O.R. Billing vs CAIA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
O.R. Billing
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Streamline your surgical practice with O.R. Billing, the ultimate tool for surgeons to effortlessly report their surgery encounters. Designed for simplicity and efficiency, our app revolutionizes the billing process, saving you precious time and ensuring accuracy. O.R. Billing empowers surgeons to take control of their billing process, ensuring accurate and timely reimbursement. Transform your surgical practice with O.R. Billing - your key to efficient surgery encounter reporting.
CAIA
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Caia is an AI-powered assistant built for healthcare professionals—doctors, nurses, and medical coders—designed to simplify clinical workflows, medical coding, and documentation. Key Features: AI Medical Chat Ask medical questions, get coding guidance, or clarify clinical documentation with real-time AI support. Smart Form Generation Automatically generate structured medical forms and clinical notes tailored to your specialty and patient input. Accurate Medical Coding Improve billing accuracy with AI-assisted ICD/CPT coding suggestions based on your clinical data. Designed for Doctors & Nurses Built with frontline healthcare needs in mind, Caia helps reduce admin time and lets you focus on patient care. Secure & Confidential Your data is protected—Caia uses secure processing to maintain HIPAA-aligned standards. Whether you're managing patient records or coding for insurance claims, Caia streamlines your work so you can do more, faster—with less effort.
Screenshots
Verdict
The clearest difference is update cadence: CAIA at every 2 weeks against O.R. Billing's every 3 months. CAIA also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
O.R. Billing ships an update every 3 months, CAIA every 2 weeks. Both last shipped on October 30, 2026.
| Parameter | O.R. Billing | CAIA |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 73 MB |
| Age rating | 17+ | 12+ |
| Developer | Communicans LLC | Experto AI Inc. |
In-app purchases
O.R. Billing
No in-app purchases
CAIA
No in-app purchases









