# Perioperative risk vs Infusão Certa

The clearest difference is in-app purchases: Infusão Certa at none against Perioperative risk's 1. Infusão Certa also leads on update cadence (every 2 days vs every 2 months) and price ($2.99 vs $4.99). On ads, device support and iOS requirement there is nothing between them.

Perioperative risk costs $4.99 and Infusão Certa $2.99 up front. Perioperative risk sells 1 one-off in-app purchase. Infusão Certa asks for nothing beyond the download.

Perioperative risk ships an update every 2 months, Infusão Certa every 2 days. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Perioperative risk | Infusão Certa |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Paid | — |
| Size | 9 MB | 3 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +17 | 17+ |
| Developer | [Bruno Caramelli](https://appshunter.io/developer/1141478682) | [Nerdcina LTDA](https://appshunter.io/developer/1724318298) |

## What reviewers say

### Perioperative risk

[App page](https://appshunter.io/ios/app/perioperative-risk/id1096306969)

This medical app assists physicians with cardiovascular risk assessment and prevention in patients undergoing non-cardiac surgery. It estimates complication risks and offers evidence-based tips to mitigate them through a visual flowchart.

**Highlights:** Cardiovascular risk estimation, Complication prevention tips, Pipeline flowchart guidance, Evidence-based recommendations, Bedside clinical tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Perioperative Risk - Patient Record | $2.99 | one-time |


### Infusão Certa

[App page](https://appshunter.io/ios/app/infusao-certa/id6475583022)

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

**In-app purchases:** none


## Frequently asked questions

### Is Perioperative risk free?

Perioperative risk costs $4.99, and also offers in-app purchases.

### Is Infusão Certa free?

Infusão Certa costs $2.99, with no in-app purchases.

### Do Perioperative risk or Infusão Certa have ads?

Neither Perioperative risk nor Infusão Certa shows ads.

### Which is updated more often, Perioperative risk or Infusão Certa?

Perioperative risk ships an update every 2 months, and Infusão Certa every 2 days. Most recently, Perioperative risk was updated on November 6, 2026 and Infusão Certa on November 8, 2026.

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