# MDX Reader vs 1secDic

The clearest difference is ads: MDX Reader at none against 1secDic's shown. 1secDic's advantage is device support (4 vs 2). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. MDX Reader sells 1 one-off in-app purchase and 1secDic sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for MDX Reader against 5.0 for 1secDic. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 2 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | MDX Reader | 1secDic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/mdx-readerpersonal-dictionary/id6756669176/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/1secdic-mdictepwing-reader/id6759234827/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 27 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Yulei Duan](https://appshunter.io/developer/1860295257) | [editoy Inc.](https://appshunter.io/developer/1191725361) |

## What reviewers say

### MDX Reader

[App page](https://appshunter.io/ios/app/mdx-readerpersonal-dictionary/id6756669176)

This app allows you to build and manage your personal dictionary using MDX/MDD files. It offers powerful offline search, smart favorites, and customizable appearance for a personalized reference experience.

**Highlights:** Unlimited dictionary management, Fast full-text search, Smart favorites for saved words, Customizable appearance, Offline functionality, Cross-dictionary search

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MDX Premium (Lifetime) | $3.99 | one-time |


### 1secDic

[App page](https://appshunter.io/ios/app/1secdic-mdictepwing-reader/id6759234827)

This app is a high-performance dictionary reader for language enthusiasts, offering instant searches across large EPWING and MDict collections. It features a customizable interface, AI chat capabilities, and multi-platform support.

**Highlights:** Blazing-Fast EPWING/MDict Engine, AI Chat powered by Apple Intelligence, Multi-Platform Support (macOS, iOS, iPadOS, Apple Watch), Retro Aesthetic (Vintage Mode), Precise Rendering of special characters, Instant Access with search history and bookmarks, Integrated Text-to-Speech (TTS)

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Unlock (All Devices) | $7.99 | one-time |


## Frequently asked questions

### Is MDX Reader free?

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

### Is 1secDic free?

1secDic is free to download, with in-app purchases available.

### Which has better reviews, MDX Reader or 1secDic?

MDX Reader and 1secDic are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do MDX Reader or 1secDic have ads?

1secDic shows ads; MDX Reader does not.

### Which is updated more often, MDX Reader or 1secDic?

MDX Reader ships an update every 2 weeks, and 1secDic every 2 weeks. Most recently, MDX Reader was updated on October 7, 2026 and 1secDic on October 7, 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.*