Chouseisan vs PDF Image Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chouseisan
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.
- Streamlines event scheduling
- Organizes private and business events
- Easy event page creation
- Shareable event URLs
- Large user base in Japan
Read full descriptionHide full description
Chouseisan is a free and easy to use scheduling application that streamlines scheduling. By streamlining scheduling, you can organize all kinds of events smoothly. ■ One of the largest scheduling services in Japan This is the official application of Chouseisan, one of the largest scheduling applications in Japan with over 8 million monthly active users. ■ Streamlines scheduling for all types of events The simple user experience makes it easy for anyone to use, and it can be used for a wide range of itinerary coordination from private to business situations. ■ Just share the URL with your guests to schedule an event. You can create an event page easily by simply entering the name of the event and possible dates. In addition, the URL of the event page can be shared with guests via chat, etc., for easy scheduling. ■ Completely free of charge Chouseisan is completely free of charge.
PDF Image Pro
Read full descriptionHide full description
PDF Image Pro is the simple way to convert between PDFs and images. ● Turn PDFs into clear images - Import a PDF and preview its pages. - Pick the pages you need and save as JPEG or PNG. - Choose quality, then export to Photos, Files, Share, or ZIP. ● Combine images into one PDF - Select photos or screenshots and set the order. - Build a clean PDF and share it right away. ● Finish fast—even the first time - Try the demo PDF for an instant first conversion. - See your default format and quality chips on Home. - Jump between the PDF and Images tabs for the job you need. ● Come back to history anytime - Keep recent conversions on your device. - Swipe to share, export, reconvert, or delete. - Resend files while they are still available. ● Built for real moments - Proofs, homework, and scans that need the right format - Chat or email attachments that must be PDF or images - Multiple pages that should become one document ● Prefer no ads? - The app is free to use with ads. - A one-time Remove Ads purchase turns off banners and conversion success ads. - Conversion works the same either way. No account required—everything stays on your iPhone.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Chouseisan | PDF Image Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (40 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 40 — better | — |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 97 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Mixtend Inc. | YUJI Corp. |
In-app purchases
Chouseisan
No in-app purchases
PDF Image Pro
- Remove Ads$19.99
