チャットAI vs GroupTodo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
チャットAI
This AI-powered chatbot provides instant, accurate responses to any question. Easily accessible on your smartphone, it supports Japanese and helps improve your writing skills. Experience the power of AI for conversation and assistance.
- Advanced AI for instant answers
- Japanese language support
- Improve writing skills
- Easy smartphone access
- AI-powered conversations
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■ なんでも答えてくれる最先端のAI ■ スマホで簡単!日本語にも対応しているので安心です ■ 話題沸騰!AIとトークができる チャットボット「Chat AI」で、AIのパワーを体験しよう! AIの支援を借りて、すぐに正確な応答を得て、文章力を向上させましょう。 このアプリは、AIを活用したチャットアプリです。スマホで簡単に利用でき、日本語にも対応しています。人工知能がどんな質問にも答えてくれます。
GroupTodo
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Organize your daily to-dos with ease. Share them with others whenever you need. GroupTodo is a simple to-do app that works well for personal use. You can organize shopping lists, chores, schedules, travel plans, work tasks, and more by group. Start by using it as your own personal to-do list. When you want to share a list with family, friends, or a team, you can share the same group as it is. There’s no need to switch between separate apps for personal and shared tasks. You can add comments and photos to each task, making it easy to keep notes, details, and follow-ups in one place. When using a shared group, quick messages like “Can you buy this?” or “Done” stay right inside the related task. GroupTodo also supports due date reminders and update notifications. Manage what you need to do today, what you don’t want to forget, and what you want to work on with others. Recommended for people who want to: ・Use a simple, easy-to-read to-do app ・Organize shopping, chores, schedules, and work tasks ・Share lists with family or friends when needed ・Keep notes, photos, and conversations for each task ・Manage both personal and shared tasks in one app Main features: ・Organize tasks by group ・Use as a personal to-do list ・Share groups whenever you need ・Add comments and photos to each task ・Unread badges for new comments ・Due date reminders: on the day, the day before, and overdue notifications ・Update notifications for added and completed tasks ・iCloud sync, iPhone and iPad support From personal to-dos to shared planning. Make your tasks smoother with GroupTodo.
Screenshots
Verdict
The clearest difference is in-app purchases: GroupTodo at none against チャットAI's 1. GroupTodo also leads on update cadence (every 4 days vs every 3 weeks). チャットAI's advantage is ads (none vs shown) and iOS requirement (14.0 vs 26.0). 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. チャットAI sells 1 in-app purchase, starting at $2.99 per 7 days. GroupTodo asks for nothing beyond the download.
チャットAI ships an update every 3 weeks, GroupTodo every 4 days. The most recent releases landed on October 13, 2026 and October 9, 2026 respectively.
| Parameter | チャットAI | GroupTodo |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 57.1% of reviews | — |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 11 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Akihiro Kokubo | nanawork |
In-app purchases
チャットAI
- Premium3 Days trial$2.997 Days
GroupTodo
No in-app purchases









