# ASCAR vs SONIC 2027

The clearest difference is iOS requirement: SONIC 2027 at 15.1 against ASCAR's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

ASCAR ships an update every 2 months, SONIC 2027 every 6 weeks. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ASCAR | SONIC 2027 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 22 MB | 37 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Anaesthesia Cognitive Aids and Research Group Incorporated](https://appshunter.io/developer/1609670504) | [EMUGs](https://appshunter.io/developer/6792167163) |

## What reviewers say

### ASCAR

[App page](https://appshunter.io/ios/app/ascar/id1600414369)

This app provides a comprehensive, up-to-date library of cognitive aids for anaesthetists to support planning and crisis response in operating theatres. It features a paediatric dose calculator and advanced search functionality for quick access to critical information, even offline.

**Highlights:** Complete ASCAR library, Paediatric Dose Calculator, Offline access, Advanced search function, Automatically updated aids

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

**In-app purchases:** none


### SONIC 2027

[App page](https://appshunter.io/ios/app/sonic-2027/id6792167161)

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

**In-app purchases:** none


## Frequently asked questions

### Is ASCAR free?

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

### Is SONIC 2027 free?

SONIC 2027 is free to download, with no in-app purchases.

### Do ASCAR or SONIC 2027 have ads?

Neither ASCAR nor SONIC 2027 shows ads.

### Which is updated more often, ASCAR or SONIC 2027?

ASCAR ships an update every 2 months, and SONIC 2027 every 6 weeks. Most recently, ASCAR was updated on October 8, 2026 and SONIC 2027 on October 24, 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.*