PDF Flow vs 文盲救星
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Flow
This app is an offline PDF tool for creating, viewing, editing, and organizing PDF documents directly on your device. Generate PDFs from photos or text, edit pages, compress files, and manage your local library without needing an account or uploading your data.
- Create PDFs from photos, text, or blank pages
- Edit PDF pages, insert or remove pages
- Compress PDFs with adjustable strength
- Organize files with categories and favorites
- Offline file management and editing
- Import and export via Files app and share sheet
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PDF Flow is your private offline PDF tool for viewing, creating, editing and storing PDFs on your phone. Generate PDFs from photos, text or blank pages, edit pages in a clear reader view, and save all files on your device. Create PDF files - Merge selected photos into one PDF - Type text and export clean PDF documents - Create blank PDFs with custom page numbers - Import PDFs and images from the Files app Read & edit PDF pages - Read documents continuously, navigate quickly with page thumbnails - Zoom in/out for clearer reading - Insert blank pages or add photo pages - Duplicate pages or remove unwanted ones - Modify single pages while keeping your original file intact Compress & share PDFs - Select compression strength to fit your needs - Preview estimated file size before compression - Save a copy of your original document if needed - Export or share PDFs through iOS native share sheet Manage your local file library - Sort files by name, date or file size - Use categories and favorites to filter your documents - Search filenames and view recent searches - Restore deleted files or erase them forever - Clear temporary cache and thumbnails without deleting PDFs All PDF editing, reading, compression and file management happens directly on your iPhone. PDF Flow needs no account and will never upload your files to outside servers. Your documents only leave the app when you actively share them via iOS share functions. Feature performance varies based on file content, format, device hardware and iOS system version.
文盲救星
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文盲救星是一部帶 AI 的香港鍵盤。打字、改寫、翻譯都在鍵盤完成,唔使剪去第二個 App。 預設用裝置內 Apple Intelligence:可離線、私隱優先,草稿唔會送到雲端 AI。支援 iPhone 15 Pro/15 Pro Max 或更新、並已開啟 Apple Intelligence 的機型。較舊 iPhone 會自動改用文盲救星內建供應商(需網絡,文字會離開裝置)。 WHY IT’S DIFFERENT • 香港輸入:速成、粵語五筆、英文,可混合輸入 • 寫作工具就在鍵盤:文法校對、翻譯、轉換語氣 • 裝置內 AI:預設離線、私隱優先 • 任何 App 都能用:訊息、電郵、備忘錄、Safari、社交 App • 分享功能與 Siri:選取文字即可改寫,亦可用語音觸發 WRITE BETTER, ANYWHERE 改錯字、標點同文法。把句子改成 Professional、Casual、Formal、Friendly,或自訂語氣。即時翻譯成繁體中文、英文及其他語言,並盡量保留原意。 A FULL HONG KONG KEYBOARD QWERTY 同時打英文同速成;亦可改用粵語筆劃(一丨丿丶乛)。候選字、建議同 AI 工具都在同一塊鍵盤。可調高度、鍵帽顯示(英文字母/部首/混合)同主題。 PRIVACY BY DEFAULT 預設 AI 在這部 iPhone 上運行。開啟「允許完整取用」是為了使用 Apple Intelligence,以及同主 App 同步設定——並不是把你的按鍵紀錄送到我們的伺服器。只有你之後自行加入雲端 API Key,文字才會離開裝置。 VIP 無限使用 Apple Intelligence 寫作、每月 30 張內建生圖、自訂文字/生圖供應商、自訂鍵盤顏色同背景、自訂寫作語氣,以及完整生圖圖庫。新帳號有寫作同生圖試用額度。 要求:iOS 17 或更新。裝置內 AI 需要支援 Apple Intelligence 的 iPhone。請到「設定 → 一般 → 鍵盤」加入文盲救星,並開啟「允許完整取用」。 使用條款(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Use:https://literacysavior.chilldy.com/terms 私隱政策:https://literacysavior.chilldy.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: PDF Flow at none against 文盲救星's 2. 文盲救星's advantage is ads (none vs shown) and update cadence (every 11 days vs every 4 weeks). On price, device support and iOS requirement 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. 文盲救星 sells 2 in-app purchases, starting at $4.99 per month. PDF Flow asks for nothing beyond the download.
PDF Flow ships an update every 4 weeks, 文盲救星 every 11 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | PDF Flow | 文盲救星 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 weeks | Every 11 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 77 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Fuzhou Qingyue Network Technology Co., Ltd. | suen king Fung |
In-app purchases
PDF Flow
No in-app purchases
文盲救星
- VIP Monthly$4.991 Month
- VIP Yearly$49.991 Year









