Kai Garbage Sorting App vs Diamond X2 Lite
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kai Garbage Sorting App
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Have you ever been confused about when or how to dispose of garbage? Kai City has released an app that offers information about garbage. It includes the garbage collection schedule, the procedures for disposing of garbage, precautions when disposing of garbage, a garbage-sorting reference and frequently asked questions. You can check this information easily with your smartphone. The app is also available in English, Chinese (simplified) and Vietnamese for the foreign residents of our city. Please use this app for sorting your garbage and for recycling. Basic Functions ■ Garbage Collection Calendar You can check the three patterns of the garbage collection schedule on one screen at a glance: “Today and Tomorrow,” “Weekly,” and “Monthly.” ■ Alert Function You can receive alerts that tell you about scheduled garbage collection on the day before and day of collection. You can also set the time you want to receive these alerts. ■ Garbage Sorting Reference You can check the garbage disposal procedure for each item/material. You can find the item/material you are looking for quickly thanks to the app’s search function. ■ Garbage Disposal Procedures You can check the common items/materials and how to dispose of them by category. ■ Frequently Asked Questions You can check information that is frequently asked in a Q&A format. ■ Announcements You can check announcements concerning changes in the collection schedule and information on special events.
Diamond X2 Lite
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This is a trial version of the "Diamond X2" app. "Diamond X2" makes it easy to find the date and time of Diamond Fuji. By setting your "Viewpoint" to the Tokyo Metropolitan Building North Observatory or Tokyo Metropolitan Building South Observatory, you can experience and check all of its features without any restrictions. Select "List" from the "Viewpoint" view, tap "Select from Facilities, etc. (Built-in Data)," and select either the Tokyo Metropolitan Building North Observatory or Tokyo Metropolitan Building South Observatory. We would appreciate it if you would purchase "Diamond X2" after trying out this app. You can use GPS and web maps to create diamonds from any location. Diamonds other than Mt. Fuji are also possible. The app includes built-in data for over 1,200 mountains across Japan, as well as the Tokyo Metropolitan Building Observatory, Tokyo Tower, Tokyo Skytree, and more. Like "Yamaotaku for Mac (Yamac)," it takes into account the curvature of the Earth and atmospheric refraction to produce highly accurate results. It supports both Japanese and English display, automatically switching based on your iPhone's language setting. Location data files can be shared with Mac and Windows. Differences from "Diamond X" 1. Diamond-eligible locations are now marked with a checkmark in the location selection list. This allows you to quickly find diamond-eligible locations. Calculation speed has been significantly improved, allowing for stress-free use of this feature. 2. Mount Fuji can now be displayed from any location, regardless of whether diamonds are available. 3. The sun's altitude and shape reflect atmospheric refraction. (At low altitudes, the display will be vertically compressed.) 4. Sunrise and sunset times for a specified period can be displayed in a list. 5. Improved support for calculation errors. 6. Improved calculation accuracy. 7. Multi-core support significantly improves calculation performance. 8. Added the ability to transfer calculation results to other apps. 9. The UTC offset corresponding to the viewpoint's time zone can now be set automatically or manually, allowing support for time zones other than Japan. 10. Help is now available for some functions. (Tap the ? icon to display it) 11. Instructions for sharing files with your PC, such as myData, are now displayed. 12. More languages are now supported. 13. An on/off switch for transparency has been added. 14. Diamond misalignment display can now be selected between "m" and "degrees." 15. A new switch has been added to reset settings.
Screenshots
Verdict
The clearest difference is update cadence: Diamond X2 Lite at every 2 weeks against Kai Garbage Sorting App's every 6 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.
Kai Garbage Sorting App ships an update every 6 months, Diamond X2 Lite every 2 weeks. The most recent releases landed on September 19, 2026 and October 28, 2026 respectively.
| Parameter | Kai Garbage Sorting App | Diamond X2 Lite |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | G-Place Corporation | ICHIROU YONEYAMA |
In-app purchases
Kai Garbage Sorting App
No in-app purchases
Diamond X2 Lite
No in-app purchases
Questions
Is Kai Garbage Sorting App free?
Is Diamond X2 Lite free?
Do Kai Garbage Sorting App or Diamond X2 Lite have ads?
Which is updated more often, Kai Garbage Sorting App or Diamond X2 Lite?
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