Comparison

Lyrn vs Skim

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

Head to head
About

Lyrn

Read full description

Business leaders, founders, investors, and researchers all need to keep pace with today's rapid growth of often technical & complex information and news. To keep up, and move forward in your career and field requires following research & new information in multiple sectors. It's not enough to get the headlines or read a social media post. To get an advantage, you need deeper insights, and analysis. Lyrn is your companion to help you track research & crucial developments in multiple business, investment and technical domains. Lyrn brings you curated, concise, ultra high quality, dynamic micro courses, with new courses added regularly. Our rigorous, expertly crafted micro courses are designed to help you rapidly take in key developments in key business sectors as well as in the underlying scientific research driving technology and business forward. Lyrn course are interactive, concise, and compelling, with advanced visuals, animations, and learning games that help you master complex topics quickly. Lyrn challenges you to explore and lock in new knowledge that can help put you ahead in your career, research, investments, business or other personal goals. Give it a try! Our catalog of deep courses is always growing. You wont find the same level of high quality deep content in any app!

About

Skim

Transform documents into bite-sized learning cards with AI. Choose from four learning modes, ask questions about terms, and track your progress. Ideal for students, researchers, and professionals.

Highlights
  • AI-generated learning cards
  • Multiple learning modes (Deep Understanding, ELI5, Memorize, Quick Review)
  • Ask AI questions about document terms
  • Progress tracking (streak, mastery, accuracy)
  • Supports PDF, Word, PowerPoint, text, and Markdown
  • No ads or data tracking
Read full description

Pick how you want to learn: Deep Understanding, ELI5, Memorize, or Quick Review. Skim's AI breaks the document into bite-sized cards in that mode. Upload any document — PDF, Word, PowerPoint, plain text, or Markdown and get tailored cards. Swipe any term to ask Skim about anything unclear, quiz yourself to see what stuck, and track your progress along the way. Same dopamine, actually useful. HOW IT WORKS 1. Upload a PDF, slide deck, doc, or notes 2. Skim's AI breaks it into bite-sized cards — each focused on a single idea 3. Swipe through. Tap any term to ask Skim for a deeper explanation 4. Quiz yourself to see what actually stuck 5. Track your streak and watch your progress unlock GREAT FOR • Students prepping for exams or working through textbooks • Researchers digesting papers and reports • Professionals navigating contracts, briefs, manuals, and decks • Self-learners working through online courses and books • Anyone who's collected docs they meant to read FOUR WAYS TO LEARN • Deep Understanding — comprehensive, concept-first • ELI5 — plain language and analogies • Memorize — quiz-dense, atomic facts for recall • Quick Review — punchlines only, for the refresh ASK SKIM ANYTHING Tap any term in a card for an instant explanation. Or type a follow-up question — Skim's AI assistant stays grounded in what the document actually says, so every answer ties back to your source. TRACK YOUR PROGRESS • Reading streak counter • Card mastery % per document • Quiz accuracy that finds your weak spots • Weekly activity at a glance SUPPORTED FORMATS PDF, PowerPoint (.pptx), Word (.docx), plain text (.txt), Markdown (.md) AI may make mistakes — Skim's cards are reading aids, not authoritative answers. Verify critical information against your source. PRO ($6.99/month or $69.99/year) • Unlimited document processing • 140 AI assistant questions per month ULTRA ($13.99/month or $139.99/year) • Everything in Pro • 280 AI assistant questions per month Cancel anytime in iOS Settings. PRIVACY FIRST No ads. No tracking. No selling your data. Your documents stay yours. Read our full policy at https://tryskim.app/privacy. Privacy Policy: https://tryskim.app/privacy Terms of Use: https://tryskim.app/terms Support: hello@tryskim.app

Screenshots

Lyrn4 screens
Skim4 screens

Verdict

The call

The clearest difference is ads: Skim at none against Lyrn's shown. On price, update cadence, 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. Lyrn sells 2 in-app purchases, starting at $15.99 per month and Skim sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lyrn ships an update monthly, Skim every 2 weeks. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 8 level
Lyrn versus Skim: the parameters behind the verdict, then further details
ParameterLyrnSkim
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyMonthlyEvery 2 weeks — better
AdsYesNo — better
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size30 MB10 MB
Age rating12+4+
DeveloperTaos Research CorporationDORUK SAVASAN

In-app purchases

2 purchases

Lyrn

Subscriptions2
  • Lyrn Monthly Unlimited Access$15.991 Month
  • Lyrn Annual Unlimited Access$99.991 Year
4 purchases

Skim

Subscriptions4
  • Pro Monthly$6.991 Month
  • Ultra Monthly$13.991 Month
  • Pro Annual$69.991 Year
Show 1 more
  • Ultra Annual$139.991 Year

Questions

Is Lyrn free?
Lyrn is free to download, with in-app purchases available.
Is Skim free?
Skim is free to download, with in-app purchases available.
Do Lyrn or Skim have ads?
Lyrn shows ads; Skim does not.
Which is updated more often, Lyrn or Skim?
Lyrn ships an update monthly, and Skim every 2 weeks. Most recently, Lyrn was updated on October 11, 2026 and Skim on October 7, 2026.

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