# IDIY vs モチタン

The clearest difference is ads: IDIY at none against モチタン's shown. On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. IDIY sells 16 one-off in-app purchases and モチタン sells 16 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

IDIY ships an update fortnightly, モチタン weekly. The most recent releases landed on September 19, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | IDIY | モチタン |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (143 ratings)](https://appshunter.io/ios/app/ai/id6451048056/reviews)** |
| Number of ratings | — | **143** |
| Positive reviews | 48.8% of reviews | **52.6% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 70 MB | 368 MB |
| Requires iOS | 16 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ROUTINGSYSTEMS. INC](https://appshunter.io/developer/1149802102) | [Astran Inc.](https://appshunter.io/developer/1689875203) |

## What reviewers say

### IDIY

[App page](https://appshunter.io/ios/app/idiy/id1363811179)

Receive personalized English writing feedback from instructors worldwide. Improve your writing skills through daily prompts, custom submissions, and interactive messaging. Access free online English courses to supplement your learning.

**Highlights:** Personalized English writing feedback, Daily writing prompts, Upload your own English texts, Instructor messaging, Free online English courses, Progress tracking, Native and bilingual instructors

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

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CEFR A2レベル単語帳 | $4.99 | one-time |
| CEFR B2レベル単語帳 | $4.99 | one-time |
| CEFR C1レベル単語帳 | $4.99 | one-time |
| CEFR B1レベル単語帳 | $4.99 | one-time |
| CEFR A1レベル単語帳 | $4.99 | one-time |
| CEFR C2レベル単語帳 | $4.99 | one-time |
| 500ポイント | $39.99 | one-time |
| 700ポイント | $59.99 | one-time |
| 1000ポイント | $69.99 | one-time |
| 学べるプランライト50単語 3ヶ月 | $149.99 | one-time |
| 2000ポイント | $149.99 | one-time |
| 学べるプランスタンダードプラス50単語 3ヶ月 | $229.99 | one-time |
| 学べるプランライト100単語 3ヶ月 | $299.99 | one-time |
| 学べるプランスタンダードプラス100単語 3ヶ月 | $349.99 | one-time |
| 学べるプランライト200単語 3ヶ月 | $599.99 | one-time |
| 学べるプランスタンダードプラス200単語 3ヶ月 | $699.99 | one-time |


### モチタン

[App page](https://appshunter.io/ios/app/ai/id6451048056)

This app uses AI to create a fun and effective way to learn English vocabulary. It offers various game modes, including quests and real-time online battles, to help users memorize words through engaging challenges. Track your progress and compete with others to improve your English skills.

**Highlights:** AI-powered personalized learning, Gamified vocabulary quests, Real-time online battles, Progress tracking and visualization, Character collection and customization, Monthly rankings and rewards, Friend challenges and collaboration

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1ヶ月プラン | $9.99 | per month |
| 1ヶ月プラン（キャンペーン） | $9.99 | per month |
| 12ヶ月プラン（キャンペーン） | $49.99 | per year |
| 12ヶ月プラン | $59.99 | per year |
| ファミリープラン（キャンペーン） | $59.99 | per year |
| ファミリープラン | $69.99 | per year |
| コイン 1,000枚 | $0.49 | one-time |
| モチベイト原石×1 | $0.99 | one-time |
| コイン 5,000枚 | $2.99 | one-time |
| モチベイト原石×6 | $3.99 | one-time |
| モチベイト原石×12 | $5.99 | one-time |
| コイン 20,000枚 | $8.99 | one-time |
| モチベイト原石×30 | $12.99 | one-time |
| モチベイト原石×60 | $24.99 | one-time |
| モチベイト原石×85 | $29.99 | one-time |
| コイン 100,000枚 | $39.99 | one-time |


## Frequently asked questions

### Is IDIY free?

IDIY is free to download, with in-app purchases available.

### Is モチタン free?

モチタン is free to download, with in-app purchases available.

### Do IDIY or モチタン have ads?

モチタン shows ads; IDIY does not.

### Which is updated more often, IDIY or モチタン?

IDIY ships an update fortnightly, and モチタン weekly. Most recently, IDIY was updated on September 19, 2026 and モチタン on September 24, 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.*