Mars Book vs PickrickAR
Price, ratings, monetisation and update history for both apps, side by side โ 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!
PickrickAR
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We are exploring Augmented Reality as a way of making history visible in a location-based installation that recreates events that happened over 8 months in the 1960s, on a site that is now part of the Georgia Tech campus. On July 3 1964, the day after the Civil Rights Act was passed, George Willis, Jr, Albert L. Dunn, and Woodrow T. Lewis, all ministers and students at the Interdenominational Theological Center in Atlanta, attempted to gain entry to the Pickrick restaurant a notorious bastion of resistance to integration. The events of that day became the basis of the first lawsuit brought under that Act, filed by the legendary Constance Baker Motley of the NAACP Legal Defense Fund. Over the next few months the owner of the restaurant, future Georgia governor Lester Maddox, tried renaming the restaurant and changing the signage to evade the legal process, but a rotating group of non-violent protesters risked violence at the hands of armed mobs in order to repeatedly demonstrate that the restaurant was acting in violation of the Civil Rights Act. They eventually forced Maddox to close and so that on February 23 1965 Jack Googer, who worked on Peachtree Street, was able to peacefully sit down to lunch in the now renamed Gateway Cafeteria. Soon after, the restaurant was bought by Georgia Tech, and after about 50 years of use as an administration building and a campus police station, it has now been torn down to make way for the Eco-Commons. Our project is an exercise in using Augmented Reality storytelling to make the invisible visible in two ways. First we are working to project the image of the building and animated recreations of the protests onto the very changed current landscape. Second, we are attempting to beyond the usual protagonist of the story โ the segregationist fried chicken seller โ to bring into the non-violent protesters into the foreground.
Screenshots
Verdict
The clearest difference is update cadence: PickrickAR at every 2 months against Mars Book's every 13 months. Mars Book's advantage is iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท 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, PickrickAR every 2 months. The most recent releases landed on September 10, 2026 and December 16, 2025 respectively.
| Parameter | Mars Book | PickrickAR |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 13 months | Every 2 months โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 โ better | 11.0 |
| Further details โ not scored | ||
| Size | 14 MB | 1.4 GB |
| Age rating | 4+ | 4+ |
| Developer | Vixen Co.,Ltd. | Georgia Tech |
In-app purchases
Mars Book
No in-app purchases
PickrickAR
No in-app purchases








