Comparison

Wajibi AI vs Rex

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

Head to head
About

Wajibi AI

Features
Read full description

Stuck on your Arabic homework? Meet Wajibi AI—your 24/7 personalized study companion designed to solve exercises, summarize lessons, and boost your speaking skills. Whether you're tackling complex grammar, reading comprehension, or new vocabulary, Wajibi AI provides instant answers, step-by-step explanations, and real-time guidance. Simply snap a photo of your page and master Arabic effortlessly! SCAN, LEARN, AND PRACTICE IN A FLASH No more struggling with complex Arabic keyboards. Take a picture of any worksheet, textbook page, or handwritten note: • On Exercise Pages: The AI instantly analyzes the content and delivers precise answers along with clear, educational explanations. • On Lesson Pages (text, grammar, or vocabulary): The AI explains the concept and generates custom practice exercises with full answer keys to test your knowledge. STUDY AT YOUR OWN PACE Choose your preferred study mode for custom-generated exercises: • Casual Mode: Generates 1 practice exercise per lesson. • Warrior Mode: Generates 2 practice exercises to help you master the material. PRACTICE SPEAKING WITH YOUR VOICE TUTOR Go beyond written answers! Wajibi AI features an interactive voice chat mode. Read texts aloud, validate your skills, and perfect your pronunciation. Have live conversations with your AI tutor and receive immediate feedback. It’s like having a native private tutor right in your pocket. PERFECT FOR STUDENTS AND PARENTS For Students: Ace your Arabic classes, prep for exams stress-free, and build confidence in both reading and speaking at your own speed. For Parents: Don't speak Arabic? No problem! Easily support your children's education by scanning their homework to get accurate translations and step-by-step explanations. KEY FEATURES: • Smart Camera Recognition: Fast, accurate scanning of Arabic print and handwriting. • Instant Solutions & Quiz Generation: Auto-solve exercises or create custom practice quizzes with answer keys. • Custom Study Pacing: Pick Casual or Warrior Mode depending on your goals. • Interactive Voice Coaching: Immersive pronunciation feedback and skill validation through voice chat. • Dual-Language Support: Seamless switching between English and Arabic for smooth learning. Stop stressing over Arabic homework. Download Wajibi AI today and make learning Arabic fast, simple, and effective!

About

Rex

This app offers an interactive learning experience by explaining concepts aloud and allowing users to manipulate 3D models and live charts. It consolidates notes, PDFs, and web research onto a single canvas and supports collaborative study sessions.

Highlights
  • Voice explanations of questions
  • Interactive 3D scenes and live charts
  • Consolidated study canvas
  • Lecture transcription and note-taking
  • Read-aloud functionality for notes and PDFs
  • Language practice with real scenes
  • Live collaborative study boards
Read full description

Rex is a study companion that teaches out loud. Ask a question and hear it explained on a board you can draw on, pull apart, and keep. Most study apps hand you more text to read. Rex shows you the thing itself: a heart mid-beat, a cell you can fly into, a physics problem you can grab and change while it runs. ASK, AND ACTUALLY UNDERSTAND Type or speak a question and get a clear explanation built onto the board in front of you, not buried in a chat log. Ask about what is already on your board and Rex can see it. ONE BOARD FOR THE WHOLE CLASS Notes, PDFs, drawings, timers, recordings, graphs, checklists and web research sit side by side on one canvas. Stop switching between five apps to study one subject. 3D SCENES AND LIVE CHARTS Explore over 70 interactive charts and 20 explorable 3D scenes across biology, physics, chemistry, earth science and computing. Zoom from a whole body down to a single molecule. Change the inputs and watch what happens. RECORD THE LECTURE, GET THE NOTES Rex transcribes while you record, so your notes write themselves. LISTEN INSTEAD OF READING Any note, PDF or scanned page can be read aloud in a natural voice, each sentence highlighted as it is spoken. Photographed pages work too. SPEAK A NEW LANGUAGE Practise in twenty languages by walking through real scenes and talking with characters who answer back. STUDY TOGETHER Share a board and work on it live with classmates. FREE TO START The whiteboard and the core study tools are free. SUBSCRIPTIONS Pro, $11.99 per month. Pro Annual, $99.99 per year, which is about 36 percent less than paying monthly. Premium AI features, higher daily limits, class memory that persists between sessions, premium voice, study video generation and live board sharing require an auto-renewing Pro subscription. Prices are charged from day one and there is no free trial. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the end of the current period. Manage or cancel in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rexstudyapp.com/privacy.html

Screenshots

Wajibi AI4 screens
Rex4 screens

Verdict

The call

The clearest difference is iOS requirement: Wajibi AI at 15.1 against Rex's 18.6. On price, update cadence, ads and in-app purchases 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. Wajibi AI sells 3 in-app purchases, starting at $3.99 per 7 days and Rex sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Wajibi AI ships an update every 4 days, Rex weekly. Both last shipped on October 31, 2026.

Scorecard1 real difference · 8 level
Wajibi AI versus Rex: the parameters behind the verdict, then further details
ParameterWajibi AIRex
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better18.6
Further details — not scored
Size52 MB108 MB
Age rating4+12+
DeveloperMohamed Amine NouhiOran Egbuchunam

In-app purchases

3 purchases

Wajibi AI

Subscriptions3
  • Wajibi AI Pro$3.997 Days
  • Wajibi AI Pro$9.991 Month
  • Wajibi AI Pro$49.991 Year
2 purchases

Rex

Subscriptions2
  • Pro$12.991 Month
  • Rex Pro Annual$99.991 Year

Questions

Is Wajibi AI free?
Wajibi AI is free to download, with in-app purchases available.
Is Rex free?
Rex is free to download, with in-app purchases available.
Do Wajibi AI or Rex have ads?
Neither Wajibi AI nor Rex shows ads.
Which is updated more often, Wajibi AI or Rex?
Wajibi AI ships an update every 4 days, and Rex weekly. Most recently, Wajibi AI was updated on October 31, 2026 and Rex on October 31, 2026.

Other comparisons