Study Master vs ZenAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study Master
This app offers a comprehensive suite of tools for learning and academic success. It includes calculators, a dictionary, flashcards, science resources, and an AI study assistant. Unlock advanced features with a Pro subscription.
- Normal & Scientific Calculator
- Integrated Dictionary
- Vocabulary Flashcards
- Anatomy Images
- Meiosis & Mitosis Guides
- Offline Periodic Table
- AI Study Buddy
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Study Master is the study app that adapts to you. Pick your subjects — from high-school biology to graduate-level AI — and the whole app reshapes itself around them: your colors, your courses, your tools. LEARN, YOUR WAY • 12 subjects with 40 courses and 480+ practice questions: Biology, Chemistry, Math, Astronomy, Medicine, Engineering, Programming, AI & Machine Learning, Physics, Economics, Psychology, History • Test prep for the SAT, ACT, and AP Biology with exam-style questions and strategy • Choose your level — High School, College, Graduate, Professor, or Returning Learner — and lessons match your depth • Timed practice exams with grading and full answer review REMEMBER EVERYTHING • Flashcards with real spaced repetition (SM-2) that schedules reviews when you're about to forget • Import your decks from Quizlet or any spreadsheet in seconds; share decks as files • Turn any note, book chapter, or pasted text into a ready-made deck with AI YOUR SEMESTER, ORGANIZED • See Canvas assignments, Apple Calendar, Google Calendar, and Outlook in one Agenda • Send assignments straight to Apple Reminders • Add your classes with credit hours and see exactly how many study hours your week needs • Habits, streaks, and a GitHub-style activity heatmap keep you honest TOOLS FOR EVERY CLASS • Import PDFs and readings — highlight, and ask AI to explain any passage • Notes with document scanning (OCR) and Apple Pencil sketches • Writing Studio: live readability stats, spell check, and AI grammar fixes • Scientific calculator, graphing calculator, GPA calculator, citation builder (APA/MLA/Chicago) • Interactive periodic table, solar system explorer, and a 170-image anatomy atlas • Focus timer with Live Activities in the Dynamic Island, plus a beautiful full-screen Zen Clock AI STUDY HELP Connect your own Claude API key and get a tutor that knows your level: explanations, practice questions, summaries of your readings, and writing feedback. Your key stays in your device's Keychain. EVERYWHERE YOU STUDY iPhone, iPad, Mac, and Apple Watch — with iCloud sync, home-screen widgets, Siri Shortcuts, and support for 9 languages. PRIVATE BY DESIGN No ads. No tracking. No analytics. Your study data lives on your device and in your private iCloud — we can't read it. Study Master Pro unlocks every subject, the AI tutor, and the scientific calculator. Subscriptions renew automatically until cancelled; manage anytime in your App Store settings. Privacy policy: https://www.azekkani.com/apps/policies/privacy-policy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ZenAI
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Transform your study routine with ZenAI, the ultimate homework helper! Simply take a photo of your math problems, essays, or science tasks, and ZenAI uses advanced AI to extract the content and provide free hints to get you started. Need the full solution? Unlock step-by-step answers with credits, purchasable via in-app purchases. Perfect for students seeking an stress-free way to learn, ZenAI supports a variety of subjects and adapts to your needs. Stay zen while mastering your homework! Key Features: - Photo-Based Homework Help: Upload or snap a picture of any homework task. - Free Hints: Get instant guidance to solve problems on your own. - Full Answers: Unlock detailed solutions with credits. - Credit System: Buy credits in-app (1, 5, or 10 packs) to access full answers. - User-Friendly: Simple interface designed for students of all ages. Download ZenAI today and make studying a breeze!
Screenshots
Verdict
The clearest difference is update cadence: ZenAI at every 2 days against Study Master's every 11 months. Study Master's advantage is device support (4 vs 1). On price, ads, in-app purchases and iOS requirement 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. Study Master sells 4 in-app purchases, starting at $0.99 per 7 days and ZenAI sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Study Master ships an update every 11 months, ZenAI every 2 days. Both last shipped on October 24, 2026.
| Parameter | Study Master | ZenAI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 11 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone |
| Requires iOS | 17.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 33 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Adam Nawfal Zekkani | ZenStudy Technologies - FZCO |
In-app purchases
Study Master
- Weekly Subscription$0.997 Days
- Monthly Subscription$2.991 Month
- 6 Month Subscription$14.996 Months
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- Yearly Subscription$29.991 Year
ZenAI
- 1 Credit$0.99
- 5 Credits$3.99
- 10 Credits$5.99









