Study AI vs Didactus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study AI
This app uses AI to help students understand complex subjects, solve math problems, and improve writing. It offers 24/7 AI support for academic queries and acts as a resource for students, educators, and scholars.
- AI-powered subject comprehension
- Scan textbook problems
- 24/7 AI academic support
- Math problem assistance
- Grammar checking
- Up-to-date information
Read full descriptionHide full description
Welcome to our pioneering educational application, meticulously crafted to streamline and enhance your scholastic journey. Our app harnesses state-of-the-art technology to facilitate swift comprehension of diverse subjects, including intricate mathematical concepts. You can effortlessly scan problems from your textbooks or notes. At Study AI, we firmly believe in fortifying your learning experience. Our dedicated AI support is at your disposal 24/7 to assist with any queries or challenges you may encounter during your academic pursuits. Whether you seek assistance with mathematical conundrums or require a meticulous grammar check, we offer comprehensive solutions to guide you through the intricacies of each problem. Our AI-driven system is in a perpetual state of evolution, ensuring you access the most precise and current information. Whether you are a student, educator, or lifelong scholar, our application serves as an indispensable resource to propel you toward academic excellence. Embrace the transformative capabilities of AI today! Study AI PRO PLAN Features • Unlimited access • 2x faster query response times Billing • Payment Payment will be debited from your iTunes Account upon confirmation of purchase. All premium subscriptions will be automatically renewed at the end of each billing cycle. To avoid nonrefundable auto-renewals, cancellation requests must be submitted at least 24 hours prior to the expiration of the current subscription period. Cancellations will take effect at the conclusion of the ongoing subscription term. You can manage and disable auto-renewal in your Apple Account Settings. • PRO Plan Options Commencement or termination of a premium plan must be carried out via the iTunes App Store and may be subject to local sales tax. Please consult your app store's Terms of Service for tax details and applicability. • Refunds Please note that refunds are not available post-purchase. Other • Study AI app reserves the right to adjust pricing for its products and services in the future. • Terms of Service: https://studyhelper.xyz/terms-and-conditions.html • Privacy Policy: https://studyhelper.xyz/privacy-policy.html
Didactus
Read full descriptionHide full description
Didactus is a high-yield study platform built for high-stakes exams where understanding matters more than memorization. It focuses on mastering core concepts, prioritization frameworks, and exam-level reasoning to ensure you study smarter, not longer. Current Focus: LVN & RN NCLEX Preparation, Didactus is purpose-built for LVN & RN students. Every question is designed to teach the why behind every answer through: - Targeted Questions: Practice with exam-style content. - Domain-Based Learning: Identify specific strengths and knowledge gaps. - Clinical Reasoning: Master safety, scope, and decision-making frameworks. The Future of exam mastery, Didactus is a modular platform expanding into professional, medical, and licensure exams. Future standalone modules will include: - Healthcare: NP Certification, MCAT, USMLE, PANCE, and NAPLEX. - Law: Bar Exam, LSAT, and MPRE. - Graduate Testing: GRE, GMAT, DAT, and OAT. Built for learners by real educators, move beyond brute-force memorization. Didactus is for professionals who want to understand the patterns and logic required to pass the world's most difficult exams. Whether you are entering nursing or preparing for your next professional milestone, Didactus scales with your ambition.
Screenshots
Verdict
The clearest difference is update cadence: Study AI at every 4 days against Didactus's every 6 weeks. On price, ads, 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
Both are free to download. Study AI sells 6 in-app purchases, starting at $6.99 per 7 days and Didactus sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Study AI ships an update every 4 days, Didactus every 6 weeks. Both last shipped on October 14, 2026.
| Parameter | Study AI | Didactus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 days — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 71 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | 聪 杭 | KEITH MICHAEL BLEVINS |
In-app purchases
Study AI
- Study AI - Weekly$6.997 Days
- Study AI - Weekly7 Days trial2 variants$9.997 Days
- Study AI - Monthly$19.991 Month
Show 3 moreShow fewer
- Study AI - Yearly$34.991 Year
- Study AI - Yearly$59.901 Year
- Study AI - Yearly$59.991 Year
Didactus
- LVN NCLEX Module$39.99
- Registered Nurse NCLEX Prep$69.99









