Comparison

4Studies vs AI Detector & Plagiarism Check

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

Head to head
About

4Studies

This app helps students and educators organize classes, assignments, and deadlines with an intuitive interface. It also allows for the creation of customized practice tests for university and high school exams.

Highlights
  • Class and assignment organization
  • Customizable notes and reminders
  • Academic calendar view
  • University practice test creation
  • High school practice test creation
  • Intuitive user interface
Features
Read full description

Plan your studies, turn content into practice, and keep your academic routine in one place. 4Studies combines a study planner, class schedule, notes, tasks, flashcards, AI-generated practice exams, and Live Quiz to help you study with more structure and consistency. PLAN YOUR ROUTINE • Add subjects, academic terms, and class schedules. • View your calendar by day, week, or month. • Organize exams, events, meetings, and deadlines. • Create recurring events and receive reminders. • See upcoming commitments and priorities from the home screen. CAPTURE AND FIND YOUR CONTENT • Create notes with formatted text, lists, and checklists. • Add tags, favorites, and subject links. • Search by title, content, or tags. • Attach images and PDF files. • Turn a note into a task without losing your content. MANAGE TASKS AND PROJECTS • Set priorities, deadlines, statuses, and checklists. • Connect tasks to subjects or projects. • Filter pending, overdue, and completed items. • Track project progress from planning to delivery. PRACTICE WITH AI QUIZZES • Generate practice exams from a topic, text, or selected notes. • Practice with different question formats. • Review your answers and explanations after each attempt. • Keep a personal error notebook for focused revision. • Turn incorrect answers into flashcards. • Repeat an attempt or generate a new round to keep improving. PLAY A LIVE QUIZ Create a room, choose the topics, and invite classmates or friends to answer in real time. Questions are generated in the language selected by the host, with support for Portuguese, English, and Spanish. Live Quiz includes different difficulty levels, question formats, round rankings, and room support for up to 50 participants. TRACK YOUR PROGRESS Enable only the academic modules you need: • Grades and weighted averages. • Attendance tracking. • Flashcards created manually or from your study content. • Practice history and progress between attempts. MAKE IT YOURS Choose light, dark, or automatic appearance. Adjust sound effects and vibration, and use device accessibility settings including larger text and reduced motion. Plan, practice, and keep moving forward with 4Studies. LICENSED APPLICATION END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

AI Detector & Plagiarism Check

This app helps ensure your writing is original and human-made. It detects AI-generated content and checks for plagiarism against millions of online sources. Get detailed reports and protect your intellectual property.

Highlights
  • AI text detection (ChatGPT, GPT-4, Claude)
  • Plagiarism scanning against online sources
  • Import text via clipboard or file upload
  • Cross-app integration via share menu
  • Detailed reports with similarity scores
  • Multilingual support
Features
Read full description

Check any text before you submit or publish it: see whether it looks AI-generated and how original it is. TextAdviser puts both checks in one app. New: check images too. Find out whether a picture was made by AI or is a real photo. Made for students, teachers, writers and editors: essays, papers, theses and articles. THREE MODES • AI Detector: estimates whether a text was written by AI, highlights suspicious passages and gives a verdict. • Plagiarism: shows the uniqueness percentage, highlights matches and links to the sources found on the internet. • AI Image: estimates whether a picture was made by AI or is a real photo, shows the probability and reads provenance labels in the file when they are present. Please note: AI detection is a probability estimate, not proof. Treat the result as a signal and review the highlighted passages yourself. ADD TEXT ANY WAY YOU LIKE • Type or paste from the clipboard • Import TXT, PDF (with a text layer), RTF and DOCX files • Send text or a file from other apps through the Share menu • Character and word counter with a live hint on how much to add or cut (at least 100 characters for plagiarism, 250 for AI detection) • Images: choose from Photos or Files, or paste. JPG, PNG, WebP and HEIC AFTER THE CHECK • Copy the result or send it through Share • History of your checks in all modes • A notification when a long check is finished The app is available in English, Russian, German, Spanish, French, Italian and Portuguese (Brazil and Portugal). WITHOUT A SUBSCRIPTION • Up to 10,000 characters per check • 5 checks per day • 5 images per day • Banner ads PRO: MONTHLY SUBSCRIPTION • No ads • Up to 200,000 characters per plagiarism check and up to 1,000,000 per AI check • Images without a daily limit: one image uses 100 characters • 1,000,000 characters every month • Even if your balance runs out, you can still check up to 10,000 characters at a time • No trial period: the first payment is charged as soon as you confirm the purchase PLUS: ONE-TIME TOP-UP • Adds 1,000,000 characters to your balance. It is not a subscription and does not renew. SUBSCRIPTION DETAILS • Payment is charged to your Apple Account when you confirm the purchase. • PRO renews automatically every month unless you cancel it at least 24 hours before the end of the current period. The renewal is charged within the last 24 hours of the period. • You can manage or cancel the subscription at any time in Settings > [your name] > Subscriptions. After you cancel, PRO stays active until the end of the paid period and no further charges are made. Texts and images are sent to our server for analysis. An image file is deleted after the check; a small thumbnail and the result stay with the check record. Details are in the Privacy Policy. A problem with a purchase or a check? Write to us: https://textadviser.com/contact Privacy Policy: https://textadviser.com/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

4Studies4 screens
AI Detector & Plagiarism Check4 screens

Verdict

The call

The clearest difference is in-app purchases: 4Studies at none against AI Detector & Plagiarism Check's 2. 4Studies also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.1 vs 17.0). AI Detector & Plagiarism Check's advantage is ratings volume (6 vs 1). On price, rating, 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. AI Detector & Plagiarism Check sells 2 in-app purchases, starting at $3.99 per month. 4Studies asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for 4Studies against 4.0 for AI Detector & Plagiarism Check. That said, the two scores are not equally well evidenced: AI Detector & Plagiarism Check has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

4Studies ships an update every 2 days, AI Detector & Plagiarism Check every 3 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

Scorecard5 real differences · 5 level
4Studies versus AI Detector & Plagiarism Check: the parameters behind the verdict, then further details
Parameter4StudiesAI Detector & Plagiarism Check
PriceFreeFree
Rating4.0 (1 ratings)4.0 (6 ratings)
Positive reviews—0.0% of reviews
Number of ratings16 — better
Update frequencyEvery 2 days — betterEvery 3 weeks
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size119 MB8 MB
Age rating+44+
DeveloperSSRC TIMaksim Gusev

Customer experience

4Studies

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

AI Detector & Plagiarism Check

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

4Studies

No in-app purchases

2 purchases

AI Detector & Plagiarism Check

Subscriptions1
  • Professional version$3.991 Month
One-time1
  • Adding 1,000,000 characters$3.99

Questions

Is 4Studies free?
4Studies is free to download, with no in-app purchases.
Is AI Detector & Plagiarism Check free?
AI Detector & Plagiarism Check is free to download, with in-app purchases available.
Which has better reviews, 4Studies or AI Detector & Plagiarism Check?
4Studies and AI Detector & Plagiarism Check are both rated 4.0 out of 5 on the App Store, from 1 and 6 ratings respectively.
Do 4Studies or AI Detector & Plagiarism Check have ads?
Both 4Studies and AI Detector & Plagiarism Check show ads.
Which is updated more often, 4Studies or AI Detector & Plagiarism Check?
4Studies ships an update every 2 days, and AI Detector & Plagiarism Check every 3 weeks. Most recently, 4Studies was updated on November 4, 2026 and AI Detector & Plagiarism Check on November 5, 2026.

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