# HachiCalendar2 Pro vs Grain SA

The clearest difference is price: Grain SA at Free against HachiCalendar2 Pro's $1.99. Grain SA also leads on in-app purchases (none vs 2) and iOS requirement (10.2 vs 16.1). On update cadence, ads and device support there is nothing between them.

Grain SA is free to download; HachiCalendar2 Pro costs $1.99 up front. HachiCalendar2 Pro sells 2 one-off in-app purchases. Grain SA asks for nothing beyond the download.

HachiCalendar2 Pro ships an update fortnightly, Grain SA monthly. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | HachiCalendar2 Pro | Grain SA |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[3.5 (22 ratings)](https://appshunter.io/ios/app/hachicalendar2-pro/id380105927/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 49.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 98 MB |
| Requires iOS | 16.1 | **10.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [加明 严](https://appshunter.io/developer/372968860) | [4SIGHT SYSTEMS (PTY) LTD](https://appshunter.io/developer/656095757) |

## 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

**In-app purchases (2)**

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


### Grain SA

[App page](https://appshunter.io/ios/app/grain-sa/id1665831580)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HachiCalendar2 Pro free?

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

### Is Grain SA free?

Grain SA is free to download, with no in-app purchases.

### Do HachiCalendar2 Pro or Grain SA have ads?

Neither HachiCalendar2 Pro nor Grain SA shows ads.

### Which is updated more often, HachiCalendar2 Pro or Grain SA?

HachiCalendar2 Pro ships an update fortnightly, and Grain SA monthly. Most recently, HachiCalendar2 Pro was updated on September 24, 2026 and Grain SA on September 8, 2026.

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