Mars Today vs Solar System&Celestial Objects
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mars Today
Access the latest images of Mars from NASA's Curiosity rover. Browse current photos or explore past images from Curiosity, Spirit, and Opportunity by SOL. Bookmark and share your favorite discoveries.
- Latest Mars images from Curiosity
- View past images from Spirit and Opportunity
- Browse by Mars SOL
- Bookmark favorite images
- Easy sharing functionality
- No login required
Read full descriptionHide full description
Mars Today brings you the latest images of Mars from NASA’s Curiosity rover. You can view the current photos or jump to any Mars SOL to view past photos from Curiosity, Spirit, and Opportunity. Bookmark your favorite images and easily share with your friends. No login required. Explore the red planet today!
Solar System&Celestial Objects
Read full descriptionHide full description
Easy learning about solar system, stars, celestial objects, constellations, spacecraft with pictures ,sounds and quiz games. If you who always search and learn a quiz app like these, this app is for you ① Solar system Flash card app. ② Stars Quiz app. ③ Celestial objects quiz app. ④ Stars history and information app. ⑤ Constellations name cards. ⑥ Guess solar system app. Features: - You can learn many kinds of stars. - You can play solar system quiz. - Many information related to solar system, stars, celestial objects, constellations, spacecraft - Support Quiz feature. - Support 5 languages: English, Japanese, Korean, Chinese, Vietnamese
Screenshots
Verdict
The clearest difference is ads: Mars Today at none against Solar System&Celestial Objects's shown. Solar System&Celestial Objects's advantage is iOS requirement (12.0 vs 15.2). On price, update cadence, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Mars Today ships an update monthly, Solar System&Celestial Objects every 6 weeks. The most recent releases landed on June 11, 2026 and May 16, 2026 respectively.
| Parameter | Mars Today | Solar System&Celestial Objects |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | James Buckhouse | NIKI TECH |
In-app purchases
Mars Today
No in-app purchases
Solar System&Celestial Objects
No in-app purchases
Questions
Is Mars Today free?
Is Solar System&Celestial Objects free?
Do Mars Today or Solar System&Celestial Objects have ads?
Which is updated more often, Mars Today or Solar System&Celestial Objects?
Other comparisons
