Comparison

TransLex vs PDF Document Translator

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

Head to head
About

TransLex

Features
Read full description

Got a letter you can't read? TransLex translates it and explains what it actually means. Point your camera at a letter, or upload a PDF, and TransLex gives you the full translation plus a plain-language summary: what the document says, what you need to do, and any deadline you must not miss. TEXTBOOKS, PAPERS AND WHOLE BOOKS Upload a 200-page PDF and get it back in your language, formatted like the original. Studying? Ask for a summary, a plain-language explanation or a key-terms glossary. The free plan translates the first ten pages of any document; Premium translates all of it. WHAT MAKES IT DIFFERENT Most translation apps hand you the words and stop there. TransLex also tells you what to do with them. Choose the kind of document you are holding and the explanation is written for that situation: โ€ข Government letters โ€” tax, immigration, licensing, benefits, city and utility notices โ€ข School letters โ€” permission forms, fees, what your child needs โ€ข Medical and lab results โ€” every term explained in everyday words โ€ข Leases and landlord notices โ€” rent, deadlines, notice periods, deposits โ€ข Insurance letters and claim decisions โ€” what is covered, what was decided, how to respond โ€ข Contracts and agreements โ€” obligations, money, cancellation terms HOW IT WORKS 1. Take a photo of the document or upload a file (PDF, Word, Excel, CSV, images) 2. Choose your language and the type of document 3. Read the translation, the summary, and the list of what to do FEATURES โ€ข Camera scan with text extraction โ€” no typing, no copy-paste โ€ข Works with PDF, Word, Excel, CSV and photos โ€ข Translate into and out of dozens of languages โ€ข Your own glossary โ€” keep names and key terms translated the same way every time โ€ข Side-by-side bilingual PDF export, so you can hand the document to someone else โ€ข Custom instructions โ€” ask for a summary, simpler wording, or a specific tone โ€ข Translation history, saved on your device FREE AND PREMIUM Every day you get free translations to use however you like. Need more in one sitting? Watch a short video to unlock another, or subscribe for unlimited translations, all document types and side-by-side PDF export. IMPORTANT TransLex is an AI translation tool for understanding documents. It is not a certified or sworn translation service, and it does not provide legal, medical, immigration or financial advice. For official submissions that require a certified translation, use an accredited translator. Always confirm anything important with the organisation that sent you the document. Questions or feedback: translexapps@gmail.com EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

PDF Document Translator

Features
Read full description

PDF Doc Translator translates your documents with AI while keeping the original layout intact. Figures, diagrams, formulas, and tables stay exactly where they are โ€” only the text is translated. No more broken PDFs where the images disappear and the tables collapse. WHAT YOU CAN TRANSLATE - PDF, Word, Excel, PowerPoint, EPUB, and plain text - Scanned documents and photos โ€” text is recognized and translated - Research papers, contracts, manuals, reports, forms LAYOUT THAT SURVIVES - Images, diagrams, and charts are preserved as-is, never regenerated or dropped - Formulas stay on one clean line - Tables keep their grid and every number - The translated file looks like the original, in your language TWO QUALITY LEVELS - Standard for everyday documents, Premium for complex or technical material FAIR, SIMPLE PRICING - Buy credits, use what you need โ€” no subscription - Preview the first pages free before you spend a credit - Blank pages are never charged PRIVATE BY DESIGN - No sign-up. You are signed in anonymously - Your documents are deleted automatically within 48 hours, or instantly by you - We never sell your documents or their contents Flip between the original and the translation with a single tap, and share or save the result.

Screenshots

TransLex4 screens
PDF Document Translator3 screens

Verdict

The call

The clearest difference is ads: PDF Document Translator at none against TransLex's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. TransLex sells 2 in-app purchases, starting at $0.99 per month and PDF Document Translator sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

TransLex ships an update every 2 weeks, PDF Document Translator every 8 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference ยท 5 level
TransLex versus PDF Document Translator: the parameters behind the verdict, then further details
ParameterTransLexPDF Document Translator
PriceFreeFree
Update frequencyEvery 2 weeksEvery 8 days โ€” better
AdsYesNo โ€” better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.415.0 โ€” better
Further details โ€” not scored
Size56 MB120 MB
Age rating4+4+
DeveloperTal NirGun woo Kim

In-app purchases

2 purchases

TransLex

Subscriptions2
  • Premium Monthly Plan3 Days trial$0.991 Month
  • Premium Annual Plan$9.991 Year
3 purchases

PDF Document Translator

One-time3
  • 50 Credits$2.99
  • 200 Credits$7.99
  • 1000 Credits$24.99

Questions

Is TransLex free?
TransLex is free to download, with in-app purchases available.
Is PDF Document Translator free?
PDF Document Translator is free to download, with in-app purchases available.
Do TransLex or PDF Document Translator have ads?
TransLex shows ads; PDF Document Translator does not.
Which is updated more often, TransLex or PDF Document Translator?
TransLex ships an update every 2 weeks, and PDF Document Translator every 8 days. Most recently, TransLex was updated on October 30, 2026 and PDF Document Translator on October 31, 2026.

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