Comparison

Ontol vs MedCastle

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

Head to head
About

Ontol

Decode complex medical reports with ease. Upload or snap a picture of your MRI, CT, or histopathology results to receive clear explanations of medical jargon and abbreviations. This tool aids understanding but should not replace professional medical advice.

Highlights
  • Medical jargon explanation
  • AI-powered analysis
  • Supports MRI, CT, histopathology
  • OCR and translation
  • Clearer understanding of reports
Features
Read full description

Experiencing difficulties understanding your medical reports due to medical jargon? Simply take a picture and upload it onto Ontol, where you can get an easier explanation of your medical test reports. With our AI models, we provide you with a clearer understanding of difficult medical terminology and abbreviations used throughout MRI, CT, and histopathology reports. Note: Currently, Ontol best supports MRI, CT, and histopathology results, and we plan to support a wider range of services throughout future updates. We use optical character recognition (OCR) and translation algorithms, which may produce varying results depending on the quality of the report scan, leading to slightly different explanations. Note that the result may contain errors and should not be used for making medical decisions. Warning: Ontol is not responsible for any medical judgments, diagnoses, or substitutions to clinical consultations with healthcare professionals. Medical decisions and treatments should always be made in consultation with qualified medical practitioners.

About

MedCastle

Features
Read full description

Welcome to Medcastle – Your Intelligent Medical Companion. Medcastle is more than just a medical directory; it’s a comprehensive, interactive support system designed for your health and peace of mind. Key Interactive Features: ● AI Medical Chatbot: Get instant, intelligent responses to your medical inquiries. Our advanced AI is trained to provide guidance and support whenever you need it. ● Secure Data Vault: Your privacy is our priority. We use hardware-backed encryption to store your sensitive information safely on your device. ● Real-time Guidance: Navigate your medical journey with interactive tools and personalized support. ● Verified Information: Access a curated database of medical services and information, all within a professional and intuitive interface. Why Medcastle? Unlike standard websites, Medcastle provides a personalized, secure, and interactive experience tailored to your specific needs. Whether you’re looking for instant answers or a safe place for your health data, Medcastle is here for you. Medical Disclaimer: This app provides general medical information and AI-driven support for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this app.

Screenshots

Ontol4 screens
MedCastle4 screens

Verdict

The call

The clearest difference is update cadence: MedCastle at every 2 days against Ontol's every 9 days. MedCastle also leads on iOS requirement (13.0 vs 15.1). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ontol ships an update every 9 days, MedCastle every 2 days. The most recent releases landed on October 10, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 7 level
Ontol versus MedCastle: the parameters behind the verdict, then further details
ParameterOntolMedCastle
PriceFreeFree
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 9 daysEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size53 MB22 MB
Age rating17+4+
DeveloperTesser Inc.shimaa riyad

In-app purchases

None

Ontol

No in-app purchases

None

MedCastle

No in-app purchases

Questions

Is Ontol free?
Ontol is free to download, with no in-app purchases.
Is MedCastle free?
MedCastle is free to download, with no in-app purchases.
Do Ontol or MedCastle have ads?
Neither Ontol nor MedCastle shows ads.
Which is updated more often, Ontol or MedCastle?
Ontol ships an update every 9 days, and MedCastle every 2 days. Most recently, Ontol was updated on October 10, 2026 and MedCastle on October 16, 2026.

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