# HachiCalendar2 Pro vs 測量 座標計算

The clearest difference is in-app purchases: 測量 座標計算 at none against HachiCalendar2 Pro's 2. 測量 座標計算 also leads on iOS requirement (14.1 vs 16.1). HachiCalendar2 Pro's advantage is review sentiment (50% vs 18%). On price, update cadence, ads and device support there is nothing between them.

HachiCalendar2 Pro costs $1.99 and 測量 座標計算 $1.99 up front. HachiCalendar2 Pro sells 2 one-off in-app purchases. 測量 座標計算 asks for nothing beyond the download.

HachiCalendar2 Pro ships an update fortnightly, 測量 座標計算 monthly. Both last shipped on November 6, 2026.

## The numbers

| Metric | HachiCalendar2 Pro | 測量 座標計算 |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[3.6 (27 ratings)](https://appshunter.io/ios/app/hachicalendar2-pro/id380105927/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | **50.0% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 44 MB | 6 MB |
| Requires iOS | 16.1 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [加明 严](https://appshunter.io/developer/372968860) | [youji okamura](https://appshunter.io/developer/834016142) |

## What reviewers say

### HachiCalendar2 Pro

[App page](https://appshunter.io/ios/app/hachicalendar2-pro/id380105927)

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:** macOS Compatibility, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| New Year Theme Pack | $1.99 | one-time |
| Weather Theme Pack | $2.99 | one-time |


### 測量 座標計算

[App page](https://appshunter.io/ios/app/id989856065)

This app simplifies construction surveying by calculating angles and distances using the reverse traverse method. Input known coordinates and it computes unknown points, eliminating the need for manual scientific calculator work on-site. Elevation calculations are also supported.

**Highlights:** Reverse traverse method calculations, Input XY coordinates, Calculate contained angle, Calculate distance, Elevation calculation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HachiCalendar2 Pro free?

HachiCalendar2 Pro costs $1.99, and also offers in-app purchases.

### Is 測量 座標計算 free?

測量 座標計算 costs $1.99, with no in-app purchases.

### Do HachiCalendar2 Pro or 測量 座標計算 have ads?

Neither HachiCalendar2 Pro nor 測量 座標計算 shows ads.

### Which is updated more often, HachiCalendar2 Pro or 測量 座標計算?

HachiCalendar2 Pro ships an update fortnightly, and 測量 座標計算 monthly. Most recently, HachiCalendar2 Pro was updated on November 6, 2026 and 測量 座標計算 on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*