Comparison

Zin Flow vs Tertiary Scanner

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

Head to head
About

Zin Flow

Convert web articles into clean EPUB or Markdown files for offline reading and personal knowledge management. Save content from browsers or other apps, organize with tags, and search your library. Premium offers unlimited conversions and full offline access.

Highlights
  • Web article to EPUB conversion
  • Markdown export for PKM
  • Browser and share extensions
  • Offline reading mode
  • Tag-based organization
  • Full-text library search
  • Multi-article EPUB export
Features
Read full description

Zin Flow can discover similar articles on the current web page and batch-save your selections, while supporting offline reading and export to EPUB ebooks or Markdown documents. Collect valuable articles in one place and organize web content for long-term reading and archiving. Create better personal eBooks from the web: • Extract readable article content from web pages • Export clean EPUB files for long-form reading • Combine multiple articles into one eBook • Edit chapters before export • Customize the EPUB cover • Edit book information such as title, author, language, publication date, and publisher • Choose whether the table of contents appears as a reading page or only as navigation Save and read later: • Save text and images for offline reading • Add articles from other apps with the Share Extension • Keep a read-it-later library synced with iCloud • Use tags to organize topics, projects, and reading lists • Search across saved article content Export Markdown: • Export web articles as Markdown files • Preserve headings, paragraphs, lists, and links • Use saved content for notes, writing, research, or a personal knowledge base Browser and extension support: • Save pages from iPhone and iPad using the Share Extension • Discover similar articles on the current page with the browser extension and batch-save selected items to your library • Send the current page from a desktop browser to Zin Flow • Save the article content from pages you have already opened, including pages that require a signed-in session The free version includes basic conversion trials. Pro unlocks unlimited conversions, offline reading, watermark-free export, and more advanced capabilities. Zin Flow is designed for readers, researchers, developers, writers, and anyone who wants to keep web articles in a cleaner, more durable format. Your content is processed locally. Zin Flow does not upload your articles or collect personal reading data. Privacy Policy: https://wanyi.dev/en/zinflow/privacy Standard Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Tertiary Scanner

This app transforms your device into a powerful document scanner. It automatically detects edges, corrects perspective, and enhances scanned pages with various filters. Easily export documents as PDFs or JPGs and utilize built-in OCR for text recognition and search.

Highlights
  • Automatic edge detection and perspective correction
  • Multiple page scanning into single documents
  • Image enhancement filters
  • PDF and JPG export
  • On-device OCR for text recognition
  • Save to Photos, Files, or iCloud Drive
Features
Read full description

Scanner is a clean, fast, fully-offline document scanner. Point your camera at a page and it auto-detects the edges, corrects perspective, and crops for you — A4, Letter, receipts, business cards, notes, or whiteboards. Scan multiple pages into one document, then enhance each page with filters: Auto, White Document, Black & White, Denoise, Brighten, Sharpen Text, and Receipt mode. Export as a single- or multi-page PDF or as high-quality JPGs, and save straight to Photos, Files, or iCloud Drive. Built-in OCR recognises the text on every page so you can copy it, export it, and search your whole library by content. Share to AirDrop, Mail, Messages, WhatsApp, or print — all from the native iOS share sheet. Everything runs on-device: no account, no cloud, no tracking.

Screenshots

Zin Flow4 screens
Tertiary Scanner1 screens

Verdict

The call

The clearest difference is rating: Zin Flow at 5.0 against Tertiary Scanner's 1.0. Zin Flow also leads on update cadence (every 10 days vs every 5 weeks) and ratings volume (3 vs 1). Tertiary Scanner's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement 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. Zin Flow sells 3 in-app purchases, starting at $2.99 per month. Tertiary Scanner asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Zin Flow holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Zin Flow ships an update every 10 days, Tertiary Scanner every 5 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
Zin Flow versus Tertiary Scanner: the parameters behind the verdict, then further details
ParameterZin FlowTertiary Scanner
PriceFreeFree
Rating5.0 (3 ratings) — better1.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 10 days — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size33 MB1 MB
Age rating4+4+
Developer祎 万Alfred Ang

In-app purchases

3 purchases

Zin Flow

Subscriptions2
  • Pro - Monthly$2.991 Month
  • Pro - Yearly$12.991 Year
One-time1
  • Pro - Lifetime$19.99
None

Tertiary Scanner

No in-app purchases

Questions

Is Zin Flow free?
Zin Flow is free to download, with in-app purchases available.
Is Tertiary Scanner free?
Tertiary Scanner is free to download, with no in-app purchases.
Which has better reviews, Zin Flow or Tertiary Scanner?
Zin Flow is rated higher. Zin Flow averages 5.0 out of 5 from 3 ratings, while Tertiary Scanner averages 1.0 from 1 ratings.
Do Zin Flow or Tertiary Scanner have ads?
Zin Flow shows ads; Tertiary Scanner does not.
Which is updated more often, Zin Flow or Tertiary Scanner?
Zin Flow ships an update every 10 days, and Tertiary Scanner every 5 weeks. Most recently, Zin Flow was updated on October 28, 2026 and Tertiary Scanner on October 25, 2026.

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