# オーディオブック（audiobook）耳で楽しむ読書アプリ vs D

The clearest difference is in-app purchases: D at none against オーディオブック（audiobook）耳で楽しむ読書アプリ's 19. D also leads on review sentiment (52% vs 30%) and rating (5.0 vs 4.8). オーディオブック（audiobook）耳で楽しむ読書アプリ's advantage is ratings volume (41 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. オーディオブック（audiobook）耳で楽しむ読書アプリ sells 19 in-app purchases, starting at $9.99 per month. D asks for nothing beyond the download.

D holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: オーディオブック（audiobook）耳で楽しむ読書アプリ has 41 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 30% of オーディオブック（audiobook）耳で楽しむ読書アプリ's written reviews are positive against 52% of D's.

オーディオブック（audiobook）耳で楽しむ読書アプリ ships an update every 2 weeks, D weekly. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | オーディオブック（audiobook）耳で楽しむ読書アプリ | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (41 ratings)](https://appshunter.io/ios/app/audiobook/id1357581573/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/d-lab/id6745396642/reviews)** |
| Number of ratings | **41** | 1 |
| Positive reviews | 29.6% of reviews | **52.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 106 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [OTOBANK Inc.](https://appshunter.io/developer/379565769) | [keigo matsumaru](https://appshunter.io/developer/1405989123) |

## What reviewers say

### オーディオブック（audiobook）耳で楽しむ読書アプリ

[App page](https://appshunter.io/ios/app/audiobook/id1357581573)

Listen to audiobooks with this app, featuring a vast library of novels, business books, and educational content. Enjoy hands-free reading during commutes or while doing chores. An optional subscription offers unlimited access to thousands of titles.

**Highlights:** Listen to purchased audiobooks, Display book charts and illustrations, Adjustable playback speed (0.5x to 4x), Library filtering and search, Offline playback support, Play subscription podcast content

**Features:** Siri integration, Vision Pro support

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 聴き放題月額プラン | $9.99 | per month |
| 聴き放題月額プラン | $9.99 | per month |
| 聴き放題年割プラン | $75.99 | per year |
| 聴き放題年割プラン | $75.99 | per year |
| 245コイン | $3.99 | one-time |
| 500コイン | $5.99 | one-time |
| 600コイン | $6.99 | one-time |
| 490コイン | $6.99 | one-time |
| 750コイン | $9.99 | one-time |
| 900コイン | $9.99 | one-time |
| 1,000コイン | $11.99 | one-time |
| 1,200コイン | $14.99 | one-time |
| 1,400コイン | $17.99 | one-time |
| 1,040コイン | $17.99 | one-time |
| 1,600コイン | $19.99 | one-time |
| 1,530コイン | $24.99 | one-time |
| 2,300コイン | $29.99 | one-time |
| 3,000コイン | $39.99 | one-time |
| 2,990コイン | $49.99 | one-time |


### D

[App page](https://appshunter.io/ios/app/d-lab/id6745396642)

Learn psychology with AI-powered video content and interactive tools. Access thousands of videos, get personalized advice from an AI assistant, and explore various expert-led sub-channels. This service helps you apply knowledge to enrich your life.

**Highlights:** AI-powered psychology video library, AI DaiGo assistant for questions, AI-generated podcasts and slides, Automated video chaptering, AI goal achievement coaching, Expert-led sub-channels

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

**In-app purchases:** none


## Frequently asked questions

### Is オーディオブック（audiobook）耳で楽しむ読書アプリ free?

オーディオブック（audiobook）耳で楽しむ読書アプリ is free to download, with in-app purchases available.

### Is D free?

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

### Which has better reviews, オーディオブック（audiobook）耳で楽しむ読書アプリ or D?

D is rated higher. オーディオブック（audiobook）耳で楽しむ読書アプリ averages 4.8 out of 5 from 41 ratings, while D averages 5.0 from 1 ratings.

### Do オーディオブック（audiobook）耳で楽しむ読書アプリ or D have ads?

Neither オーディオブック（audiobook）耳で楽しむ読書アプリ nor D shows ads.

### Which is updated more often, オーディオブック（audiobook）耳で楽しむ読書アプリ or D?

オーディオブック（audiobook）耳で楽しむ読書アプリ ships an update every 2 weeks, and D weekly. Most recently, オーディオブック（audiobook）耳で楽しむ読書アプリ was updated on September 23, 2026 and D on September 19, 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.*