HachiCalendar2 Pro is made and published by 加明 严. AppBrain is an independent app data site and isn't affiliated with 加明 严. The app name, icon, screenshots and description belong to 加明 严 and are shown as published on the App Store.
AppBrain's verdict
Established- Best rank
- #27
- Top Paid, Japan
- Rating on App Store
- 3.52
- 23 ratings
- Last updated
- August 10, 2026
It doesn't have enough ratings yet to judge what users think. Its best ranking is #27 in Top Paid, Productivity in Japan.
Rankings
App Store top charts- Highest rank
- #27
- Chart
- Top Paid
- Productivity
- Country
- Japan
App Store Rankings for HachiCalendar2 Pro
Top rankings
| Rank | Country | Category | List |
|---|---|---|---|
| 27 | Japan | Productivity | Top Paid |
Ranking history in Japan
Competitors
Similar apps and more from 加明 严Alternatives to HachiCalendar2 Pro
More from 加明 严
Releases
Updates seen on the App Store- Version
- 11.7.0
- Launched
- July 2010
No changelog data
User feedback
Ratings and reviews on the App StoreComments on HachiCalendar2 Pro for iOS
We don't have enough comments to show example comments. Please check back later.
Technology
Found in the app by AppBrain- Price
- $1.99
- App size
- 28.0 MB
- Content rating
- Everyone
Technologies used by HachiCalendar2 Pro
About the app and developer
About HachiCalendar2 Pro
HachiCalendar2 Pro is a productivity app developed by 加明 严.
User Ratings
HachiCalendar2 Pro is rated 3.52 out of 5 stars. The rating is based on 23 ratings.
App Information
HachiCalendar2 Pro costs $1.99. The app size is 27.99 MB. The latest version available is 11.7.0. The last update was on August 10, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2010.
Developer information for 加明 严
Address:
Store listing
By 加明 严, from the App Store
Screenshots by 加明 严, from the the App Store listing
Description by 加明 严 Written by the developer, not by AppBrain. Click to read.
Your faithful friend, making life more organized.
15 years, over 1 million users.
Contact: hachi.iphone@gmail.com
Scroll endlessly through your past and future.
Turn events into checkable to-dos.
AI helps you create and analyze events naturally.
Floating cards keep countdowns and key dates always in view.
Hachi Calendar combines Calendar + To-Do + AI Assistant + Floating Date Cards into one powerful, seamless interface.
Browse vertically without switching views.
Check off events like tasks.
Let AI create, complete, and analyze your schedule.
Supports Gregorian / Lunar calendars, seasonal terms, and traditional date references to help you plan smarter.
####Key Features
Infinite Vertical Scrolling
Browse past and future smoothly without switching pages.
One-Page Operation Flow
View, add, drag, copy, move, and complete — all on one screen.
Events as To-Dos
Mark events as completed and keep a record of progress.
Integrated AI Assistant
Create events from natural speech or text; AI parses times, reminders, repeats, and provides summaries, analytics, and free-time suggestions.
Floating Countdown Cards
Display countdowns, elapsed days, or key dates.
Auto-highlights when deadlines approach.
Time Insights & Analytics
Discover active hours, time usage trends, and weekday/weekend differences.
Quick Voice Input
Long press to record → real-time transcription → release to create.
Countdown indicator before recording ends.
Smart Gap & Conflict Detection
Detects available slots and prevents overlapping events.
Key Dates Always Visible
Floating cards + countdowns + quick jumps keep important days front and center.
Emojis & Categories
Add emojis and tags for quick visual identification.
Multiple Reminders
Standard alerts, countdown highlights, and completion feedback.
Privacy First
Local analytics only — no data uploaded.
####Typical Use Cases
Say “Review meeting at 3 PM Friday, remind me 10 minutes before” → instantly created.
Check off daily study or workout goals.
Keep countdowns for exams, trips, or milestones visible.
Ask AI for “next week’s free time” to schedule meetings.
Review your time structure with automatic visual insights.
Track lunar birthdays or seasonal events easily.
####Highlights
True one-page vertical scrolling experience
Events double as to-dos
AI-powered creation, analysis, and scheduling suggestions
Floating cards for countdowns & key dates
Long-press voice input with dynamic countdown
Supports Gregorian / Lunar / Solar Terms / Almanac
Time usage insights and rhythm optimization
Lightweight, fast, and information-dense
####Perfect For
Users who want to manage schedules and tasks in one screen
Heavy planners who love AI or quick voice entry
Those who follow both modern and traditional calendars
Anyone who needs countdowns and visual goal tracking
People who want to analyze time usage to optimize their routines
15 years, over 1 million users.
Contact: hachi.iphone@gmail.com
Scroll endlessly through your past and future.
Turn events into checkable to-dos.
AI helps you create and analyze events naturally.
Floating cards keep countdowns and key dates always in view.
Hachi Calendar combines Calendar + To-Do + AI Assistant + Floating Date Cards into one powerful, seamless interface.
Browse vertically without switching views.
Check off events like tasks.
Let AI create, complete, and analyze your schedule.
Supports Gregorian / Lunar calendars, seasonal terms, and traditional date references to help you plan smarter.
####Key Features
Infinite Vertical Scrolling
Browse past and future smoothly without switching pages.
One-Page Operation Flow
View, add, drag, copy, move, and complete — all on one screen.
Events as To-Dos
Mark events as completed and keep a record of progress.
Integrated AI Assistant
Create events from natural speech or text; AI parses times, reminders, repeats, and provides summaries, analytics, and free-time suggestions.
Floating Countdown Cards
Display countdowns, elapsed days, or key dates.
Auto-highlights when deadlines approach.
Time Insights & Analytics
Discover active hours, time usage trends, and weekday/weekend differences.
Quick Voice Input
Long press to record → real-time transcription → release to create.
Countdown indicator before recording ends.
Smart Gap & Conflict Detection
Detects available slots and prevents overlapping events.
Key Dates Always Visible
Floating cards + countdowns + quick jumps keep important days front and center.
Emojis & Categories
Add emojis and tags for quick visual identification.
Multiple Reminders
Standard alerts, countdown highlights, and completion feedback.
Privacy First
Local analytics only — no data uploaded.
####Typical Use Cases
Say “Review meeting at 3 PM Friday, remind me 10 minutes before” → instantly created.
Check off daily study or workout goals.
Keep countdowns for exams, trips, or milestones visible.
Ask AI for “next week’s free time” to schedule meetings.
Review your time structure with automatic visual insights.
Track lunar birthdays or seasonal events easily.
####Highlights
True one-page vertical scrolling experience
Events double as to-dos
AI-powered creation, analysis, and scheduling suggestions
Floating cards for countdowns & key dates
Long-press voice input with dynamic countdown
Supports Gregorian / Lunar / Solar Terms / Almanac
Time usage insights and rhythm optimization
Lightweight, fast, and information-dense
####Perfect For
Users who want to manage schedules and tasks in one screen
Heavy planners who love AI or quick voice entry
Those who follow both modern and traditional calendars
Anyone who needs countdowns and visual goal tracking
People who want to analyze time usage to optimize their routines