月の満ち欠けAR vs Stuudy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
月の満ち欠けAR
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Explanation: An app that displays the waxing and waning of the moon, which are learned in middle school science classes, in Augmented Reality* (AR). It is very difficult to view the waxing and waning of the moon in a plane view. Therefore, we superimposed a 3D model onto a plan view (hereafter worksheet) from which you can view the sun, moon, and earth from the North Pole. By moving the tablet to the observation point, you can investigate how the moon waxes and wanes. Main functions - The 3D models of the sun, moon, and earth are superimposed onto the worksheet - Select and display the position of the moon at eight locations - Rotate the moon around the earth - Display the actual surfaces of the earth and moon (continents, seas, or craters) - Display the sun, earth, and moon at their actual sizes and positions - Display the earth in a semi-transparent by moving the tablet as written. - Display the moon in its current location as viewed from the earth ■Method of use (1) Start the “Waxing and waning of the moon AR” app. (2) When you tap the [MarkerDownload] button, you will be taken to the following website: https://sites.google.com/site/jouetsuargroups/home/moon/moonarios From there, download the worksheet and print it on A4 paper size. You can also download and print the worksheet directly from the website without using the app. (3) Tap the [START] button. When the camera starts, point to the Earth’s North Pole with the [kita] marker. □Functions ●Change the display position of the moon On the right side of the screen, there are the following buttons: “all,” “A,” “B,” “C,” “D,” “E,” “F,” “G,” “H,” and “orbit”. By tapping any one of these buttons, you can change the display position of the moon. The “all” button displays all eight positions simultaneously. With the “orbit” button, you can start/stop rotation around the earth. ●Display the position of the observer on the earth When the display position is set to “A”, “B”, “C”, “D”, “E”, “F”, “G”, “H” or “orbit,” red circles are displayed on the earth. This indicates the position on the earth from which the currently displayed moon can be observed from a south view. ● Change the display of the moon and earth’s surfaces “surface” button (left side of screen): Tapping this button displays the craters, continents, and seas on the surface of the moon or earth. In default setting, the earth is displayed in blue color, while the moon is displayed in yellow or black or a combination thereof in order to better understand the waxing or waning of the moon. ●Display the actual ratio of the sun, moon, and earth “real” button (left side of screen): Tapping this button displays the actual size and position. (The sun disappears) The default settings display the sun, moon, and earth’s size and position on a scale that the waxing and waning are easy to understand. For this reason, it is easy to cause solar eclipses and lunar eclipses. ●Make the earth semi-transparent “transp.” button (left side of screen): By tapping this button, you can display the earth in a semi-transparent form. To understand the phases of the moon, it is sometimes necessary to shift viewpoint to focusing on the moon’s surfaces, which requires superimposing the moon onto the earth. For a better display of the moon, make the earth semi-transparent. At this time, this function prevents the moon at the back of the screen from disappearing behind the earth. ● Display the current position of the moon as seen from earth “view’ button (left side of screen): By tapping this button, you can view the moon in a separate window on the left of the screen. When the display position of the moon is set to “A”, “B”, “C”, “D”, “E”, “F”, “G”, “H” or “orbit,” this image can be displayed in a separate window. ■Disclaimer (1) This may not run correctly depending on the iOS version or model. (2) The creator shall not bear any responsibility for any damage caused to the user when downloading the app.
Stuudy
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Stuudy is a study planning app that clearly tells you what to do today simply by setting the page range and deadline for your textbooks or study materials. Once you register the page range and deadline for a textbook, Stuudy automatically calculates the pages you should work on today. Just follow the pages shown and record your progress to keep studying in a planned and manageable way. Even if you could not study as planned on a certain day, that is okay. Stuudy recalculates your plan and adjusts today’s study amount based on your current progress. “I want to finish this textbook before my exam.” “I don’t know how far I should study each day.” “I don’t know how to catch up after skipping a day.” Stuudy supports this kind of study management in a simple, page-based way. 【Main Features】 ・Automatically calculates today’s pages Stuudy shows the pages you should work on today based on the page range and deadline of your textbook. ・Recalculates your plan even if you fall behind If you do not progress as planned, Stuudy automatically adjusts your study plan based on the remaining pages and deadline. ・Manage pages for each study material Register the material name, start page, end page, start date, and deadline to manage multiple textbooks and workbooks together. ・Record your progress Record completed pages and check whether you are ahead of or behind your plan. ・Supports multiple study rounds You can manage not only the first round, but also second and third rounds. This is useful for review, exam preparation, and certification study. ・Adjust study amounts by holidays and weekdays Set holidays and study ratios for each day of the week to create a plan that fits your lifestyle. ・Visualize progress with graphs Check your study progress with graphs. Seeing your daily progress helps you stay motivated. ・Reminder notifications Stuudy can remind you so you do not forget today’s study. ・Widget / Live Activity support Quickly check today’s progress from your Home Screen or Lock Screen. 【Recommended For】 ・People who want to study textbooks and workbooks in a planned way ・People preparing for entrance exams, school exams, or certification exams ・People who want today’s study pages to be decided automatically ・People who find it difficult to rebuild their plan after falling behind ・People who want to visualize their study progress with graphs ・People who want to manage multiple study materials at once Make your textbook study more organized with Stuudy. Clarify today’s pages and make daily study easier to continue.
Screenshots
Verdict
The clearest difference is iOS requirement: 月の満ち欠けAR at 9.1 against Stuudy's 17.0. 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.
| Parameter | 月の満ち欠けAR | Stuudy |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 53 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroyuki Nakano | Yuta Nishimatsu |
In-app purchases
月の満ち欠けAR
No in-app purchases
Stuudy
No in-app purchases









