Comparison

OCR Hero vs Lectio

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

Head to head
About

OCR Hero

Features
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OCR Hero turns PDFs, photos, and scanned documents into editable text with fast, accurate OCR. Built for students, researchers, and professionals, OCR Hero helps you capture formulas, tables, and text from documents and convert them into formats you can actually use. Key Features Extract text from PDFs, photos, and document scans Recognize formulas, tables, and structured content with high accuracy Export to Word, LaTeX, Markdown, or plain text Process multiple files in batches Get results in seconds for most documents Sync your work across iPhone, iPad, and Web Designed for real document workflows Whether you are digitizing lecture notes, research papers, homework, reports, or technical documents, OCR Hero helps you move from image to editable content quickly and cleanly. Privacy and Security Your files are transmitted securely for processing. Extracted text may be stored in your account so you can access recent results across devices, and older data is automatically removed over time. Your data is not used to train our models. Download OCR Hero and turn documents into usable text, wherever you work. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ocrhero.com/privacy

About

Lectio

Features
Read full description

Lectio is an OCR tool that lets you choose the engine for each task. It combines on-device recognition, professional OCR services and leading large language models to extract text from images, organize documents and convert formats. Photos, scans, PDFs, handwriting, classical texts, tables, complex formulas, columns and mixed layouts can all become editable, exportable content. Lectio preserves the original hierarchy, paragraphs and layout wherever possible, reducing manual entry and reformatting. Switch between recognition engines based on the file and use case, choosing the right balance of speed, accuracy and layout preservation. —USE CASES— ● Organize lecture slides, books and study materials Extract text, tables and formulas from slides, textbooks, notes and exercises with less manual typing. ● Recognize handwriting and classical texts Extract handwritten notes, annotations, classical works and historical documents for easier organization, search and storage. ● Prepare image content before asking AI When AI cannot read an image clearly, first convert it into structured text, then copy it into your conversation. ● Extract contracts, reports and paper documents Turn contracts, reports, scans and other paper materials into content that is easier to edit, archive and search. ● Recognize complex formulas and specialist material Process mathematical formulas, technical documents, research material and complex symbols while preserving structure wherever possible. ● Capture foreign-language text from video Extract foreign-language text from screenshots, subtitle frames and film clips for translation, study and organization. ● Convert complex documents Process files with tables, formulas, columns, hierarchies and mixed layouts, then convert them for editing or archiving. —CORE FEATURES— 1. Image and file recognition Import photos, library images, PDFs and other compatible files to quickly extract text, handwriting, tables and formulas. 2. Complex layout preservation Handle tables, columns, paragraph hierarchies, complex formulas and mixed layouts while preserving the original structure wherever possible. 3. Works online and offline Built-in on-device recognition works without a network connection. When online, use cloud services as needed for more complex content. 4. Flexible choice of recognition engines Choose an on-device engine, professional OCR service or leading large language model based on language, file type and layout complexity. Keys and data are protected. 5. Parallel task processing Run multiple recognition tasks at once to reduce waiting when processing images and files in batches. 6. Multiple conversion and export formats Export PDF, DOCX, Markdown, JSON and more for editing, archiving or use in other tools. Formats depend on the current version and membership tier. 7. Multi-platform support Use Lectio on iPhone, iPad, Mac and other supported platforms. Sign in with the same account across supported devices. 8. Flexible ways to use Lectio The trial and registered versions cover most everyday tasks. For higher limits, more parallel tasks and full export features, make a one-time purchase for lifetime membership. There is no auto-renewing subscription. —ABOUT THE BOUNDLESS TOOLS SERIES— Lectio is part of the Boundless Tools series. We reduce barriers across languages and cultures, helping you organize information, understand content and explore the world. The series includes: ● Lectio: image OCR, document organization and format conversion ● Translatio: companion text translation ● Auditio: speech recognition, pronunciation assessment and language learning ● Traditio: cross-platform file and clipboard transfer The tools work together through export, sharing and file transfer, connecting text recognition, translation, speech processing and file transfer. If you encounter a problem or would like to share a suggestion, contact us at: support@kaichenera.com

Screenshots

OCR Hero4 screens
Lectio4 screens

Verdict

The call

The clearest difference is update cadence: OCR Hero at every 4 days against Lectio's every 2 weeks. On price, ads, in-app purchases 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. OCR Hero sells 4 in-app purchases, starting at $4.99 per month and Lectio sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OCR Hero ships an update every 4 days, Lectio every 2 weeks. The most recent releases landed on September 13, 2026 and September 23, 2026 respectively.

Scorecard1 real difference · 5 level
OCR Hero versus Lectio: the parameters behind the verdict, then further details
ParameterOCR HeroLectio
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better17.0
Further details — not scored
Size2 MB60 MB
Age rating4+4+
Developer江慧 杨Shanghai Kaichen Jiyuan Technology Co., Ltd.

In-app purchases

4 purchases

OCR Hero

Subscriptions3
  • OCR Hero Pro Monthly$4.991 Month
  • OCR Hero Pro Quarterly$13.993 Months
  • OCR Hero Pro Yearly$51.991 Year
One-time1
  • OCR Hero Credit Pack$4.99
1 purchases

Lectio

One-time1
  • Lifetime Membership$6.99

Questions

Is OCR Hero free?
OCR Hero is free to download, with in-app purchases available.
Is Lectio free?
Lectio is free to download, with in-app purchases available.
Do OCR Hero or Lectio have ads?
Neither OCR Hero nor Lectio shows ads.
Which is updated more often, OCR Hero or Lectio?
OCR Hero ships an update every 4 days, and Lectio every 2 weeks. Most recently, OCR Hero was updated on September 13, 2026 and Lectio on September 23, 2026.

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