EhoCompass vs CatharSushi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EhoCompass
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This app is a compass that supports Japan’s “Ehomaki” tradition. In Japan, there is a custom of eating a thick sushi roll called “Ehomaki” during the seasonal event called “Setsubun,” which is celebrated every year on February 3. The tradition is to face a specific direction called “Eho,” make a wish, and eat the entire roll in silence to make the wish come true. On February 3, Ehomaki is sold in large quantities at food stores throughout Japan. This compass lets you check the “Eho” direction. (It automatically displays the Eho for that year.) It is a compass for checking the Eho direction when eating Ehomaki on Setsubun. As a bonus, it comes with an Oni (demon) mask for bean-throwing. The Eho direction is displayed automatically each year. It updates automatically every year. Rotate your smartphone or tablet to match the Eho direction, and check the direction to eat your Ehomaki. When you face the Eho, the words “Ehomaki Chance!” appear, and the compass glows. Eat your Ehomaki facing that direction. As a bonus, there is a convenient Oni mask for bean-throwing. During Setsubun, there is an event called “Mamemaki” (bean-throwing). A family member (usually the father) dresses up as an Oni (demon). You throw roasted soybeans (called “fukumame”) at the Oni while shouting “Oni wa soto! Fuku wa uchi!” This means “Demons out! Good fortune in!” and is meant to wish for family happiness. By tapping the “Oni Mask for Mamemaki” button, an Oni mask will appear. There are two types: red Oni and blue Oni. On tablets, it displays a full-face version, and on smartphones, a smaller version that only covers the eye area is available, so you can choose as you like. We also provide data for Oni masks that can be printed on paper, which you can download from the app guide and use. ■ Besides February 3, there are also summer Setsubun in August and autumn Setsubun in November.
CatharSushi
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Sushi will tell you a mysterious and fun experience! "Kataru Sushi" is a new type of app where AI-equipped sushi talks to the user's topic from a unique perspective. App Features: Sushi talks! AI sushi will develop a humorous and interesting story from the perspective of sushi for the topic entered by the user. Depending on the combination of the topic and sushi topping, it will be fun to see what kind of story will come out! Various sushi toppings Collect various sushi toppings and enjoy different stories according to each topping. If the sushi topping changes, the story will also change. Sushi Gacha Get new sushi toppings with a sushi gacha once a day! Get excited every day and increase your sushi collection. New sushi you get will come with a unique comment. Share it on SNS and enjoy it. Sushi Collection You can view detailed explanatory text of the sushi toppings you collected with the gacha. You can learn more about the characteristics of each sushi topping, such as the biological classification and ecology of the fish that are used as sushi toppings, their appearance, and taste. Now, let's start a new experience of talking with sushi and enjoying your collection with "Kataru Sushi"! Download now and see what sushi has to say to your question!
Screenshots
Verdict
The clearest difference is update cadence: CatharSushi at every 6 days against EhoCompass's every 9 months. 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.
EhoCompass ships an update every 9 months, CatharSushi every 6 days. Both last shipped on October 19, 2026.
| Parameter | EhoCompass | CatharSushi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 6 days — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 135 MB | 38 MB |
| Age rating | 4+ | 12+ |
| Developer | hiroyuki uchida | Mutsumi Kubo |
In-app purchases
EhoCompass
No in-app purchases
CatharSushi
No in-app purchases









