STRATA vs Amend
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
Amend
This AI-powered whiteboard tutor helps students understand STEM concepts. It analyzes handwritten work, provides feedback, and guides study priorities. Get live voice assistance and track progress through structured lessons and practice sessions.
- Handwritten input with finger or Apple Pencil
- Feedback on handwritten and typed work
- Course and material-based practice
- Review readiness estimates
- Live voice assistance
- Progress tracking
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Amend is an AI STEM tutor that works with your process, not just your final answer. Write each step on a whiteboard, get focused feedback, and turn your course materials into multi-step practice. PRACTICE BUILT AROUND YOUR COURSE Add a STEM subject or upload course materials. Move through structured lessons, create focused practice, and keep your work connected to what you are learning. SHOW YOUR WORK Solve problems with Apple Pencil, your finger, typed answers, or an attached homework image. Amend supports short multiple-choice answers as well as multi-step written work. GET FEEDBACK ON EACH STEP Amend can recognize handwritten work, evaluate intermediate reasoning, and explain where an answer went off track. Ask for voice help without leaving your workspace. KNOW WHAT TO REVIEW NEXT Track completed lessons and practice, review readiness estimates, and focus on the skills that need more attention. FEATURES • Handwritten and typed STEM practice • Multi-step problems shaped by courses and materials • Feedback connected to your working steps • Voice tutoring while you study • Progress and readiness estimates • Cross-device course and progress sync SUBJECTS Math, algebra, calculus, statistics, physics, chemistry, and discrete mathematics. AI-generated tutoring, grading, and readiness estimates can be wrong. Verify important results against your instructor and course materials. Amend does not guarantee grades or exam outcomes. Amend is for learners age 13 and older. Learners under 18 should use it with permission from a parent, guardian, school, or other responsible adult. Privacy: https://getamend.com/privacy Terms: https://getamend.com/terms Support: https://getamend.com/support
Screenshots
Verdict
The clearest difference is update cadence: Amend at every 4 days against STRATA's fortnightly. Amend also leads on iOS requirement (16.4 vs 26.0). On price, rating, review sentiment and ratings volume 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 and Amend sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for STRATA against 5.0 for Amend. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
STRATA ships an update fortnightly, Amend every 4 days. The most recent releases landed on October 22, 2026 and October 14, 2026 respectively.
| Parameter | STRATA | Amend |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 6 — better |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 26.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 26 MB | 71 MB |
| Age rating | 4+ | 12+ |
| Developer | EVAN ASHTON MCDADE | Rithvik Tripuraneni |
Customer experience
STRATA
Amend
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
Amend
- BoardTutor Plus$9.991 Month
- BoardTutor Pro$19.991 Month







