Comparison

HachiCalendar2 Pro vs ShapeInfo Plus

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

HachiCalendar2 Pro

This app combines calendar, to-do lists, and an AI assistant for seamless organization. Manage events as tasks, utilize AI for scheduling, and keep key dates visible with floating countdown cards. It offers detailed time insights and supports multiple calendar systems.

Highlights
  • Infinite vertical scrolling
  • Events as to-dos
  • Integrated AI assistant
  • Floating countdown cards
  • Time insights & analytics
  • Quick voice input
  • Gregorian/Lunar calendar support
Features
Read full description

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

About

ShapeInfo Plus

This app calculates lengths, angles, and areas for various geometric shapes. It supports a wide range of 2D and 3D shapes, making it a handy tool for engineers and students.

Highlights
  • Calculate lengths, angles, and area
  • Calculate volume for 3D shapes
  • Supports various 2D and 3D shapes
  • User-friendly input for calculations
  • Immediate calculation results
Features
Read full description

Feature The ShapeInfo is useful application for calculating shape lengths, angles and area. You can get some calculated lengths and angles of the shape from choosing and entering values in the boxes upon the orange points. How to use 1. Choosing shape from the list. 2. Enter the value to the box upon the orange points. You can change the formation of the orange points by "NEXT" button (orange color) or tapping orange/gray point near the box that you are going to enter the value. 3. You can get calculated values of the shape, immediately after entering values. Applications - For the software developer, the mechanical engineer, the dynamics engineer and the surveying engineer. - Study mathematics for high school students. Functions - Calculate lengths, angles and the area for the right triangle, the triangle, the sector, the circle and ellipse. - Calculate volume for the triangular pyramid, the triangular prism, the circular cone, circular cylinder and the sphere. Shapes - Right triangle - Triangle - Sector - Circle - Ellipse - Triangular pyramid - Triangular prism - Circular cone - Circular cylinder - Oblique cutting circular cylinder - Sphere Disclaimer Appsys does not accept responsibility for any loss, which may arise from reliance on the software or materials published on this site.

Screenshots

HachiCalendar2 Pro4 screens
ShapeInfo Plus4 screens

Verdict

The call

The clearest difference is rating: ShapeInfo Plus at 4.6 against HachiCalendar2 Pro's 3.5. ShapeInfo Plus also leads on in-app purchases (none vs 2) and review sentiment (68% vs 50%). HachiCalendar2 Pro's advantage is update cadence (fortnightly vs every 6 months). On ratings volume, ads 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

CostPrice · In-app purchases · Ads · Monetization

HachiCalendar2 Pro costs $1.99 and ShapeInfo Plus $0.99 up front. HachiCalendar2 Pro sells 2 one-off in-app purchases. ShapeInfo Plus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ShapeInfo Plus holds the better App Store score, 4.6 against 3.5. Both are backed by a comparable volume of ratings — 22 and 31 respectively. Written reviews point the same way: 50% of HachiCalendar2 Pro's written reviews are positive against 68% of ShapeInfo Plus's.

UpkeepUpdate frequency

HachiCalendar2 Pro ships an update fortnightly, ShapeInfo Plus every 6 months. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 3 level
HachiCalendar2 Pro versus ShapeInfo Plus: the parameters behind the verdict, then further details
ParameterHachiCalendar2 ProShapeInfo Plus
Price$1.99$0.99 — better
Rating3.5 (22 ratings)4.6 (31 ratings) — better
Positive reviews49.7% of reviews67.9% of reviews — better
Number of ratings2231 — better
Update frequencyFortnightly — betterEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.113.0 — better
Further details — not scored
Size28 MB11 MB
Age rating4+4+
Developer加明 严Noriyasu Kutsuzawa

Customer experience

HachiCalendar2 Pro

All ratings22 ratings
Positive63.6%
Neutral4.5%
Negative31.8%
Written reviews340 reviews
Positive49.7%
Neutral11.2%
Negative39.1%

ShapeInfo Plus

All ratings31 ratings
Positive90.3%
Neutral3.2%
Negative6.5%
Written reviews28 reviews
Positive67.9%
Neutral14.3%
Negative17.9%

In-app purchases

2 purchases

HachiCalendar2 Pro

One-time2
  • New Year Theme Pack$1.99
  • Weather Theme Pack$2.99
None

ShapeInfo Plus

No in-app purchases

Questions

Is HachiCalendar2 Pro free?
HachiCalendar2 Pro costs $1.99, and also offers in-app purchases.
Is ShapeInfo Plus free?
ShapeInfo Plus costs $0.99, with no in-app purchases.
Which has better reviews, HachiCalendar2 Pro or ShapeInfo Plus?
ShapeInfo Plus is rated higher. HachiCalendar2 Pro averages 3.5 out of 5 from 22 ratings, while ShapeInfo Plus averages 4.6 from 31 ratings.
Do HachiCalendar2 Pro or ShapeInfo Plus have ads?
Neither HachiCalendar2 Pro nor ShapeInfo Plus shows ads.
Which is updated more often, HachiCalendar2 Pro or ShapeInfo Plus?
HachiCalendar2 Pro ships an update fortnightly, and ShapeInfo Plus every 6 months. Most recently, HachiCalendar2 Pro was updated on October 14, 2026 and ShapeInfo Plus on October 15, 2026.

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