Amida 2 vs RouletteBox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Amida 2
This app provides a digital version of the traditional Japanese lottery game, Amidakuji. It allows users to set up lotteries with 2 to 100 participants, automatically generating the crossing lines. Results can be viewed as an animation or a simple list.
- Amidakuji lottery game
- Supports 2-100 participants
- Automatic horizontal line generation
- Add lines later
- Animated or list results
Read full descriptionHide full description
Simple Amida Kuji. Amidakuji is a method of lottery.This App supports from 2 to 100 number of lines. Horizontal lines are automatically generated. Lines can be added later. Results are displayed as animation or as list.
RouletteBox
This app provides a simple roulette wheel for decision-making and random selection. Easily input your options, save and load custom lists, and spin the wheel to get a random result for games or everyday choices.
- Customizable roulette wheel
- Save and load data
- Random result generation
- Game and decision support
- Simple user interface
Read full descriptionHide full description
It's a simple RouletteBox app. Please use it for rice, game ordering, etc. === How to use === ① Click the edit button ② Enter the data and click the OK button ③ Click the pull button to start RouletteBox! About data ・ You can save the entered data by pressing the save button on the edit screen. ・ You can load the saved data from the load button on the edit screen. Please take self-responsibility for the result of RouletteBox.
Screenshots
Verdict
The clearest difference is review sentiment: Amida 2 at 67% against RouletteBox's 50%. RouletteBox's advantage is update cadence (every 6 months vs every 17 months). 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.
Amida 2 ships an update every 17 months, RouletteBox every 6 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.
| Parameter | Amida 2 | RouletteBox |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 17 months | Every 6 months — better |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | HIDEHIKO NAGANO | Mizuho Sakakibara |
Customer experience
Amida 2
RouletteBox
In-app purchases
Amida 2
No in-app purchases
RouletteBox
No in-app purchases







