QYScience vs StellarVana
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QYScience
This educational app offers a fun and interactive way to learn science concepts through custom control and graphical programming. Explore lighting and motor systems with engaging gameplay.
- Custom control of lighting systems
- Custom control of motor systems
- Graphical programming gameplay
- Interactive science learning
- Engaging educational experience
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Group science and education. Including lighting master control, motor master control of the full custom control and graphics programming gameplay, so that you experience different fun!
StellarVana
Explore the night sky with a dynamic celestial map. Identify stars, planets, and constellations in real-time. Plan observations and learn about astronomical events like eclipses.
- Live sky map identification
- Constellation and object search
- Eclipse countdowns and visibility
- Tonight's observation planner
- Educational astronomy topics
- Night-vision red mode
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Open to a living sky. Identify what's overhead. StellarVana is an educational star map and celestial reference: the sky above your horizon, IAU constellations, Sun, Moon, and planets, plus eclipse countdowns with honest visibility. Sit with the map. Pan, pinch, and scrub time. The first screen is the sky itself. Hold-up uses the compass and gyroscope so the drawn map follows how you point your phone — there is no camera viewfinder. Search finds objects. Instruments sit on the map: Tonight, Eclipse, Learn, and Settings. WHAT MAKES IT DIFFERENT • Tonight Observe ranks targets for your horizon — twilight, best-now, and Moon-wash (what the Moon will drown tonight) • Eclipse honesty: local “visible here” versus a global candidate. A miss is not upgraded into a backyard forecast • Confirmed exoplanet-host stars on the map. The included sky keeps the brightest hosts. A subscription Search also finds famous systems, including TRAPPIST-1 (about 2,000 hosts). • Instruments on the map, not a tabbed planetarium. Graphics-first Learn — diagrams and Help, not a chat • Sky math on your iPhone (VSOP87, Meeus, SGP4). ISS TLE age is shown. No account. SKY MAP • Live stereographic sky for your location, or a manual latitude and longitude • Naked-eye catalog (magnitude 5) with all 88 IAU constellation names • Constellation stick figures on Free (Orion, Ursa Major, Crux, twelve ecliptic); sky colors that follow the time of day • Hold-up identify and night-vision red mode (night vision hides the normal dome tints) • Naked-eye Messier highlights: Andromeda (M31), Orion Nebula (M42), Pleiades (M45) • Deeper sky when you subscribe: about 42,000 stars to magnitude 8, about 120,000 to magnitude 9, zoom level-of-detail, Messier 110, illustrated art on the twelve ecliptic constellations, full constellation stick-figure pack, optional IAU boundary lines, and the confirmed exoplanet-host layer (about 2,000) SATELLITES • Included: the ISS next pass for your horizon. No clock and no path on the map. • With a subscription: the ISS path and timetable, Hubble, Tiangong (the Chinese space station), and a Starlink-train card when a train passes tonight. Not every satellite in orbit. TONIGHT OBSERVE • Meteor-shower peaks and bright conjunctions as factual event cards • Observation planning for your horizon: twilight bands, ranked targets, best-now, and Moon-wash — what the Moon will drown tonight ECLIPSES • Next solar and lunar geocentric candidates, countdown, diagrams, show on map • Local circumstance when you subscribe: visible here, magnitude, path-vs-you, and a NASA GSFC / Espenak Earth path ribbon on a dedicated Earth card. A miss is not upgraded into “you will see it.” LEARN • Graphics-first topics from the live sky — diagrams and short Help popups, not encyclopedia essays • Positions use VSOP87 (Sun and planets) and Meeus (Moon). ISS uses SGP4 from a TLE; age is shown. PRIVATE BY DESIGN Sky math runs on your iPhone. Location is used to draw your horizon (or set coordinates manually). EDUCATION ONLY StellarVana is astronomy education and observation planning. It is not a photographer’s shot planner, and not medical or professional advice. Privacy Policy: https://stellarvana.com/privacy Terms of Use: https://stellarvana.com/terms Support: support@stellarvana.com
Screenshots
Verdict
The clearest difference is rating: StellarVana at 5.0 against QYScience's 4.5. QYScience's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 26.0). On price, ratings volume, update cadence and ads 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. StellarVana sells 2 in-app purchases, starting at $4.99 per month. QYScience asks for nothing beyond the download.
StellarVana holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
QYScience ships an update every 11 days, StellarVana every 3 weeks. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.
| Parameter | QYScience | StellarVana |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 11 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 292 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | 广东群宇互动科技有限公司 | Gary Saggu |
Customer experience
QYScience
StellarVana
In-app purchases
QYScience
No in-app purchases
StellarVana
- StellarVana Premium monthly$4.991 Month
- StellarVana Premium Annual7 Days trial$39.991 Year









