# 絵本ナビ：365日毎日新しい絵本に出会える vs SoroTouch Mental Calculation

The clearest difference is rating: 絵本ナビ：365日毎日新しい絵本に出会える at 4.7 against SoroTouch Mental Calculation's 2.3. 絵本ナビ：365日毎日新しい絵本に出会える also leads on review sentiment (46% vs 32%) and update cadence (every 3 weeks vs every 2 months). SoroTouch Mental Calculation's advantage is in-app purchases (none vs 2). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 絵本ナビ：365日毎日新しい絵本に出会える sells 2 in-app purchases, starting at $9.99 per month. SoroTouch Mental Calculation asks for nothing beyond the download.

絵本ナビ：365日毎日新しい絵本に出会える holds the better App Store score, 4.7 against 2.3. Both are backed by a comparable volume of ratings — 145 and 39 respectively. Written reviews point the same way: 46% of 絵本ナビ：365日毎日新しい絵本に出会える's written reviews are positive against 32% of SoroTouch Mental Calculation's.

絵本ナビ：365日毎日新しい絵本に出会える ships an update every 3 weeks, SoroTouch Mental Calculation every 2 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 絵本ナビ：365日毎日新しい絵本に出会える | SoroTouch Mental Calculation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (145 ratings)](https://appshunter.io/ios/app/365/id808747353/reviews)** | [2.3 (39 ratings)](https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190/reviews) |
| Number of ratings | **145** | 39 |
| Positive reviews | **45.8% of reviews** | 32.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 15 MB | 460 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社絵本ナビ](https://appshunter.io/developer/808747356) | [SoroTouch Co., Ltd.](https://appshunter.io/developer/927820962) |

## What reviewers say

### 絵本ナビ：365日毎日新しい絵本に出会える

[App page](https://appshunter.io/ios/app/365/id808747353)

Discover new picture books daily with trial reads and a subscription for unlimited access to a vast library of stories, videos, audiobooks, and more. This app supports parents in choosing the perfect books for children from infants to elementary school age.

**Highlights:** Full page trial reads, Curated recommendations, Unlimited reading subscription, Picture book videos, Audiobooks, Kids view mode, In-app shopping

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EhonNavi Premium Service | $9.99 | per month |
| EhonNavi Premium Yearly | $99.99 | per year |


### SoroTouch Mental Calculation

[App page](https://appshunter.io/ios/app/sorotouch-mental-calculation/id1153930190)

This app teaches abacus method mental calculation using patented imaging technology. Designed for children aged 5-8, it offers games and rankings to enhance math skills through daily practice. It requires membership registration via a web portal.

**Highlights:** Abacus method mental calculation, Imaging skills training, Daily missions and games, Progress tracking and rankings, Visible and Invisible modes, Audio and rhythm-based learning

**In-app purchases:** none


## Frequently asked questions

### Is 絵本ナビ：365日毎日新しい絵本に出会える free?

絵本ナビ：365日毎日新しい絵本に出会える is free to download, with in-app purchases available.

### Is SoroTouch Mental Calculation free?

SoroTouch Mental Calculation is free to download, with no in-app purchases.

### Which has better reviews, 絵本ナビ：365日毎日新しい絵本に出会える or SoroTouch Mental Calculation?

絵本ナビ：365日毎日新しい絵本に出会える is rated higher. 絵本ナビ：365日毎日新しい絵本に出会える averages 4.7 out of 5 from 145 ratings, while SoroTouch Mental Calculation averages 2.3 from 39 ratings.

### Do 絵本ナビ：365日毎日新しい絵本に出会える or SoroTouch Mental Calculation have ads?

Neither 絵本ナビ：365日毎日新しい絵本に出会える nor SoroTouch Mental Calculation shows ads.

### Which is updated more often, 絵本ナビ：365日毎日新しい絵本に出会える or SoroTouch Mental Calculation?

絵本ナビ：365日毎日新しい絵本に出会える ships an update every 3 weeks, and SoroTouch Mental Calculation every 2 months. Most recently, 絵本ナビ：365日毎日新しい絵本に出会える was updated on November 11, 2026 and SoroTouch Mental Calculation on November 2, 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.*