# Chouseisan vs PDF Image Pro

The clearest difference is in-app purchases: Chouseisan at none against PDF Image Pro's 1. Chouseisan also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.6 vs 17.0). PDF Image Pro's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. PDF Image Pro sells 1 one-off in-app purchase. Chouseisan asks for nothing beyond the download.

Chouseisan ships an update fortnightly, PDF Image Pro every 5 weeks. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Chouseisan | PDF Image Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (40 ratings)](https://appshunter.io/ios/app/chouseisan/id6448971739/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Ad-supported | — |
| Size | 97 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mixtend Inc.](https://appshunter.io/developer/1687241996) | [YUJI Corp.](https://appshunter.io/developer/1721499403) |

## What reviewers say

### Chouseisan

[App page](https://appshunter.io/ios/app/chouseisan/id6448971739)

This free scheduling app simplifies organizing events for both personal and professional use. Easily create event pages and share URLs to coordinate with guests, making it a top choice for smooth itinerary planning.

**Highlights:** Streamlines event scheduling, Organizes private and business events, Easy event page creation, Shareable event URLs, Large user base in Japan

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

**In-app purchases:** none


### PDF Image Pro

[App page](https://appshunter.io/ios/app/pdf-image-pro/id6778379663)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $19.99 | one-time |


## Frequently asked questions

### Is Chouseisan free?

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

### Is PDF Image Pro free?

PDF Image Pro is free to download, with in-app purchases available.

### Do Chouseisan or PDF Image Pro have ads?

Chouseisan shows ads; PDF Image Pro does not.

### Which is updated more often, Chouseisan or PDF Image Pro?

Chouseisan ships an update fortnightly, and PDF Image Pro every 5 weeks. Most recently, Chouseisan was updated on October 21, 2026 and PDF Image Pro on October 7, 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.*