# ラインズeライブラリアドバンス DL学習 vs Optical Path

The clearest difference is price: ラインズeライブラリアドバンス DL学習 at Free against Optical Path's $1.99. ラインズeライブラリアドバンス DL学習 also leads on update cadence (every 4 months vs every 12 months). Optical Path's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

ラインズeライブラリアドバンス DL学習 is free to download; Optical Path costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ラインズeライブラリアドバンス DL学習 ships an update every 4 months, Optical Path every 12 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ラインズeライブラリアドバンス DL学習 | Optical Path |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 12 months |
| Monetization | Free | — |
| Size | 73 MB | 6 MB |
| Requires iOS | **15.4** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lines Co.,Ltd.](https://appshunter.io/developer/726910209) | [坤 冉](https://appshunter.io/developer/1759927074) |

## What reviewers say

### ラインズeライブラリアドバンス DL学習

[App page](https://appshunter.io/ios/app/e-dl/id1532356314)

This app allows students to download drill problems, explanations, and assignments from the LINES e-Library Advance for offline study on their iPads. Learning progress is submitted when reconnected to the internet, enabling teachers to monitor student activity.

**Highlights:** Download drill problems and explanations, Offline study capability, Progress tracking for teachers, Ideal for take-home assignments, Supports iPad devices

**Features:** macOS Compatibility

**In-app purchases:** none


### Optical Path

[App page](https://appshunter.io/ios/app/optical-path/id6670541141)

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

**In-app purchases:** none


## Frequently asked questions

### Is ラインズeライブラリアドバンス DL学習 free?

ラインズeライブラリアドバンス DL学習 is free to download, with no in-app purchases.

### Is Optical Path free?

Optical Path costs $1.99, with no in-app purchases.

### Do ラインズeライブラリアドバンス DL学習 or Optical Path have ads?

Neither ラインズeライブラリアドバンス DL学習 nor Optical Path shows ads.

### Which is updated more often, ラインズeライブラリアドバンス DL学習 or Optical Path?

ラインズeライブラリアドバンス DL学習 ships an update every 4 months, and Optical Path every 12 months. Most recently, ラインズeライブラリアドバンス DL学習 was updated on October 2, 2026 and Optical Path on October 3, 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.*