# Online Anaesthesia vs iTIVA Anesthesia Plus

The clearest difference is rating: iTIVA Anesthesia Plus at 4.8 against Online Anaesthesia's 2.0. iTIVA Anesthesia Plus also leads on review sentiment (73% vs 33%) and ratings volume (346 vs 3). Online Anaesthesia's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 11.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. iTIVA Anesthesia Plus sells 2 in-app purchases, starting at $9.99 per year. Online Anaesthesia asks for nothing beyond the download.

iTIVA Anesthesia Plus holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: iTIVA Anesthesia Plus has 346 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Online Anaesthesia's written reviews are positive against 73% of iTIVA Anesthesia Plus's.

Online Anaesthesia ships an update every 3 months, iTIVA Anesthesia Plus every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Online Anaesthesia | iTIVA Anesthesia Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/online-anaesthesia/id399391367/reviews) | **[4.8 (346 ratings)](https://appshunter.io/ios/app/itiva-anesthesia-plus/id1442975682/reviews)** |
| Number of ratings | 3 | **346** |
| Positive reviews | 33.3% of reviews | **72.7% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | **Free** | Subscription |
| Size | 66 MB | 125 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Arjus Limited](https://appshunter.io/developer/399391370) | [ANESTESIARTE CALI SAS](https://appshunter.io/developer/782878902) |

## What reviewers say

### Online Anaesthesia

[App page](https://appshunter.io/ios/app/online-anaesthesia/id399391367)

Log your medical cases from various specialties, including operations, intensive care, and pain management. This app offers an easy-to-use interface for instant case viewing, adding, and updating. Cases can be added offline and synced later, with daily backups and local backup options for your data.

**Highlights:** Log cases from operations, regional anaesthesia, obstetrics, ICU, and pain management, View, add, and update cases instantly, Offline case logging with automatic syncing, Daily database backups, Local backup option

**Features:** macOS Compatibility

**In-app purchases:** none


### iTIVA Anesthesia Plus

[App page](https://appshunter.io/ios/app/itiva-anesthesia-plus/id1442975682)

This app simulates drug concentrations in plasma and optimizes infusion schemes for medical professionals. It offers a comprehensive drug library, target-controlled infusion simulation, and MAC age calculation. Users can explore drug interactions, share cases, and export data.

**Highlights:** Accurate drug concentration estimation, Target Controlled Infusion (TCI) simulation, Comprehensive drug library (28 drugs), Explore drug interactions (70 PK, 10 PD models), MAC Age Calculation, Intraoperative milestones & case sharing, Save and run multiple simulations, Excel data export

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iTIVA yearly | $9.99 | per year |
| iTIVA yearly 2021 | $9.99 | per year |


## Frequently asked questions

### Is Online Anaesthesia free?

Online Anaesthesia is free to download, with no in-app purchases.

### Is iTIVA Anesthesia Plus free?

iTIVA Anesthesia Plus is free to download, with in-app purchases available.

### Which has better reviews, Online Anaesthesia or iTIVA Anesthesia Plus?

iTIVA Anesthesia Plus is rated higher. Online Anaesthesia averages 2.0 out of 5 from 3 ratings, while iTIVA Anesthesia Plus averages 4.8 from 346 ratings.

### Do Online Anaesthesia or iTIVA Anesthesia Plus have ads?

Neither Online Anaesthesia nor iTIVA Anesthesia Plus shows ads.

### Which is updated more often, Online Anaesthesia or iTIVA Anesthesia Plus?

Online Anaesthesia ships an update every 3 months, and iTIVA Anesthesia Plus every 2 months. Most recently, Online Anaesthesia was updated on November 1, 2026 and iTIVA Anesthesia Plus on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*