TST FLY vs YDReader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TST FLY
Read full descriptionHide full description
抛开传统遥控器，通过手机app操控蓝牙四轴app，给人一种不一样的体验。
YDReader
Read TXT, Epub, MOBi, and AZW3 files with extensive customization options for fonts, colors, and spacing. This app also supports decompression of ZIP, RAR, and 7Z archives, and compression into ZIP and 7z formats.
- Ebook reading (TXT, Epub, MOBi, AZW3)
- Customizable reading experience
- File decompression (ZIP, RAR, 7Z)
- File compression (ZIP, 7Z)
Read full descriptionHide full description
1, TXT, Epub, MOBi, AZW3 reader, can be customized font, color, paragraph spacing, etc. 2, support ZIP, RAR, 7Z decompression, ZIP, 7z compression.
Screenshots
Verdict
The clearest difference is in-app purchases: TST FLY at none against YDReader's 2. TST FLY also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (9.0 vs 12.1). 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. YDReader sells 2 one-off in-app purchases. TST FLY asks for nothing beyond the download.
TST FLY ships an update every 3 days, YDReader fortnightly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | TST FLY | YDReader |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (56 ratings) — better |
| Positive reviews | — | 87.0% of reviews |
| Number of ratings | — | 56 — better |
| Update frequency | Every 3 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 4 MB | 37 MB |
| Age rating | 4+ | 17+ |
| Developer | SHENZHEN TOUCHSTONE TECHNOLOGY CO.,LTD | 福中 王 |
Bugs and requests
TST FLY
Not enough reviews yet to summarise bugs or requests.
YDReader
Reported bugs
11 issues- CarPlay audio stuttering on wired connection
- Reading voice sounds hoarse on new phone
- Reading the same sentence repeatedly
- Skipping sentences or paragraphs
- Highlight position ahead of audio, causing auto-page turn issues
Show 6 moreShow fewer
- Cannot use left/right buttons or page down/up to switch pages
- Search results only show single files, not folders
- App restarts from beginning after pausing on iOS 15
- Mysterious pauses during reading
- CarPlay audio stuttering (alone session) after iOS 18
- Text to audio auto starts after pausing on Bluetooth headset
Requested features
29 requests- Add long-press translation (AI assisted)
- Add email login for multi-platform sync
- Add Siri voice option
- Add Siri voice 3 option
- Add more views on homepage (minimalist, detailed, grid)
Show 24 moreShow fewer
- Add continuous reading time reminder
- Add single book loop playback
- Add swipe to select paragraph for reading
- Improve pronunciation of ABCD
- Allow direct editing of words in TXT files
- Add share section
- Add Siri voice packs (Mandarin, Taiwanese)
- Add import audio source function
- Add premium voice YUE to iPad version
- Add Chinese YUE (premium) voice
- Add pause interval and adjustment function (by sentence, line, paragraph)
- Add stop reading by chapter function
- Display current time and battery level
- Modify image display range for custom backgrounds
- Add custom voice sources like YYD
- Add recycle bin function
- Add manual input for progress percentage
- Add manual input for voice adjustment numbers
- Make search results full screen
- Allow multiple selections in search results
- Enable multiple searches without re-entering content
- Format code blocks
- Add option to manually input progress percentage
- Add option to manually input voice adjustment numbers
In-app purchases
TST FLY
No in-app purchases
YDReader
- 1元购买100金币$0.99
- 18元购买9999金币$2.99
