Comparison

DeftPDF Document Translator vs TransFlow

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

Head to head
About

DeftPDF Document Translator

Instantly translate documents in various formats like PDF, Docx, and Txt into over 130 languages. This app preserves document layout and supports large files, including scanned PDFs using OCR technology. No registration or watermarks are required.

Highlights
  • Translate 130+ languages
  • Supports PDF, Docx, Pptx, Xlsx, Txt, Html
  • Preserves document layout
  • OCR for scanned PDFs
  • Large file support (500+ pages)
  • No registration required
  • No watermarks
Features
Read full description

Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files into 137 languages in seconds. DeftPDF helps preserve the original layout of your document, so your translated file stays easy to read and share. Key features: • Translate PDF, DOCX, PPTX, XLSX, TXT, and HTML files • Support for 137 languages • Preserve document layout and formatting as much as possible • Translate scanned PDFs with built-in OCR • No DeftPDF account required • No watermark on translated files • Keep files private with automatic deletion after 5 hours Additional information: • Translation requires payment • No subscription required • Pricing varies by region • Supports up to 200 billable pages per document

About

TransFlow

Translate foreign language EPUB books into your preferred language using on-device translation. Read translated books with customizable themes and export them to your favorite EPUB readers. Offers both translation-only and bilingual output options.

Highlights
  • On-device EPUB translation
  • Bilingual output option
  • Customizable reader themes
  • Queue multiple books for translation
  • Export translated EPUBs
  • Pause and resume translation
Features
Read full description

Designed for reading in your language! TransFlow turns foreign-language EPUBs into translated EPUBs using Apple’s on-device translation. No API keys, no accounts, no servers — your books never leave your device. Key features: Import a reflowable EPUB, pick source and target languages, and translate on your device Leave anytime — the job pauses and picks up where it left off when you come back Queue several books; switching pauses the current one instead of losing progress Translation-only, or bilingual output that keeps each original passage with its translation below¹ Clean paginated reader with swipe or tap-to-turn pages; remembers your place (including iPad rotation and split screen) Reading themes, font size, line spacing, and margins; extra downloadable fonts¹ The result is a real EPUB — export to Apple Books, ReadFlow, or any EPUB reader¹ Free to download. Translating and reading stay free (translation-only). TransFlow Pro is a one-time purchase that unlocks bilingual output, unlimited exports (3 free to try), automatic light/dark reading theme, and extra fonts. For readers who want the file itself: export a real EPUB anytime and keep reading wherever you like. ¹ Bilingual output, unlimited exports, auto theme, and downloadable fonts require TransFlow Pro. Fixed-layout EPUBs (comics, picture books, heavily designed layouts) are not supported. Translation quality and available languages depend on Apple’s on-device translation. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://is.gd/xWX6SJ

Screenshots

DeftPDF Document Translator4 screens
TransFlow4 screens

Verdict

The call

The clearest difference is review sentiment: DeftPDF Document Translator at 50% against TransFlow's 0%. DeftPDF Document Translator also leads on update cadence (every 10 days vs every 17 months) and iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and monetization model 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. DeftPDF Document Translator sells 10 one-off in-app purchases and TransFlow sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

DeftPDF Document Translator ships an update every 10 days, TransFlow every 17 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
DeftPDF Document Translator versus TransFlow: the parameters behind the verdict, then further details
ParameterDeftPDF Document TranslatorTransFlow
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 10 days — betterEvery 17 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better26.0
Further details — not scored
Size26 MB11 MB
Age rating4+4+
DeveloperSictec Infotech实 许

Customer experience

DeftPDF Document Translator

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

TransFlow

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

In-app purchases

10 purchases

DeftPDF Document Translator

One-time10
  • Translate file$0.49
  • Translate file$0.99
  • Translate file$1.99
Show 7 more
  • Translate file$2.99
  • Translate file$3.99
  • Translate file$4.99
  • Translate file$5.99
  • Translate file$6.99
  • Translate file$8.99
  • Translate file$9.99
1 purchases

TransFlow

One-time1
  • TransFlow Pro$9.99

Questions

Is DeftPDF Document Translator free?
DeftPDF Document Translator is free to download, with in-app purchases available.
Is TransFlow free?
TransFlow is free to download, with in-app purchases available.
Do DeftPDF Document Translator or TransFlow have ads?
Neither DeftPDF Document Translator nor TransFlow shows ads.
Which is updated more often, DeftPDF Document Translator or TransFlow?
DeftPDF Document Translator ships an update every 10 days, and TransFlow every 17 months. Most recently, DeftPDF Document Translator was updated on November 3, 2026 and TransFlow on November 8, 2026.

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