Comparison

STRATA vs Knowfeed

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

Head to head
About

STRATA

This app transforms any subject into a comprehensive, structured learning course in seconds. It generates original content, including modules, lessons, definitions, and quizzes, tailored to your chosen depth and pace. Explore diverse topics from history to finance with in-depth prose and interactive elements.

Highlights
  • AI-generated custom courses
  • In-depth lessons and definitions
  • End-of-course quizzes
  • Adjustable text complexity
  • AI assistant for questions
  • Audio lesson playback
  • Spaced repetition review
Features
Read full description

STRATA turns any subject into a full, structured course — in seconds. Type what you want to learn. Set how deep you want to go. STRATA builds a complete curriculum around it: real modules, full lessons, key concepts, definitions, notable passages, and a final quiz. No pre-packaged content. No browsing a catalog. Just your curiosity, and a course built for exactly that. LEARN ANYTHING History, physics, philosophy, finance, literature, medicine, design, law — if you can describe it, STRATA can teach it. The AI builds an original course from scratch, written at the depth and pace you choose. BUILT FOR DEPTH, NOT DISTRACTION Every lesson reads like it was written by someone who genuinely cares about the subject. Long-form prose, precise definitions, pull quotes from real thinkers, citations, formulas, and reflection prompts that make you stop and think. FREE WITH EVERY ACCOUNT — 1 AI-generated course per month — Full lesson content: prose, definitions, key points, pull quotes, citations — End-of-course quiz — Light and dark mode, adjustable text complexity SCHOLAR — $7.99/month or $64.99/year (auto-renewable) — 5 courses per month — Ink AI assistant (50 messages/month) — ask questions about what you're studying — Audio reading — listen to lessons in four natural voices — Lesson Connections — see how your courses relate to each other — Module comprehension checks — Full public library access LUMINARY — $14.99/month or $119.99/year (auto-renewable) — Unlimited courses per month — Ink AI assistant (200 messages/month) — Priority AI generation — Public course sharing — Full spaced repetition review system — All Scholar features included Subscriptions auto-renew monthly or annually. Cancel anytime in Settings → Apple ID → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://koatechapps.com/privacy

About

Knowfeed

Features
Read full description

knowfeed is the fastest way to become a more curious person. Swipe through short, verified facts from expert publishers — on science, history, culture, business, and more. Each one is written to stick. LEARN IN SECONDS Facts are written short enough to read in a moment, deep enough to make you think. No filler, no noise. BUILD A HABIT Your daily streak tracks how often you show up. XP and levels grow with every fact you read. Badges mark the milestones. FOLLOW WHAT MATTERS Follow topics and publishers you trust. Your feed becomes more personal the more you read. SAVE AND COLLECT Save facts you want to remember. Group them into collections and share them with others. SEE HOW YOU COMPARE View friends' reading streaks, levels, topic breakdowns, and earned achievements on their public profile. knowfeed is free to read. No ads inside the reader — just facts.

Screenshots

STRATA4 screens
Knowfeed3 screens

Verdict

The call

The clearest difference is in-app purchases: Knowfeed at none against STRATA's 4. Knowfeed also leads on iOS requirement (15.1 vs 26.0). STRATA's advantage is update cadence (fortnightly vs monthly). On price, ads 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. STRATA sells 4 in-app purchases, starting at $7.99 per month. Knowfeed asks for nothing beyond the download.

UpkeepUpdate frequency

STRATA ships an update fortnightly, Knowfeed monthly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
STRATA versus Knowfeed: the parameters behind the verdict, then further details
ParameterSTRATAKnowfeed
PriceFreeFree
Rating5.0 (2 ratings) — better
Positive reviews100.0% of reviews
Number of ratings2 — better
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS26.015.1 — better
Further details — not scored
Size26 MB31 MB
Age rating4+12+
DeveloperEVAN ASHTON MCDADEJonas Fancony

In-app purchases

4 purchases

STRATA

Subscriptions4
  • Scholar Monthly7 Days trial$7.991 Month
  • Luminary Monthly7 Days trial$14.991 Month
  • Scholar Yearly$59.991 Year
Show 1 more
  • Luminary Yearly$119.991 Year
None

Knowfeed

No in-app purchases

Questions

Is STRATA free?
STRATA is free to download, with in-app purchases available.
Is Knowfeed free?
Knowfeed is free to download, with no in-app purchases.
Do STRATA or Knowfeed have ads?
Neither STRATA nor Knowfeed shows ads.
Which is updated more often, STRATA or Knowfeed?
STRATA ships an update fortnightly, and Knowfeed monthly. Most recently, STRATA was updated on September 18, 2026 and Knowfeed on September 14, 2026.

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