Comparison

iFlow note vs ReadTrace Pro

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

Head to head
About

iFlow note

Features
Read full description

iFlow note is a note-taking app based on Niklas Luhmann's Zettelkasten method. It uses three types of cards to help you separately capture inspirations, literature excerpts, and permanent knowledge, while intelligently linking them in the background. Don't worry about building a "perfect system" from day one. Just start by recording that one thought you have now. Organizing, connecting, and writing will naturally become easier later. Who is it for: Creative professionals who often get fleeting ideas: creators, product managers, engineers, indie developers. Students and researchers who want to systematically organize their reading notes and paper insights. Anyone looking to build a personal knowledge base and accumulate material for writing. The three note types allow for clear distinction at a glance: Inspiration Cards: For capturing fleeting thoughts, one-liners, and voice snippets. Supports voice recording, which can be transcribed to text later for review. Literature Cards: For excerpts from books, articles, or web pages, plus your own brief understanding. Supports text extraction and photo capture (keeping original screenshots). Permanent Cards: For rewriting ideas and conclusions in your own words to form reusable knowledge cards. Supports Markdown, ideal for longer content, article outlines, and drafts. Quick Capture: Create Spark, Literature, or Permanent cards directly from the bottom menu on the home screen. Multiple input methods (text, voice, image) prioritize ease-of-use in the moment. Tagging & Search: Use tags to categorize cards by theme, project, or context. Search across titles, content, and tags to quickly rediscover past ideas. Card Linking: Build a knowledge network by linking related Spark, Literature, and Permanent cards. View "Linked Cards" in the detail page to navigate your knowledge web naturally. Review & Reminders: Set review deadlines for Spark and Literature cards to avoid forgetting them. Receive reminders to periodically review cards and upgrade them to Permanent Cards. Schedule spaced repetition reviews for Permanent Cards to reinforce understanding. Trash & Archive: Restore accidentally deleted cards from Trash. Archive infrequently used but valuable cards to reduce clutter. PRO Benefits (Unlocked via Subscription): The free version is sufficient to get started. PRO offers more capacity for power users: Unlimited notes. Record multiple audio segments per Voice Card. Attach multiple images per Image Card. iCloud Sync & Backup: Keep data consistent across devices, with export option for Permanent Cards as Markdown files. (Specific prices and terms are as displayed within the app. Subscription can be canceled at any time.) Privacy & Data: Local-first by default: Your data is stored on your device and your personal iCloud. Minimal data collection: We do not collect unnecessary personal information or engage in excessive tracking. Detailed Terms of Service and Privacy Policy can be viewed in the app's settings page. Subscription: Monthly PRO: $0.99 per month (USD) Yearly PRO: $0.99 per year (USD) Lifetime PRO: $3.99 (USD) Links: Terms of Service: https://iflownote.netlify.app/#terms Privacy Policy: https://iflownote.netlify.app/#privacy Support: https://iflownote.netlify.app/#home

About

ReadTrace Pro

Save articles from the web for offline reading with a clean, serif-first interface. Organize saved content with custom collections and find anything with intelligent on-device search. Enjoy a private, ad-free reading experience designed for focused consumption.

Highlights
  • Save articles from web
  • Offline reading
  • Custom collections
  • Semantic search
  • Auto-tagging
  • iCloud backup
  • Ad-free experience
Features
Read full description

A quiet, serif-first read-later app for people who treat long-form articles like books. — Save anything from the web — Tap "share" in Safari, or paste a URL inside the app. ReadTrace pulls out the body and images, strips the chrome, and saves a clean copy to your private library. Once it's saved, the network can vanish. Articles, images, and fonts are cached for fully offline reading. — Read on cream paper — Every article renders in Fraunces — a warm contemporary serif — over a soft cream background that's easier on the eyes than stark white. No ads, no related stories, no tap-to-load-more. The reader remembers your scroll position so you can return weeks later and pick up exactly where you left off. — Organize favorites with collections — Drop favorites into custom buckets — "Work", "Travel", "Things to write about someday". Each collection is its own shelf inside the Favorites tab. Tap a chip to narrow the library; tap it again to clear. — Search what you remember, not what you typed — Built-in semantic search uses Apple's on-device language embeddings to understand intent. Search "AI startups" and find articles about Vibe Coding training camps — no exact keyword required. Combined with literal substring matching across titles, authors, hostnames and tags, you'll find anything you've read. — Auto-tagging via on-device NLP — Every saved article is read once by Apple's NaturalLanguage framework and labeled with 3–5 keyword tags. As your library grows from ten articles to a thousand, tags keep it browsable. — Reading time, done right — Counts Chinese characters and Latin words separately at native reading speeds, so a long bilingual article gets an honest minute estimate instead of an English formula glued onto Chinese prose. — A safety net for what you save — Deleted articles don't vanish. They sit in the Recycle Bin for 30 days, then quietly clear themselves out. Restore anything with one tap — no second-guessing your gestures. — iCloud backup — A single backup file holds every article and every cached image. Restore on a new phone in seconds — fully offline-restorable, no servers to depend on. — Built for privacy — No accounts. No analytics. No tracking pixels. Your reading is between you and your phone. iCloud Drive is the only network endpoint we touch, and only if you choose to back up. — Built for iOS — Safari Share Extension. App Intents. Dynamic Type-aware reader. SwiftData persistence. Light-only by design — the cream palette is the point. — Quietly made — ReadTrace Pro is small. One developer, one design system, one belief: the web is full of writing worth reading carefully, and that writing deserves a calm, paper-feeling home you can return to. For people who want a smaller, quieter library — not an algorithmic feed.

Screenshots

iFlow note4 screens
ReadTrace Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: ReadTrace Pro at none against iFlow note's 3. ReadTrace Pro also leads on update cadence (every 3 days vs every 2 weeks). On price, ads, 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. iFlow note sells 3 in-app purchases, starting at $0.99 per month. ReadTrace Pro asks for nothing beyond the download.

UpkeepUpdate frequency

iFlow note ships an update every 2 weeks, ReadTrace Pro every 3 days. The most recent releases landed on August 25, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
iFlow note versus ReadTrace Pro: the parameters behind the verdict, then further details
ParameteriFlow noteReadTrace Pro
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size5 MB2 MB
Age rating4+4+
Developer斌 胡熵析云枢网络科技

In-app purchases

3 purchases

iFlow note

Subscriptions2
  • PRO Monthly Plan$0.991 Month
  • PRO Yearly Plan$1.991 Year
One-time1
  • PRO Lifetime Plan$6.99
None

ReadTrace Pro

No in-app purchases

Questions

Is iFlow note free?
iFlow note is free to download, with in-app purchases available.
Is ReadTrace Pro free?
ReadTrace Pro is free to download, with no in-app purchases.
Do iFlow note or ReadTrace Pro have ads?
Neither iFlow note nor ReadTrace Pro shows ads.
Which is updated more often, iFlow note or ReadTrace Pro?
iFlow note ships an update every 2 weeks, and ReadTrace Pro every 3 days. Most recently, iFlow note was updated on August 25, 2026 and ReadTrace Pro on September 7, 2026.

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