Mars Book vs Mars LTE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mars Book
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The Mars Book is an app that is dedicated for observing Mars which will make close approach in summer 2020. Mars will come close to Earth from September 2020 through October 2020. Closest approach will take place on October 6, 2020. Mars Book is a highly useful Mars observing app which will indicate the location of Mars visible in the sky. It shows you why Mars Close Approach will take place, and it is explained readily using animated illustrations and star charts at a viewpoint from outer Space. Mars Close Approaches taking place 23 times from the year 2003 through 2050 will be displayed and apparent retrograde motion of Mars will be displayed. Enjoy Mars Close Approach this summer with the Mars Book app!
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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See Mars the way Perseverance sees it. Mars LTE brings you the raw images sent back by the Perseverance rover from Jezero Crater: rocks, sand ripples, distant hills, the rover's own robotic arm and its shadow on the Martian ground. New photos appear as soon as they are published, and every sol since the February 2021 landing is just a few taps away. BROWSE BY SOL • Opens on the latest sol (Martian day) with photos • Step one sol back or forward, or jump straight to Latest • Pick any Earth date from the calendar and see what the rover captured that sol FILTER BY CAMERA • Navcam, Hazcam, Mastcam-Z, SuperCam, SHERLOC, SkyCam and more • See at a glance how many photos each camera took • Every thumbnail is labelled with the camera that took it FULL-SCREEN VIEWER • Swipe left and right through every photo of the sol • Pinch or double-tap to zoom into the smallest details • See the sol, camera and time each photo was taken • Save your favourites to Photos or share them with friends DESIGNED FOR IPHONE AND IPAD • Dark Mode with a deep-space theme • Pull to refresh • Fast, smooth scrolling with image caching Mars LTE has no ads and doesn't collect any personal data. Images courtesy of NASA/JPL-Caltech. Mars LTE is an independent app and is not affiliated with or endorsed by NASA or JPL.
Screenshots
Verdict
The clearest difference is update cadence: Mars Book at every 13 months against Mars LTE's every 27 months. Mars Book also leads on iOS requirement (9.0 vs 15.4). On price, ads, 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 Book ships an update every 13 months, Mars LTE every 27 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.
| Parameter | Mars Book | Mars LTE |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 13 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.4 |
| Further details — not scored | ||
| Size | 14 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Vixen Co.,Ltd. | Taylan Atasoy |
In-app purchases
Mars Book
No in-app purchases
Mars LTE
No in-app purchases
