STRATA vs Knowfeed
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Knowfeed
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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
Verdict
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
Both are free to download. STRATA sells 4 in-app purchases, starting at $7.99 per month. Knowfeed asks for nothing beyond the download.
STRATA ships an update fortnightly, Knowfeed monthly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.
| Parameter | STRATA | Knowfeed |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 26 MB | 31 MB |
| Age rating | 4+ | 12+ |
| Developer | EVAN ASHTON MCDADE | Jonas Fancony |
In-app purchases
STRATA
- Scholar Monthly7 Days trial$7.991 Month
- Luminary Monthly7 Days trial$14.991 Month
- Scholar Yearly$59.991 Year
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- Luminary Yearly$119.991 Year
Knowfeed
No in-app purchases









