Comparison

OTL APPS vs PDFAmora

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

Head to head
About

OTL APPS

Features
Read full description

OTL APPS offers a seamless experience across essential business applications, allowing you the freedom to conduct business on the go.

About

PDFAmora

Features
Read full description

PDFAmora โ€” Your Offline PDF Companion PDFAmora is a powerful, privacy-focused PDF toolkit that works entirely offline. All your documents are processed locally on your device โ€” no files are ever uploaded to any server. 8 POWERFUL PDF TOOLS: โ€ข MERGE PDF โ€” Combine multiple PDF files into one document. Drag & drop to reorder pages before merging. โ€ข SPLIT PDF โ€” Extract specific page ranges or split into individual pages. Visual page selector with range slider. โ€ข COMPRESS PDF โ€” Reduce file size with 3 quality levels (Low, Medium, High) while maintaining readability. โ€ข CONVERT โ€” PDF to Images (PNG/JPG) and Images to PDF. Convert photos and scans into professional PDF documents. โ€ข ROTATE PDF โ€” Rotate pages by 90ยฐ, 180ยฐ, or 270ยฐ. Select individual pages or rotate all at once. โ€ข WATERMARK โ€” Add text watermarks to your PDFs. Choose from 6 positions including diagonal. Customize size and opacity. โ€ข PROTECT PDF โ€” Encrypt your PDF files with password protection (RC4 encryption). Set permissions for printing, copying, and editing. PRIVACY FIRST: โ€ข 100% offline โ€” no internet required โ€ข No data collection, no analytics, no tracking โ€ข Files never leave your device โ€ข No account or login needed BEAUTIFUL & INTUITIVE: โ€ข Clean, modern Material Design 3 interface โ€ข Light and Dark theme support โ€ข 11 languages: English, Vietnamese, Chinese, Hindi, Spanish, French, Arabic, Bengali, Portuguese, Russian, Japanese โ€ข Smooth animations and responsive layout ORGANIZED WORKFLOW: โ€ข Recent Files โ€” Quick access to your latest processed documents โ€ข History โ€” Track all your PDF operations โ€ข Share โ€” Send processed files via any app PDFAmora is developed by NDT Studio with a focus on quality, privacy, and user experience. No ads. No subscriptions. Just a clean, powerful PDF toolkit.

Screenshots

OTL APPS4 screens
PDFAmora4 screens

Verdict

The call

The clearest difference is in-app purchases: OTL APPS at none against PDFAmora's 1. OTL APPS also leads on ads (none vs shown). PDFAmora's advantage is update cadence (weekly vs every 3 weeks). On price, device support and iOS requirement 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. PDFAmora sells 1 one-off in-app purchase. OTL APPS asks for nothing beyond the download.

UpkeepUpdate frequency

OTL APPS ships an update every 3 weeks, PDFAmora weekly. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

Scorecard3 real differences ยท 3 level
OTL APPS versus PDFAmora: the parameters behind the verdict, then further details
ParameterOTL APPSPDFAmora
PriceFreeFree
Update frequencyEvery 3 weeksWeekly โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS15.615.0 โ€” better
Further details โ€” not scored
Size59 MB35 MB
Age rating4+4+
DeveloperOnward Technologies LimitedNhu Dinh Tao

In-app purchases

None

OTL APPS

No in-app purchases

1 purchases

PDFAmora

One-time1
  • Remove Ads$1.99

Questions

Is OTL APPS free?
OTL APPS is free to download, with no in-app purchases.
Is PDFAmora free?
PDFAmora is free to download, with in-app purchases available.
Do OTL APPS or PDFAmora have ads?
PDFAmora shows ads; OTL APPS does not.
Which is updated more often, OTL APPS or PDFAmora?
OTL APPS ships an update every 3 weeks, and PDFAmora weekly. Most recently, OTL APPS was updated on November 4, 2026 and PDFAmora on October 28, 2026.

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