ASGuide vs Mars LTE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ASGuide
Explore the night sky with this astronomy companion. Discover planets, galaxies, nebulae, and more visible from your location. Generate custom viewing lists and preview celestial objects with an interactive sky atlas.
- Discover celestial objects visible from your location
- Generate custom viewing lists
- View detailed observation information
- Interactive sky atlas preview
- Dark mode for nighttime viewing
- Sunrise/sunset and moon phase dashboard
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Discover the wonders visible in your sky tonight. ASGuide (Astronomy Sky Guide) turns your location and observing time into a personal guide to the night sky. Discover visible planets, galaxies, nebulae, stars, star clusters, and galactic regions. Plan an observation, explore from home, or find your next celestial target. Find objects worth viewing and learn more about every discovery: - See what is visible from your location and when to observe it. View rise, transit, and set times. - Filter by magnitude, altitude above the horizon, constellation, object type, and more. - Search by common name, catalog number, constellation, object type, or detailed classification. - Browse the solar system and deep-sky categories. - Return quickly to recent searches and recently viewed objects. - See which planets are visible. - Save favorite objects for future viewing. - Use your current location or select any location on Earth. - Check sunrise, sunset, twilight, and night times. - Follow the current moon phase, illumination, moonrise, moonset, and the next new and full moons. - Open high-resolution imagery and explore objects with the interactive sky atlas. Customize the Home screen with the information that matters to you. Use the dark appearance for nighttime observations, or the standard iOS appearance. Your next night-sky discovery starts with ASGuide.
Mars LTE
Explore Mars with detailed information about the Perseverance rover's mission. Learn about its search for ancient life, sample collection, and technology testing for future human exploration. Discover the Ingenuity helicopter's groundbreaking flight capabilities.
- Perseverance rover mission details
- Search for ancient microbial life
- Core sample collection and storage
- Technology testing for human exploration
- Ingenuity helicopter flight information
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Launch Date : July 30, 2020 Landing Date : Feb. 18, 2021 Location: Jezero Crater, Mars The Mars 2020 Perseverance Rover will search for signs of ancient microbial life, which will advance NASA's quest to explore the past habitability of Mars. The rover has a drill to collect core samples of Martian rock and soil, then store them in sealed tubes for pickup by a future mission that would ferry them back to Earth for detailed analysis. Perseverance will also test technologies to help pave the way for future human exploration of Mars. Strapped to the rover's belly for the journey to Mars is a technology demonstration — the Mars Helicopter, Ingenuity, may achieve a "Wright Brothers moment “ by testing the first powered flight on the Red Planet.
Screenshots
Verdict
The clearest difference is update cadence: ASGuide at every 4 months against Mars LTE's every 43 months. ASGuide also leads on ratings volume (9 vs 1). Mars LTE's advantage is rating (5.0 vs 4.8) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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 LTE holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: ASGuide has 9 ratings behind it against 1, so its average is the more settled of the two.
ASGuide ships an update every 4 months, Mars LTE every 43 months. The most recent releases landed on September 1, 2026 and June 7, 2026 respectively.
| Parameter | ASGuide | Mars LTE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (9 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | 1 |
| Update frequency | Every 4 months — better | Every 43 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.4 — better |
| Further details — not scored | ||
| Size | 33 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Philip Perez | Taylan Atasoy |
Customer experience
ASGuide
Mars LTE
In-app purchases
ASGuide
No in-app purchases
Mars LTE
No in-app purchases
