PDF Reader vs 韩语随时随地学
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader
This app allows you to read various document formats like PDF, EPUB, and CHM on your iPhone and iPad. It supports file import, text search, annotation, and even previewing MS Office files and videos. A simple to-do list and auto-save reading progress are also included.
- Reads PDF, CHM, EPUB, TXT files
- PDF annotation and text search
- File import via Files, Airdrop, iTunes, web
- MS Office and video file preview
- Simple To-Do list functionality
- Auto-save reading progress
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PDF Reader - Mini Version is an amazing reader App on iPhone and iPad Main Fatures: 1. support read pdf、chm、epub、txt file 2. support pdf annotation and text search 3. support import file via Files、Airdrop、iTunes、web browser 4. support MS office Word、Excel、PPT、Video and many other file types preview 5. support simple Todo list 6. support auto save reading progress 7. support Baidu Net Disk
韩语随时随地学
This app offers an official audio-enabled digital version of a popular Korean language learning book series. It features pronunciation guides, realistic scenarios, and interactive learning to help users speak Korean fluently. The app includes four books covering vocabulary, travel phrases, grammar, and beginner lessons.
- Official book content
- Audio pronunciation
- Interactive learning
- Realistic language scenarios
- Vocabulary, grammar, and travel guides
- Offline access
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《随时随地学韩语》丛书官方App（有声点读版） 你离“太阳的后裔”宋仲基，只差一个App的距离！ 【限时特惠：套装4本一次购买，劲享6折优惠！】 《随时随地学韩语》丛书是由华东理工大学出版社出版的一套韩语学习普及书籍。科学的注音方法、从发音开始由浅入深的知识体系、真实韩语场景再现，丛书深受广大韩语爱好者、学生、游客的喜爱。 全新的移动端《随时随地学韩语》App，在还原丛书内容基础上，优化了阅读体验，增加了有声点读功能，更易让读者掌握韩语发音，不做“哑巴外语”。让韩语学习者乃至韩国旅行游客们做到随时随地、“有话可说”。 【App内含4册一套书】（打包购买，限时特惠） 《超好记的韩语单词书》《超好用的韩语旅游书》 《超好用的韩语语法书》《超好学的韩语入门书》 【应用特色】 官方出品，保证原汁原味的内容呈现 有声点读，边听边学营造真实语言环境 随时随地，行走的耐心专业韩语老师 一键支付，尽享限时打包购买6折优惠 本App由华东理工大学出版社联手“阅门户”团队倾情打造。 【联系我们】 e-mail：service@readoor.cn 座 机：029-68518879
Screenshots
Verdict
The clearest difference is update cadence: PDF Reader at every 3 weeks against 韩语随时随地学's every 2 months. PDF Reader also leads on review sentiment (71% vs 63%). 韩语随时随地学's advantage is iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PDF Reader sells 5 one-off in-app purchases and 韩语随时随地学 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
PDF Reader ships an update every 3 weeks, 韩语随时随地学 every 2 months. The most recent releases landed on September 25, 2026 and September 7, 2026 respectively.
| Parameter | PDF Reader | 韩语随时随地学 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (8 ratings) — better | — |
| Positive reviews | 71.4% of reviews — better | 62.5% of reviews |
| Number of ratings | 8 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | 绪强 任 | 北京触阅信息科技有限公司 |
Customer experience
PDF Reader
韩语随时随地学
In-app purchases
PDF Reader
- Reader App donate$0.99
- Dropbox Support$0.99
- Remove Ad$4.99
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- Todo donate$7.99
- Todo donate$14.99
韩语随时随地学
- 随时随地学韩语$5.99
