Comparison

PDF ProX vs Simple Translator

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

Head to head
About

PDF ProX

This app offers a comprehensive suite of tools for managing PDF documents on your iPhone. It allows you to read, edit, convert, scan, and even use AI to summarize, translate, and extract text from PDFs and other document formats.

Highlights
  • Read and manage PDF documents
  • Edit text, highlight, draw, and add notes
  • Convert between PDF and Office formats
  • Scan paper documents to PDF
  • AI summarization, translation, and OCR
  • Compress PDF file size
  • Password protect sensitive files
Features
Read full description

Read, edit, convert, scan, and manage PDF documents in one place with PDF ProX: PDF Reader & Editor. Whether you're working with office documents, study materials, contracts, or everyday paperwork, PDF ProX brings essential PDF tools together on your iPhone. Open and organize files, convert documents between PDF and Office formats, scan paper documents, and use AI-powered tools to summarize, translate, and extract text — all in one convenient app. PDF READER & FILE MANAGEMENT • Open and view PDF documents directly on your iPhone. • Keep your documents organized by renaming, moving, and deleting files. • Manage study materials, reports, contracts, and personal documents in one place. PDF EDITING & ORGANIZATION • Highlight important text, underline key details, or strike through content directly on PDF pages. • Draw and add notes to PDFs for reviewing documents, studying, or sharing feedback. • Merge multiple PDF files into a single document for easier sharing and management. • Split large PDFs into smaller, more manageable files. • Reorder PDF pages to arrange your documents the way you need. PDF CONVERTER – PDF & OFFICE FILES • Convert Word, Excel, PowerPoint, and images into PDF files for easy sharing and storage. • PDF to Office: Use AI to convert PDFs into Word, Excel and PowerPoint. • Switch between PDF and Office formats to work with documents, spreadsheets, and presentations in one place. AI TOOLS • AI Summary: Summarize selected document pages and quickly capture key information. Combine summaries, translate results, and export them as files. • AI Translate: Translate selected document pages into your preferred language. Review translations page by page and export the translated content. • AI OCR: Extract text from imported images or documents captured with the camera. Copy, translate, and export recognized text for later use. SMART PDF SCANNER • Scan receipts, notes, contracts, books, photos, and other paper documents directly with your iPhone. • Automatically detect document edges, crop pages, and adjust colors for clearer scans. • Convert scanned pages into PDF files for easy organization and sharing. PDF COMPRESSION • Reduce PDF file size to make documents easier to store and share. • Choose different compression levels depending on your document needs. DOCUMENT SECURITY • Add password protection to sensitive PDF files. • Manage personal, financial, and business documents with additional protection. Privacy policy: https://sites.google.com/roosterx.vn/roosterx-appstore-privacy Terms of use: PDF ProX: PDF Reader & Editor We'd love to hear what you think. Share your feedback and help us keep improving PDF ProX.

About

Simple Translator

This app offers quick language translation through various input methods like camera, voice, and text. It also includes a fun word-matching game to help users learn vocabulary and an English dictionary for quick lookups.

Highlights
  • Camera and photo translation
  • Real-time voice translation
  • Text translation with read-aloud
  • Vocabulary matching card game
  • English dictionary with definitions
  • Daily motivational quotes
Features
Read full description

Simple Translator is your everyday language companion that combines translation with a fun, built-in word game and a quick English dictionary. Whether you’re traveling, studying, or chatting across languages, it gives you more than a translation — it helps you remember.   Why Simple Translator Is Different Match, Flip & Learn: a card-matching game where you pair pictures with English words. This unique play-to-learn feature turns vocabulary building into a habit you’ll actually enjoy.   Four translation entrances: Camera (point at menus, signs, or documents to extract text instantly), Photo (import from your album), Voice (real-time bilingual conversation with side-by-side transcripts), and Dialogue mode for natural back-and-forth.   Core Features   Text translation with freely selectable languages; results can be copied and read aloud.   Daily motivational quotes to inspire you and build a small daily language ritual.   English dictionary: look up English words and see definitions, synonyms, and example sentences in three tabs.   Simple Translator is built for real moments — overseas trips, language practice, quick lookups, and playful learning. If you download it, you can experience how easy it is to translate, speak, and remember.

Screenshots

PDF ProX4 screens
Simple Translator4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Translator at none against PDF ProX's 6. PDF ProX's advantage is update cadence (every 8 days vs every 4 weeks). On price, review sentiment, 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

Both are free to download. PDF ProX sells 6 in-app purchases, starting at $19.99 per year. Simple Translator asks for nothing beyond the download.

UpkeepUpdate frequency

PDF ProX ships an update every 8 days, Simple Translator every 4 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
PDF ProX versus Simple Translator: the parameters behind the verdict, then further details
ParameterPDF ProXSimple Translator
PriceFreeFree
Rating4.1 (41 ratings) — better—
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings41 — better—
Update frequencyEvery 8 days — betterEvery 4 weeks
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.6
Further details — not scored
Size125 MB93 MB
Age rating4+4+
DeveloperROOSTERX GLOBAL COMPANY LIMITEDFuzhou Moxing Technology Co., Ltd

Customer experience

PDF ProX

All ratings41 ratings
Positive78.0%
Neutral12.2%
Negative9.8%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Simple Translator

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

6 purchases

PDF ProX

Subscriptions6
  • PDF ProX: PDF Reader & Editor3 Days trial$19.991 Year
  • PDF ProX: PDF Reader & Editor1 Year trial$19.991 Year
  • PDF ProX: PDF Reader & Editor3 Days trial$24.991 Year
Show 3 more
  • PDF ProX: PDF Reader & Editor1 Year trial$24.991 Year
  • PDF ProX: PDF Reader & Editor3 Days trial$29.991 Year
  • PDF ProX: PDF Reader & Editor1 Year trial$29.991 Year
None

Simple Translator

No in-app purchases

Questions

Is PDF ProX free?
PDF ProX is free to download, with in-app purchases available.
Is Simple Translator free?
Simple Translator is free to download, with no in-app purchases.
Do PDF ProX or Simple Translator have ads?
Both PDF ProX and Simple Translator show ads.
Which is updated more often, PDF ProX or Simple Translator?
PDF ProX ships an update every 8 days, and Simple Translator every 4 weeks. Most recently, PDF ProX was updated on November 8, 2026 and Simple Translator on October 31, 2026.

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