Comparison

PDF Prime vs Annovate

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

Head to head
About

PDF Prime

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PDF Prime: Your One-Stop PDF Solution! PDF Prime is a powerful PDF tool offering comprehensive conversion and management features. Whether you need to convert photos, images, or other documents into PDFs, PDF Prime makes it effortless. Our app also supports text extraction from images, converting it into PDFs to help you quickly organize information. Key Features: Instant Photo-to-PDF: Snap and convert paper documents, business cards, and more into high-quality PDF files instantly. Image-to-PDF Conversion: Transform image formats like JPEG and PNG into clear, high-resolution PDF documents. Text Extraction to PDF: Extract text from images or scanned documents and create editable PDFs for easy editing and archiving. File Format to PDF: Convert a variety of file formats, including Word, Excel, and PowerPoint, into standard PDFs. Conversion History: Automatically save and manage your conversion history for easy access and organization. Smart Search: Quickly locate specific content within your PDFs to enhance productivity. Built-in PDF Preview: Preview your PDF files directly within the app for convenient viewing and verification. Let PDF Prime enhance your work and life with efficient and convenient PDF processing. Download now and experience its powerful features!

About

Annovate

Features
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Annovate lets you add voice or text annotations directly to any image or markdown/plain text file (.md or .txt). Tap to place a numbered marker, record your thoughts, and share annotated images with easily editable voice-to-text transcripts. I built Annovate to give design feedback on my phone without having to type, and to easily edit before sharing with others. With the new 2.0 version, I can now review markdown and plain text files on the go, without needing to type. The annotations save into the text as inline comments. Export your text into a new file for later review. While other annotation apps are loaded with features and are difficult to use while mobile, Annovate is optimized for quick annotations, anytime and anywhere. How It Works 1. Import any image from your photo library or files OR a markdown or plain text file (.md or .txt) 2. Tap anywhere to place a numbered annotation 3. Tap the record button to capture multiple voice notes (up to 60 seconds per note) 4. On-device speech recognition automatically transcribes your audio 5. Easily edit your transcript and listen to voice notes 6. Share your Annovate document with other users, or export as PDF if an image 7. For text-based Annovate documents, you can export your text with your annotations embedded as inline comments Use Cases - Give design feedback on mockups and wireframes - Mark up markdown files while on the go, then export and share with others - Mark up photos to document feedback for edits or issues - Annotate photos from your photo library or files - Provide critique and revision notes for any image or plain text file - Take a screen shot of a map, then annotate image for step by step direction - Take a picture of a paper checklist, then annotate image with completion checkmarks Key Features - Voice recording with automatic transcription - On-device speech recognition for complete privacy - Unlimited audio clips per annotation - Smart move mode allows for precise placement of markers - Tag annotations as alert, resolved, or question - PDF export with numbered transcript list - Native document format with AirDrop sharing - Smooth pinch-to-zoom and pan navigation Pricing All features are available in the free version, with up to 3 annotations per document. Upgrade with one-time purchases, only when you need more annotations. Basic: 10 annotations per document Pro: 99 annotations per document

Screenshots

PDF Prime4 screens
Annovate4 screens

Verdict

The call

The clearest difference is in-app purchases: PDF Prime at none against Annovate's 2. PDF Prime also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (14.0 vs 26.2). Annovate's advantage is ads (none vs shown). On price 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. Annovate sells 2 one-off in-app purchases. PDF Prime asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Prime ships an update fortnightly, Annovate every 5 weeks. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard4 real differences ยท 2 level
PDF Prime versus Annovate: the parameters behind the verdict, then further details
ParameterPDF PrimeAnnovate
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 5 weeks
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPad
Requires iOS14.0 โ€” better26.2
Further details โ€” not scored
Size17 MB4 MB
Age rating17+4+
DeveloperArt Fate E-Commerce LimitedNelson Taruc

In-app purchases

None

PDF Prime

No in-app purchases

2 purchases

Annovate

One-time2
  • Annovate Basic$0.99
  • Annovate Pro$4.99

Questions

Is PDF Prime free?
PDF Prime is free to download, with no in-app purchases.
Is Annovate free?
Annovate is free to download, with in-app purchases available.
Do PDF Prime or Annovate have ads?
PDF Prime shows ads; Annovate does not.
Which is updated more often, PDF Prime or Annovate?
PDF Prime ships an update fortnightly, and Annovate every 5 weeks. Most recently, PDF Prime was updated on November 4, 2026 and Annovate on November 9, 2026.

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