Chouseisan vs iino
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chouseisan
This free scheduling app simplifies event organization for both personal and professional use. Easily create event pages and share URLs with guests to coordinate schedules efficiently. It's a top scheduling service in Japan, designed for smooth itinerary planning.
- Streamlines event scheduling
- Easy event page creation
- Shareable event URLs
- Suitable for private and business use
- Large user base in Japan
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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.
iino
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iinoAPP is a smart daily planner and habit tracker built for high school and college students who want structure without feeling overwhelmed. SMART SCHEDULE BUILDER Add your tasks once. iinoAPP automatically builds your day by scheduling them into the study windows you define — so your plan fits your real life, not the other way around. It connects to your Apple Calendar to block off classes and existing events automatically. TASK MANAGEMENT Dump all your tasks in one place. iinoAPP sorts them by priority, due date, and urgency so you always know what to work on first. Tasks repeat daily so recurring work is always visible — and your completion history builds over time. HABIT
Screenshots
Verdict
The clearest difference is ads: iino at none against Chouseisan's shown. Chouseisan's advantage is update cadence (fortnightly vs every 4 months) and iOS requirement (15.6 vs 26.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Chouseisan ships an update fortnightly, iino every 4 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Chouseisan | iino |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (43 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 43 — better | — |
| Update frequency | Fortnightly — better | Every 4 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 99 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Mixtend Inc. | Saori Oshiro |
In-app purchases
Chouseisan
No in-app purchases
iino
No in-app purchases
