Comparison

A.Notes vs CAJ Converter

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

Head to head
About

A.Notes

This app enhances PDF management with features like text recognition, voice-to-text, digital signatures, and password protection. It offers advanced data capturing using AI and supports over 50 languages for speech recognition and 35 for online translation.

Highlights
  • AI-powered data capturing
  • PDF annotation and signing
  • Voice-to-text and speech recognition
  • OCR and text recognition
  • Online translation
  • Password protection for PDFs
  • Calendar integration
Features
Read full description

New features: * Handy interpretation for communicating with people in different countries * Fast and easy to export ANotes' data in PDF format * Create your own audio book in PDF format * Create free text annotation (free drawing) if words cannot express your meaning * Sign your ink signature with date and your title, and drag your signature/image to where you like on the PDF file. * Add company stamp or picture to PDF file * Maintain watermark on your PDF file * Create remarks/comments on PDF file through voice to text function * Protect your PDF file by password/key * Share your PDF file with optional alert in your calendar, so that you can trace the file you have sent. * Your PDF summary/remarks can be saved/linked in ANotes's database, so that you can read/search the summary in ANotes instead of finding and opening the documents one by one. A.Notes is NOT just a notes app, it provides advanced data capturing functions using A.I. technologies based on Apple Machine Learning Models - Core ML. It supports iOS 14.0 or above, and 10 display languages are provided - English, German, Spanish, Portuguese, Italian, French, Japanese, Korean, Simplified and Traditional Chinese. - Capture image data through text recognition - Capture voice data speech recognition over 50 languages - Read text data using natural language processing In additions, due to providing more languages support on OCR, an open source solution - Tesseract is adopted. - Online translation functions support over 35 languages. - All data is captured and stored in database in your device for further processing. - when creating/modifying notes, the notes can be added to Apple Calendar. - The Notes can be categorized your own made icons.

About

CAJ Converter

Easily convert Chinese academic journal files (CAJ, NH, KDH) into PDF or Word documents. Extract text for editing or create clear PDF versions for reading and sharing.

Highlights
  • Convert CAJ to PDF
  • Convert CAJ to Word
  • Text recognition for Word conversion
  • Preview before PDF export
  • Supports .caj, .nh, .kdh formats
Features
Read full description

A converter that can convert Chinese academic journal full-text database (CAJ, NH, KDH) format to PDF or Word! Supported file formats: .caj, .nh, .kdh Convert CAJ to PDF: Convert to a clear PDF, you can preview the content and export the file after conversion; Convert CAJ to Word: Convert text recognition to Word to download and copy text; If you choose to purchase premium membership, payment will be charged to your iTunes account ,and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase . Prices are in U.S. dollars, may vary in countries other than the U.S. and are subject to change without notice. No cancellation of the current subscription is allowed during the active subscription period. Our privacy policy : https://www.zkmeitian.com/page/privacy/cajconverter Our terms of use: https://www.zkmeitian.com/page/agreement/cajconverter

Screenshots

A.Notes4 screens
CAJ Converter4 screens

Verdict

The call

The clearest difference is review sentiment: A.Notes at 100% against CAJ Converter's 48%. CAJ Converter's advantage is price (Free vs $9.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

CAJ Converter is free to download; A.Notes costs $9.99 up front. A.Notes sells 1 one-off in-app purchase and CAJ Converter sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

A.Notes ships an update every 5 months, CAJ Converter every 2 months. Both last shipped on November 3, 2026.

Scorecard4 real differences Β· 4 level
A.Notes versus CAJ Converter: the parameters behind the verdict, then further details
ParameterA.NotesCAJ Converter
Price$9.99Free β€” better
Positive reviews100.0% of reviews β€” better47.6% of reviews
Update frequencyEvery 5 monthsEvery 2 months β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidFreemium β€” better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.612.0 β€” better
Further details β€” not scored
Size183 MB55 MB
Age rating4+4+
DeveloperShu Wai KwongMeitian Trading

Customer experience

A.Notes

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CAJ Converter

Written reviews21 reviews
Positive47.6%
Neutral0.0%
Negative52.4%

In-app purchases

1 purchases

A.Notes

One-time1
  • A.Notes version 1.3$18.99
3 purchases

CAJ Converter

Subscriptions3
  • VIPζœˆδΌšε‘˜$2.991 Month
  • VIPε­£δΌšε‘˜$4.993 Months
  • VIPεΉ΄δΌšε‘˜$7.991 Year

Questions

Is A.Notes free?
A.Notes costs $9.99, and also offers in-app purchases.
Is CAJ Converter free?
CAJ Converter is free to download, with in-app purchases available.
Do A.Notes or CAJ Converter have ads?
Neither A.Notes nor CAJ Converter shows ads.
Which is updated more often, A.Notes or CAJ Converter?
A.Notes ships an update every 5 months, and CAJ Converter every 2 months. Most recently, A.Notes was updated on November 3, 2026 and CAJ Converter on November 3, 2026.

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