HachiCalendar2 Pro vs PDF AutoScroll
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Infinite vertical scrolling
- Events as to-dos
- Integrated AI assistant
- Floating countdown cards
- Time insights & analytics
- Quick voice input
- Gregorian/Lunar calendar support
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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
PDF AutoScroll
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.
- 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
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Hands off. Just read. With a single tap, smooth auto-scroll begins. From research papers, textbooks, and documents to sheet music, stay focused on reading. Keep your hands on your instrument and your eyes on the score. Read, rehearse, or present at your own pace with PDF AutoScroll. Key Features (Included) PDF reading and basic auto-scroll are included with the paid app. • Smooth auto-scroll, precise speed control, and up/down direction • Search, highlights, bookmarks, table of contents, and Dark Mode • Recent PDFs, favorite folders, and last-position restore Extra Features (Optional) • A different speed for each page and a start delay • Page margin trimming • Repeat, next-PDF playback, and saved PDF lists • Side-by-side PDF reading on iPad and Mac (In-App Purchase) Pro: annual subscription or one-time lifetime purchase. Eligible annual subscribers can try 7 days free. Price and offer are shown before purchase. Annual subscriptions renew automatically unless canceled in your Apple account settings. Bought the paid app or a bundle before version 1.3? You keep Pro without paying again. Use Restore Purchases if needed. Privacy • No account required. Your PDF files are read on your device. Device Support • iPhone, iPad, Mac • App and setup guide in 32 languages [Get started] Open a PDF, tap Play, and adjust the speed. Pause whenever you want. Notes Margin trimming changes only the reading view. Your original PDF and shared file stay unchanged. - Contact: help@paran.app - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://paran.app/privacy-policy/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 26, 2026 and October 25, 2026 respectively.
| Parameter | HachiCalendar2 Pro | PDF AutoScroll |
|---|---|---|
| Price | $1.99 — better | $5.49 |
| Rating | 3.5 (23 ratings) | 4.3 (7 ratings) — better |
| Positive reviews | 49.9% of reviews | 55.6% of reviews — better |
| Number of ratings | 23 — better | 7 |
| Update frequency | Fortnightly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 16.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 43 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 加明 严 | Paran |
Customer experience
HachiCalendar2 Pro
PDF AutoScroll
In-app purchases
HachiCalendar2 Pro
- New Year Theme Pack$1.99
- Weather Theme Pack$2.99
PDF AutoScroll
No in-app purchases
Questions
Is HachiCalendar2 Pro free?
Is PDF AutoScroll free?
Which has better reviews, HachiCalendar2 Pro or PDF AutoScroll?
Do HachiCalendar2 Pro or PDF AutoScroll have ads?
Which is updated more often, HachiCalendar2 Pro or PDF AutoScroll?
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