Guess What vs SkyLaunch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Guess What
Test your knowledge of the cosmos daily with a new space image from NASA's Astronomy Picture of the Day. Choose the correct answer from four options and learn fascinating facts about celestial objects. This app makes learning about space fun and accessible for everyone.
- Daily space image quiz
- Powered by NASA APOD
- Multiple choice questions
- Learn space facts
- Suitable for all ages
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Think you know space? Let’s find out. With Guess What – APOD Edition, every day is a new chance to explore the cosmos. Daily Space Quiz Powered by NASA’s Astronomy Picture of the Day (APOD), you’ll see a new space image every day — and guess what it is! Test Your Knowledge Choose the correct answer from 4 options. Learn fun facts about stars, galaxies, nebula, and more. Accurate, Real-Time Content All images and descriptions are sourced directly from NASA’s official APOD feed — no fluff, just space. Great for All Ages Whether you’re a student, space enthusiast, or just love daily trivia, this app makes learning fun and simple.
SkyLaunch
Stay informed about all upcoming space missions with real-time notifications and detailed information. Track launches from various providers worldwide, view mission specifics, and access live streams. Share your excitement with friends and customize your viewing experience.
- Real-time push notifications for launches
- Monthly dashboard overview of missions
- Filter launches by global region
- Detailed mission pages with purpose and weather
- Direct links to live launch streams
- Launch probability and weather impact
- Share launch events with others
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Never miss a rocket launch again. SkyLaunch keeps you up to date with upcoming space missions by sending you real-time notifications before liftoff. Whether it’s NASA, SpaceX, Rocket Lab, or other providers around the globe, you’ll always know when the next countdown begins. Key Features: Push Notifications – Get alerts before every scheduled launch. Dashboard Overview – See a monthly summary of upcoming missions. Launch List by Region – Filter launches by location worldwide. Detailed Launch Pages – Access mission purpose, launch provider, weather forecasts, and more. Live Streams – Watch launches with direct links to official feeds. Probability Scale – View launch readiness and weather impact. Share Launches – Spread the excitement with friends and social networks. Custom Settings – Toggle light/dark mode, switch between metric/imperial units, and view data source status.
Screenshots
Verdict
The clearest difference is iOS requirement: Guess What at 16.6 against SkyLaunch's 18.0. On price, rating, review sentiment and ratings volume 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Guess What against 4.9 for SkyLaunch. Both are backed by a comparable volume of ratings — 3 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Guess What ships an update fortnightly, SkyLaunch every 2 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.
| Parameter | Guess What | SkyLaunch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 7 — better |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Loony Devs, LLC | Calvin Fraites |
Customer experience
Guess What
SkyLaunch
In-app purchases
Guess What
No in-app purchases
SkyLaunch
No in-app purchases









