Comparison

THREADFINDER PRO vs Convert to PDF

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

Head to head
About

THREADFINDER PRO

Features
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Profesyonel Vida Norm Bulucu ThreadFinder PRO, mühendisler, teknisyenler ve DIY meraklıları için geliştirilmiş kapsamlı bir vida norm hesaplama uygulamasıdır. ÖZELLİKLER: • Metrik (Kaba/İnce) diş tanıma • BSPP/BSPT boru dişleri • Whitworth (BSW) standartları • NPT Amerikan boru dişleri • UNC/UNF vida serileri • Otomatik norm önerisi • Teknik detay gösterimi KULLANIM: Somun veya vida seçin, çapı girin, uygun normu anında bulun. Teknik çizim, imalat ve tamir işlerinizde güvenilir yardımcınız.

About

Convert to PDF

Easily convert documents, images, and text files into high-quality PDFs. Supports a wide range of formats including Word, Excel, JPG, and PNG. Offers batch conversion and secure processing without watermarks.

Highlights
  • Convert Word, Excel, PowerPoint to PDF
  • Convert images (JPG, PNG, HEIC) to PDF
  • Convert text and Markdown to PDF
  • Merge multiple images into one PDF
  • Batch conversion of multiple files
  • Secure processing with immediate file deletion
  • No watermarks on converted PDFs
Features
Read full description

Transform your documents, images, and text files into PDF format with PDFOn — your powerful all‑in‑one PDF converter. CONVERT OFFICE DOCUMENTS TO PDF • Word to PDF: Convert DOC and DOCX files to PDF in seconds while preserving formatting, fonts, and layout. • Excel to PDF: Export XLS and XLSX spreadsheets to professional, shareable PDF documents. • PowerPoint to PDF: Convert PPT and PPTX presentations into PDFs for universal viewing. IMAGE TO PDF CONVERTER • Convert JPG, JPEG, PNG, BMP, GIF, WEBP, and HEIC photos to high‑quality PDF. • Merge multiple images into a single PDF or convert pictures individually. TEXT AND MARKDOWN TO PDF • Text to PDF: Turn plain TXT files into formatted PDFs. • Markdown to PDF: Export MD files to beautifully formatted PDFs with preserved styling. KEY FEATURES • Fast PDF converter with cloud processing. • Supports 15+ document and image formats. • Batch conversion of multiple files simultaneously. • High‑quality output with smart compression. • No watermarks on converted PDFs. • Secure processing — files deleted immediately after conversion. • Works with all standard PDF readers. HOW TO CONVERT WITH PDFON 1. Select file type: Word, Excel, Image, Text, or Markdown. 2. Choose files from your device. 3. Tap Convert to PDF. 4. Download and share your PDF. WHY CHOOSE PDFON Complete support for document and image conversion needs — whether you need Word to PDF, Excel to PDF, images to PDF, or text to PDF, PDFOn handles it all in one app. SUBSCRIPTION INFORMATION PDFOn offers premium features through auto‑renewable subscriptions. Payment is charged to your iTunes Account at confirmation of purchase, and your subscription automatically renews unless auto‑renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage subscriptions and turn off auto‑renewal in Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Privacy Policy: https://www.pdfon.pro/legal/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

THREADFINDER PRO1 screens
Convert to PDF4 screens

Verdict

The call

The clearest difference is in-app purchases: THREADFINDER PRO at none against Convert to PDF's 2. THREADFINDER PRO also leads on update cadence (fortnightly vs monthly). Convert to PDF's advantage is iOS requirement (15.1 vs 17.0). On price, 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. Convert to PDF sells 2 in-app purchases, starting at $4.99 per month. THREADFINDER PRO asks for nothing beyond the download.

UpkeepUpdate frequency

THREADFINDER PRO ships an update fortnightly, Convert to PDF monthly. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 6 level
THREADFINDER PRO versus Convert to PDF: the parameters behind the verdict, then further details
ParameterTHREADFINDER PROConvert to PDF
PriceFreeFree
Rating—2.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size1 MB51 MB
Age rating12+4+
DeveloperSeyfettin AslanSoufiane Bouziane

In-app purchases

None

THREADFINDER PRO

No in-app purchases

2 purchases

Convert to PDF

Subscriptions2
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$29.991 Year

Questions

Is THREADFINDER PRO free?
THREADFINDER PRO is free to download, with no in-app purchases.
Is Convert to PDF free?
Convert to PDF is free to download, with in-app purchases available.
Do THREADFINDER PRO or Convert to PDF have ads?
Neither THREADFINDER PRO nor Convert to PDF shows ads.
Which is updated more often, THREADFINDER PRO or Convert to PDF?
THREADFINDER PRO ships an update fortnightly, and Convert to PDF monthly. Most recently, THREADFINDER PRO was updated on October 25, 2026 and Convert to PDF on October 29, 2026.

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