# HachiCalendar2 Pro vs PDF AutoScroll

The clearest difference is rating: PDF AutoScroll at 4.3 against HachiCalendar2 Pro's 3.5. PDF AutoScroll also leads on in-app purchases (none vs 2). HachiCalendar2 Pro's advantage is price ($1.99 vs $5.49) and ratings volume (23 vs 7). On review sentiment, update cadence, ads and device support there is nothing between them.

HachiCalendar2 Pro costs $1.99 and PDF AutoScroll $5.49 up front. HachiCalendar2 Pro sells 2 one-off in-app purchases. PDF AutoScroll asks for nothing beyond the download.

PDF AutoScroll holds the better App Store score, 4.3 against 3.5. Both are backed by a comparable volume of ratings — 23 and 7 respectively. Written reviews point the same way: 50% of HachiCalendar2 Pro's written reviews are positive against 56% of PDF AutoScroll's.

HachiCalendar2 Pro ships an update fortnightly, PDF AutoScroll every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | HachiCalendar2 Pro | PDF AutoScroll |
| --- | --- | --- |
| Price | **$1.99** | $5.49 |
| Rating | [3.5 (23 ratings)](https://appshunter.io/ios/app/hachicalendar2-pro/id380105927/reviews) | **[4.3 (7 ratings)](https://appshunter.io/ios/app/pdf-autoscroll/id6743747935/reviews)** |
| Number of ratings | **23** | 7 |
| Positive reviews | 49.9% of reviews | **55.6% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 43 MB | 4 MB |
| Requires iOS | **16.1** | 16.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [加明 严](https://appshunter.io/developer/372968860) | [Paran](https://appshunter.io/developer/1698510581) |

## 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 |


### PDF AutoScroll

[App page](https://appshunter.io/ios/app/pdf-autoscroll/id6743747935)

Effortlessly read long documents, papers, or sheet music with smooth, hands-free auto-scrolling. This PDF viewer enhances focus by eliminating manual page turns and offers features like dark mode, highlighting, and quick navigation.

**Highlights:** Smooth auto-scrolling with speed control, Dark mode for comfortable reading, Highlighting and instant jump to highlights, Table of contents for quick navigation, Search functionality, Bookmarks and automatic last-position restore, Recent PDF reopening

**Features:** 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 PDF AutoScroll free?

PDF AutoScroll costs $5.49, with no in-app purchases.

### Which has better reviews, HachiCalendar2 Pro or PDF AutoScroll?

PDF AutoScroll is rated higher. HachiCalendar2 Pro averages 3.5 out of 5 from 23 ratings, while PDF AutoScroll averages 4.3 from 7 ratings.

### Do HachiCalendar2 Pro or PDF AutoScroll have ads?

Neither HachiCalendar2 Pro nor PDF AutoScroll shows ads.

### Which is updated more often, HachiCalendar2 Pro or PDF AutoScroll?

HachiCalendar2 Pro ships an update fortnightly, and PDF AutoScroll every 2 weeks. Most recently, HachiCalendar2 Pro was updated on October 27, 2026 and PDF AutoScroll on October 25, 2026.

---

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