Kassi vs Cortex
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Kassi
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Kassi - a kidsβ play store game with a real barcode scanner Turn your iPhone into a toy store! With Kassi, kids can scan real barcodes from everyday products, add items to a cart, and play cashier at their own pretend checkout. Just like in a real store - scan items, see them appear in the cart, and press Pay to complete the purchase. No internet, no ads, no accounts - just a simple and safe play experience. How the game works 1. Create your store catalog First, add products to your store. β’ Tap Add Product β’ Scan a barcode or QR code β’ Enter a name and price (or use the suggested values) The product is now saved in your catalog. 2. Scan products like a real cashier Once a product is in your catalog, scan the same code again to add it to the cart. Kids can scan items just like at a real store checkout. If you scan a code that is not yet in the catalog, Kassi will suggest adding it first. 3. Use the shopping cart Open the Cart to see all scanned items and the total price. Then choose: β’ Pay - simulate checkout with a receipt sound β’ Clear Cart - empty the cart and start scanning again 4. Manage your catalog All products you create are stored in the Catalog, where you can view or edit them anytime. Features β’ Real barcode and QR code scanning β’ Create your own store catalog β’ Simple shopping cart and checkout simulation β’ Works completely offline β’ No ads, no tracking, no in-app purchases Who itβs for Perfect for kids who love playing store or cashier, and for parents who want a safe and simple app with no ads or distractions.
Cortex
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Cortex turns medical learning into a daily habit. Step into the role of the only doctor on duty and solve realistic clinical cases β read the presentation, work through the patient, and sharpen the diagnostic instincts that exams and the wards demand. Every day brings a fresh case. Build a streak, earn XP, climb the leagues, and watch your skills grow from medical student to expert clinician. WHAT YOU GET - Daily Clinical Cases β a new patient mystery every single day to keep you sharp - Master Every Specialty β train across cardiology, hematology, nephrology, infectious disease, rheumatology, vascular medicine, and more - Compete & Climb β rise through Bronze, Silver and beyond in weekly leagues - Streaks & Rewards β keep your diagnostic flame alive, earn coins, and use Streak Freezes to protect your momentum - Level Up β earn XP, unlock specialty trophies, and track your journey from student to master - Practice Anytime β a permanent library of cases to browse and solve on your schedule WHO IT'S FOR Medical students, interns, residents, and doctors who want a fast, fun, and genuinely challenging way to revise clinical reasoning β whether you're prepping for exams or keeping your edge between shifts. WHY CORTEX No dry question banks. No clutter. Just beautifully simple cases, real progression, and the daily push to think like a doctor. Note: Cortex is a learning and revision tool for medical education and entertainment. It is not a medical device and is not intended for real-world diagnosis, treatment, or clinical decision-making. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cortexcases.com/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Kassi at none against Cortex's 2. Kassi also leads on iOS requirement (15.0 vs 17.0). Cortex's advantage is device support. On price there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Cortex sells 2 in-app purchases, starting at $11.99 per month. Kassi asks for nothing beyond the download.
| Parameter | Kassi | Cortex |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Weekly |
| Ads | β | No |
| In-app purchases | No β better | Yes |
| Devices | β | iPhone, iPad β better |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 41 MB | 87 MB |
| Age rating | 4+ | 17+ |
| Developer | Ilya Ostrerov | Rudrakshi Patel |
In-app purchases
Kassi
No in-app purchases
Cortex
- Cortex Monthly Subscription$11.991 Month
- Cortex Yearly Subscription$79.991 Year









