Comparison

Auto Translator vs PDF Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Auto Translator

Features
Read full description

1. The translation device is connected to the mobile app via Bluetooth 2. Use translation equipment for conversation 3. The mobile app completes translation

About

PDF Reader

This app offers a streamlined way to read, annotate, and organize PDF documents on iOS devices. It features smooth rendering, smart annotation tools, and cloud synchronization for easy access across devices. Enjoy a distraction-free reading experience with features like night mode and reading progress memory.

Highlights
  • Smooth PDF rendering
  • Highlight text and add notes
  • Organize documents with categories
  • iCloud and cloud storage import
  • Reading progress memory
  • Night mode
Features
Read full description

PDF Reader is a professional PDF reading tool designed for iOS, helping you easily read, annotate, and manage PDF documents. Whether for study, work, or research, PDF Reader provides a smooth reading experience and powerful features. Key Features: Smooth Reading: High-quality rendering and fast page-turning for a seamless reading experience. Smart Annotation: Highlight Text: Easily highlight important content with multiple color options. Add Notes: Annotate PDFs with text notes anytime to record your thoughts and ideas. Bookshelf Management: Organize your PDF documents with categorization, search, and quick access. One-tap import of PDF files, supporting iCloud, Files app, and other cloud storage. Reading Progress Memory: Automatically saves your last reading page, so you can seamlessly continue where you left off. Night Mode: Eye-friendly night mode for comfortable reading in any environment. Use Cases: Students: Read textbooks, papers, and notes, highlight key content, and add annotations anytime. Professionals: View contracts, reports, and documents, and quickly annotate and manage them. Researchers: Organize and read academic papers, and record key information. Highlights: Clean Interface: No ads, no distractions, just focus on reading. Cross-Platform Sync: iCloud sync support, access your PDFs and annotations anytime, anywhere. Offline Use: No internet required, enjoy reading anytime, anywhere. Download PDF Reader and make your reading more efficient and management easier! —Privacy Policy please visit: * https://docs.qq.com/doc/DREt1SXJkbG9JYUFT * **Terms of use (EULA): * https://docs.qq.com/doc/DREdKR2ZwYUJaa1hr * **Terms of apple please visit: * https://www.apple.com/legal/internet-services/itunes/dev/stdeula/) * Questions? Contact us at: hxx_shdt@126.com

Screenshots

Auto Translator1 screens
PDF Reader3 screens

Verdict

The call

The clearest difference is price: Auto Translator at Free against PDF Reader's $3.99. Auto Translator also leads on in-app purchases (none vs 3) and iOS requirement (9.0 vs 17.6). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Auto Translator is free to download; PDF Reader costs $3.99 up front. PDF Reader sells 3 in-app purchases, starting at $1.99 per month. Auto Translator asks for nothing beyond the download.

UpkeepUpdate frequency

Auto Translator ships an update every 3 months, PDF Reader every 4 months. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Auto Translator versus PDF Reader: the parameters behind the verdict, then further details
ParameterAuto TranslatorPDF Reader
PriceFree — better$3.99
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 months — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS9.0 — better17.6
Further details — not scored
Size19 MB9 MB
Age rating4+4+
Developer言伟 曾乐祥 胡

In-app purchases

None

Auto Translator

No in-app purchases

3 purchases

PDF Reader

Subscriptions2
  • PDFReader Premium - monthly$1.991 Month
  • PDFReader Premium - yearly$14.991 Year
One-time1
  • PDFReader Premium - lifetime$69.99

Questions

Is Auto Translator free?
Auto Translator is free to download, with no in-app purchases.
Is PDF Reader free?
PDF Reader costs $3.99, and also offers in-app purchases.
Do Auto Translator or PDF Reader have ads?
Neither Auto Translator nor PDF Reader shows ads.
Which is updated more often, Auto Translator or PDF Reader?
Auto Translator ships an update every 3 months, and PDF Reader every 4 months. Most recently, Auto Translator was updated on September 30, 2026 and PDF Reader on October 12, 2026.

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