# Dermapenworld vs AnSo

The clearest difference is rating: Dermapenworld at 5.0 against AnSo's 3.5. Dermapenworld also leads on in-app purchases (none vs 4). AnSo's advantage is review sentiment (39% vs 0%) and update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. AnSo sells 4 in-app purchases, starting at $0.49 per month. Dermapenworld asks for nothing beyond the download.

Dermapenworld holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: AnSo has 30 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 0% of Dermapenworld's written reviews are positive against 39% of AnSo's, so the app with the better star average is not the one people write more warmly about.

Dermapenworld ships an update every 2 months, AnSo fortnightly. The most recent releases landed on September 18, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Dermapenworld | AnSo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dermapenworld/id1515745889/reviews)** | [3.5 (30 ratings)](https://appshunter.io/ios/app/anso/id1627451047/reviews) |
| Number of ratings | 2 | **30** |
| Positive reviews | 0.0% of reviews | **39.1% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Subscription |
| Best chart rank | — | **#84** |
| Size | 34 MB | 72 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [DermapenWorld](https://appshunter.io/developer/1406657164) | [Sumo Enterprises Pty Ltd](https://appshunter.io/developer/1202779263) |

## What reviewers say

### Dermapenworld

[App page](https://appshunter.io/ios/app/dermapenworld/id1515745889)

This application connects your Dermapen device to your clinic. It allows for firmware updates to ensure your device operates with the latest technology.

**Highlights:** Register Dermapen device, Clinic registration, Firmware updates, Latest technology integration, Device operation optimization

**Features:** macOS Compatibility

**In-app purchases:** none


### AnSo

[App page](https://appshunter.io/ios/app/anso/id1627451047)

**Currently charting:** #84 Top Grossing · Medical (US App Store)

This app helps anesthesiologists quickly identify sonoanatomy for various procedures. It offers detailed images, landmark sketches, and innervation data for nerve blocks, along with tips from experienced clinicians. It covers regional anesthesia and other perioperative ultrasound uses.

**Highlights:** Sonoanatomy identification, Landmark sketches, Nerve block innervation, Ergonomic positioning guides, Perioperative ultrasound uses, Clinical tips and notes

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AnSo one month subscription | $0.49 | per month |
| AnSo Pro one year subscription | $5.99 | per year |
| AnSo Pro subscription | $5.99 | per year |
| AnSo one year subscription | $5.99 | per year |


## Frequently asked questions

### Is Dermapenworld free?

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

### Is AnSo free?

AnSo is free to download, with in-app purchases available.

### Which has better reviews, Dermapenworld or AnSo?

Dermapenworld is rated higher. Dermapenworld averages 5.0 out of 5 from 2 ratings, while AnSo averages 3.5 from 30 ratings.

### Do Dermapenworld or AnSo have ads?

Neither Dermapenworld nor AnSo shows ads.

### Which is updated more often, Dermapenworld or AnSo?

Dermapenworld ships an update every 2 months, and AnSo fortnightly. Most recently, Dermapenworld was updated on September 18, 2026 and AnSo on October 1, 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.*