# TREK!

> TREK! (iPhone/iPad app by NIKKAN KOGYO SHIMBUN, LTD..)

- Source: https://appshunter.io/ios/app/trek/id1597415136 (this page in markdown: same URL + `.md`)
- Developer: [NIKKAN KOGYO SHIMBUN, LTD.](https://appshunter.io/developer/1490400808)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 52 MB
- Languages: American English, Japanese
- Released: 2022-02-09
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/trek/id1597415136/reviews.md

## What is TREK!?

▼▼「TREK!」▼▼
It is a dedicated application for reading articles purchased on website "TREK!" operated by Nikkan Kogyo Shimbun. The website "TREK!" sells newspaper/magazine articles, images, seminar videos, etc. which are published by Nikkan Kogyo Shimbun. You may make purchase of any materials after adding them to the cart on the website.  Once the payment procedures is completed, you may view the purchased items with this dedicated application. 



The website "TREK!" mainly sells articles of the manufacturing industry, such as automobiles, industrial robots, machine tools, electrical and electronic parts manufacturers, digital technology, materials and chemical related enterprises etc. We are providing exclusive articles that would not be found on any general newspapers. We believe it will help you to grasp the one step ahead trends of industrial world.


## Version history (last 5 releases)

### 8.2.13 — 2026-08-01

- Update the entire app UI.
- Update supported iOS version to 15 or over.

### 7.16.1 — 2023-09-19

- PDF viewer: Fixed an issue of search function.  
- PDF viewer: Fixed an issue that may use a lot of memory when decrypt KRPDF file.
- EPUB viewer: Fixed an issue that error may occurred when search text on EPUB mixed with reflowable and fixed layout.
- EPUB viewer: Fixd an issue that popup of text marker may not appear.

### 7.15.8 — 2023-02-08

- Fix the issue that error may occurred when open documents with offline.
- PDF viewer: TOC item displayed with word-wrap.
- EPUB viewer: Fixed the issue that aspect ratio of image may not correct on the iOS 16.3.
- EPUB viewer: Fixed the issue that some of thumbnails may not be loaded.
- EPUB viewer: Fixed the issue that next and previous pages have incorrect position when rotate the device.

### 7.14.8 — 2022-11-29

- PDF viewer: Fix the bug that PDF settings of 2-page-spread and page direction are not used.
- EPUB viewer: Fixed to save "view mode", "font size" and "theme".

### 7.14.4 — 2022-11-01

- Fix the issue that an error occured when you reset your Cloud Library on the other device. 
- Fix the issue that thumbnail may not load on the Cloud Library. 
- Improve the dada loading performance of bookshelf and Cloud Library. 
- Fix the issue that a download error occurred when the app enter background while download document in the Cloud Library.
- EPUB viewer: Fix the issue that annotation list could not be scroll down to the bottom on the iPhone.

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## More apps by NIKKAN KOGYO SHIMBUN, LTD.

- [WRS VIRTUAL](https://appshunter.io/ios/app/wrs-virtual/id1582340041)
- [日刊工業新聞電子版](https://appshunter.io/ios/app/id1595536465)

All apps by NIKKAN KOGYO SHIMBUN, LTD.: https://appshunter.io/developer/1490400808

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-05.*