Comparison

WordUp vs My Reading Stack

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

Head to head
About

WordUp

This app uses AI to personalize your English vocabulary learning journey. It offers interactive challenges, AI-powered practice with a virtual teacher and celebrities, and detailed word pages with AI-generated visuals. Track your progress and expand your word knowledge effectively.

Highlights
  • AI-powered personalized learning map
  • 25,000 prioritized English words
  • 9 interactive challenge types
  • Spaced repetition learning
  • AI English teacher (Lexi)
  • Fantasy Chat with AI celebrities
  • AI-generated word images
Features
Read full description

WordUp: Learn English Vocabulary Master English vocabulary with WordUp, the AI-powered app revolutionizing language learning! With over 5 million users worldwide, WordUp offers a personalized, engaging, and effective way to expand your English vocabulary. - Personalized Learning * AI-powered Knowledge Map tailored to your needs * 25,000 most common English words, prioritized for you * Customized word lists based on your interests and goals - Interactive Challenges * 9 diverse challenge types to reinforce learning * Spaced repetition for long-term retention * Pronounce, spell, define, and use words in context - AI-Powered Features * Chat with Lexi, your personal AI English teacher * Practice with AI celebrities in Fantasy Chat * Receive instant feedback on your writing - Comprehensive Word Pages * Detailed definitions, pronunciations, and usage examples * AI-generated images for better retention * Pro tips for real-world application - Additional Features * Idioms and phrasal verbs with visual aids * Chrome extension for learning while browsing * Multi-device support and offline mode * Progress tracking and social features - Award-Winning App * 2020 British Council Best Digital Innovation * 2020 International Business Awards Gold Stevie® Winner * Multiple industry accolades for innovation and excellence - User-Approved * 4.7+ star rating across app stores * Millions of satisfied learners worldwide Whether you're preparing for exams, advancing your career, or simply passionate about improving your English, WordUp is your ultimate vocabulary companion. Download now and transform your English skills! Free and Pro versions are available. Unlock unlimited access and premium features with WordUp Pro. Start your journey to English mastery today with WordUp!

About

My Reading Stack

Features
Read full description

A reader for the papers you actually have to read: for a class, a lab meeting, a review or your own research. More than a plain PDF viewer, less work than a reference manager. READ COMFORTABLY • Pages fill the screen. Trim Margins crops away blank borders so the text is bigger. • Double-tap a column to zoom into it; double-tap again to zoom back out. • Light, dark and sepia reading, and two pages side by side on a wide screen. • The title bar shows where you are: page, and the section you're in. • Jump to any section, page or note from Contents. • Find in Paper shows every match and steps through them. KEEP WHAT MATTERS • Highlight and add notes from the text selection menu. • Tag them: Key finding, Method concern, Cite this, Follow up, Disagree, Connects to. Filter your notes by tag. • Copy with citation: copied text comes with an in-text citation, like (Bartolucci et al., 2025, p. 4). • On iPad, highlight and write with Apple Pencil. • Export your notes as Markdown or text, grouped by tag, or as an annotated PDF. COMPARE PAPERS • The literature matrix puts a group of papers in one table: each paper's aim, material, approach, result and your own notes. • Fill it in with AI, then edit any cell. • Export it as CSV or copy it as a table into Numbers, Excel, Pages or Word. A LIBRARY THAT ORGANIZES ITSELF • Paper details (exact title, authors, journal, year) are looked up from the paper's DOI or arXiv ID. • On-device intelligence writes a one-line summary, finds the paper's sections and picks out its topics. • Group papers into Queue, Reading and Done, star favorites, and browse by topic. Reading progress is shown for every paper. • Search by title, author or topic, or describe what you're looking for and let on-device AI find it. ASK ABOUT A PAPER • Summarize a paper or ask questions about it with Apple Intelligence, on your device. • Or use your own AI service for deeper answers. EVERYWHERE YOU READ • Papers, highlights and notes sync through your iCloud across iPhone, iPad and Mac. • Add PDFs from Files, from the share sheet in any app, or with File ▸ Import on the Mac. • On a Mac, keep Contents open in an inspector and the literature matrix in its own window. • On iPhone Duo, an unfolded phone becomes an open book, with two pages on either side of the fold. PRIVATE BY DESIGN • No accounts, no tracking, no analytics, no servers. • Summaries, sections and topics are made on your device. • To look up paper details, only the paper's public DOI or arXiv ID is sent (to Crossref, DataCite or arXiv). You can turn this off in Settings. • Paper text is sent to Anthropic only if you add a Claude API key and use Ask Claude. My Reading Stack is free, made by one developer. If it helps your reading, there's a tip jar in Settings.

Screenshots

WordUp4 screens
My Reading Stack4 screens

Verdict

The call

The clearest difference is ads: My Reading Stack at none against WordUp's shown. My Reading Stack also leads on update cadence (every 2 days vs every 3 weeks). WordUp's advantage is iOS requirement (15.6 vs 26.0). On price, 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. WordUp sells 10 in-app purchases, starting at $1.99 per month and My Reading Stack sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WordUp ships an update every 3 weeks, My Reading Stack every 2 days. The most recent releases landed on November 10, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 7 level
WordUp versus My Reading Stack: the parameters behind the verdict, then further details
ParameterWordUpMy Reading Stack
PriceFreeFree
Rating4.8 (14K ratings) — better—
Positive reviews67.9% of reviews—
Number of ratings14K — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.6 — better26.0
Further details — not scored
Size72 MB8 MB
Age rating12+4+
DeveloperGeeksRichard Pak

Bugs and requests

WordUp

Reported bugs

5 issues
  • Login and account issues after updates
  • Inability to access subscribed content
  • Freezing and crashing during use
  • Syncing problems across devices
  • Inconsistent performance on larger screens

Requested features

5 requests
  • Add spelling practice and testing
  • Provide more customization options
  • Implement audio narration for word lists
  • Include countable/uncountable noun indicators
  • Allow users to add personal word lists

My Reading Stack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

WordUp

Subscriptions9
  • Charitable Plan$1.991 Month
  • 1 month's subscription7 Days trial$7.491 Month
  • Quarterly plan (deprecated)7 Days trial$7.493 Months
Show 6 more
  • Standard Monthly7 Days trial$7.991 Month
  • Pro Monthly$9.991 Month
  • Pro Monthly$10.991 Month
  • Pro Yearly7 Days trial$49.001 Year
  • Pro Yearly14 Days trial$49.001 Year
  • Standard Yearly$79.991 Year
One-time1
  • Pro Lifetime$149.99
3 purchases

My Reading Stack

One-time3
  • Tip jar$0.99
  • Tip jar$2.99
  • Tip jar$4.99

Questions

Is WordUp free?
WordUp is free to download, with in-app purchases available.
Is My Reading Stack free?
My Reading Stack is free to download, with in-app purchases available.
Do WordUp or My Reading Stack have ads?
WordUp shows ads; My Reading Stack does not.
Which is updated more often, WordUp or My Reading Stack?
WordUp ships an update every 3 weeks, and My Reading Stack every 2 days. Most recently, WordUp was updated on November 10, 2026 and My Reading Stack on November 9, 2026.

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