# 디지털교과서 2018 vs Solve

The clearest difference is ads: 디지털교과서 2018 at none against Solve's shown. 디지털교과서 2018 also leads on monetization model (free vs ad-supported) and iOS requirement (15.6 vs 17.6). Solve's advantage is review sentiment (86% vs 52%) and update cadence (every 4 days vs every 2 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

디지털교과서 2018 ships an update every 2 months, Solve every 4 days. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 디지털교과서 2018 | Solve |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (10 ratings)](https://appshunter.io/ios/app/2018/id1343756578/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 52.4% of reviews | **85.7% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | **Free** | Ad-supported |
| Size | 126 MB | 154 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [한국교육학술정보원](https://appshunter.io/developer/376298432) | [Testbank Inc.](https://appshunter.io/developer/1489897656) |

## What reviewers say

### 디지털교과서 2018

[App page](https://appshunter.io/ios/app/2018/id1343756578)

Access and study digital textbooks on your PC and mobile devices. Log in with your EduNet account to use your digital textbooks anytime, anywhere. Supports offline learning after downloading content.

**Highlights:** Digital textbook access on PC and mobile, EduNet account login, Offline learning support, Content download for offline use, Optimized for high-resolution displays, Optional microphone and camera access

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

**In-app purchases:** none


### Solve

[App page](https://appshunter.io/ios/app/solve-study-notes/id1629592780)

This app offers free past exam papers for various subjects and allows users to access popular workbooks digitally. It features automatic grading and integrated note-taking for efficient studying, eliminating the need to flip between books and answer keys.

**Highlights:** Free past exam papers, Digital workbooks, Automatic grading, Integrated note-taking, Problem and solution on one screen, iPad and Apple Pencil support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 디지털교과서 2018 free?

디지털교과서 2018 is free to download, with no in-app purchases.

### Is Solve free?

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

### Do 디지털교과서 2018 or Solve have ads?

Solve shows ads; 디지털교과서 2018 does not.

### Which is updated more often, 디지털교과서 2018 or Solve?

디지털교과서 2018 ships an update every 2 months, and Solve every 4 days. Most recently, 디지털교과서 2018 was updated on September 21, 2026 and Solve on September 22, 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.*