Interchange vs 冀小英语
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interchange
Convert and read a wide variety of ebook formats, including DRM-protected files. Offers extensive customization for reading, note-taking, and book management. Supports multiple import methods and file decompression.
- Multiple ebook format conversion
- DRM removal for Kindle books
- Customizable ebook reader layout
- Note-taking and bookmarking
- Customizable book covers
- Multiple page-turning methods
- Comic reading support
- Advanced book management
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Functional Features 1. Supports multiple format conversions: txt, epub, mobi, azw, azw3, prc, pdf, markdown, docx, htmlz, fb2, etc. For txt files, automatically extract chapter directories. 2. Support removing DRM protected book files (Kindle DRM). 3. A comprehensive e-book reader that supports multiple formats: txt epub、mobi、azw、azw3、prc、pdf。 Powerful custom layout layout, including line spacing, paragraph spacing, first line indentation, top and bottom spacing, left and right spacing, custom background, custom font, global progress drag, and global search. Rich note taking and bookmarking functions. 4. Support custom book covers, online search, and album selection, even txt can have beautiful covers. Simultaneously editable, cropped, and filtered. 5. Provide multiple page turning methods, including overlay, translation, simulation, scrolling, automatic scrolling reading, landscape reading, and dual column reading. 6. Supports comic reading, with maximum screen ratio and maximum clarity for reading comics. Support scrolling mode for reading comics. 7. Powerful book management function, supporting grouping, renaming, sorting, dragging and merging groups, batch deletion, and moving operations. 8. Support modifying book element data such as title, author, ASIN, ISBN, time, publisher, etc. 9. Multiple file transfer methods, importing book files through WiFi, computer, Baidu cloud storage, local devices, and other application sharing methods for convenience and ease. 10. Quickly decompress compressed files such as zip, rar, 7z, etc. 11. Password protection function, can set gesture password, facial recognition unlock. 12. There are more features waiting for you to explore. [Automatic Subscription Instructions] --Subscription period: 1 month --Price: ¥ 18 --Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term. --Payment will be charged to iTunes account upon confirmation of purchase --The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined --Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase --If any unused portion of the free trial period is provided, it will be forfeited upon the user's purchase of the publication's subscription (if applicable) --Subscription period: 1 year --Price: ¥ 30 --Subscription auto renewal, unless auto renewal is closed at least 24 hours before the end of the current term --Payment will be charged to iTunes account upon confirmation of purchase --The account will receive renewal fees within 24 hours before the end of the current period, and the renewal fees will be determined --Subscription can be managed by users themselves, and automatic subscription can be disabled by entering their personal account on the App Store after purchase --If any unused portion of the free trial period is provided, it will be forfeited upon the user's purchase of the publication's subscription (if applicable) --Service Terms: http://blog.sina.com.cn/s/blog_a02518890102xuoh.html --Privacy Policy: http://blog.sina.com.cn/s/blog_a02518890102xtq4.html
冀小英语
This app provides audio playback and interactive features for elementary school English textbooks. It offers pronunciation practice, translation, adjustable playback speeds, and recording capabilities to aid learning.
- Interactive textbook audio playback
- Adjustable sentence speed
- Sentence translation
- Recording and playback
- Doodling and annotation
- Listening mode
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* 适用河北小学英语一到六年级,冀教版教材配套共12套点读教材; * 高音质、高清晰、纯正标准,随时陪伴孩子读出来,易学易用很轻松; * 句子可翻译、语速可调,各种情况全满足; * 点读变听书,播放方式随意调 * 无广告。 【点读功能】 长按播放按钮,就能看到多个实用的跟读设置: 1、跟读模式:循环当页、循环单元、循环课本 2、句子语速:正常、稍慢、很慢 3、翻译开关 4、句子停顿时间 5、优先顺序:录音优先、原因优先 6、涂鸦:随书页显示涂鸦、不随书页显示涂鸦 【录音功能】 长按句子,提示录音: 1、双击句子,播放录音 【涂鸦功能】 点击画笔按钮,进入涂鸦状态: 1、色板:调整颜色、选择橡皮擦 2、清空:重新开始 3、截图:把手写效果保存本地,或者分享给其它人 【听书功能】 一下按钮,立马点读变听书,简单易用两设置: 1、播放方式:顺序播放、单曲循环、列表循环 2、定时关闭:自动停止朗读的时间,你来设定 希望【冀小英语】APP的实用功能,可以帮您减轻陪孩子读书的烦恼。
Screenshots
Verdict
The clearest difference is in-app purchases: 冀小英语 at none against Interchange's 10. 冀小英语 also leads on review sentiment (100% vs 73%) and iOS requirement (10.0 vs 12.2). Interchange's advantage is update cadence (every 6 days vs every 2 months). On price, ads and device support 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. Interchange sells 9 in-app purchases, starting at $2.49 per month. 冀小英语 asks for nothing beyond the download.
Interchange ships an update every 6 days, 冀小英语 every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Interchange | 冀小英语 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (212 ratings) — better | — |
| Positive reviews | 73.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 212 — better | — |
| Update frequency | Every 6 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.2 | 10.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 84 MB |
| Age rating | 17+ | 4+ |
| Developer | 小龙 刘 | 婉雯 周 |
Customer experience
Interchange
冀小英语
Bugs and requests
Interchange
Reported bugs
11 issues- App crashes when changing covers
- Ad close buttons are too small or non-functional
- Converted files show as 0 bytes
- App crashes when deleting empty files
- Pro version features still require upgrade prompts
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- Converted PDFs have missing images and jumbled text
- Files vanish after sending to Kindle
- Conversion fails despite payment
- App shows ads instead of converting files
- Cover metadata not preserved in conversions
- Right-to-left text displays incorrectly
Requested features
8 requests- Batch conversion capability
- Right-to-left text support for Arabic books
- Proper cover image inclusion in conversions
- Unlimited conversions
- iPad Pro landscape orientation support
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- Ability to send files to Kindle over WiFi
- Bookmark synchronization across devices
- Better ad implementation with working close buttons
冀小英语
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interchange
- UNLOCK ALL FEATURES, REMOVE AD$2.491 Month
- UNLOCK ALL FEATURES, REMOVE AD$4.991 Year
- REMOVE ALL ADS$1.99
- Conversions+50$1.99
- All formats2 variants$1.99
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- Conversions+600$2.99
- Conversions+1000$3.99
- ALL ACCESS, REMOVING AD$9.99
- All advanced features$9.99
冀小英语
No in-app purchases









