Developer | samet bilgin | Csaba Lengyel |
Customer experience
ScrollPlanets
Apphemeride Precise Astronomy
In-app purchases
ScrollPlanets
- weeklyplan3 Days trial$3.997 Days
- yearlyplan$9.991 Year
- lifetime$17.99
Apphemeride Precise Astronomy
- 3-day TrialFree
- Apphemeride Full Unlock$49.99






