# Phum Electronics vs Derm Ko

The clearest difference is iOS requirement: Derm Ko at 10.0 against Phum Electronics's 14.0. 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.

Phum Electronics ships an update every 3 weeks, Derm Ko every 2 weeks. The most recent releases landed on September 13, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Phum Electronics | Derm Ko |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 67 MB | 63 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Biz Solution Co., Ltd.](https://appshunter.io/developer/635146475) | [Theom Buntheoun](https://appshunter.io/developer/1477603956) |

## What reviewers say

### Phum Electronics

[App page](https://appshunter.io/ios/app/phum-electronics/id1599863645)

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

**In-app purchases:** none


### Derm Ko

[App page](https://appshunter.io/ios/app/derm-ko/id6449586967)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Phum Electronics free?

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

### Is Derm Ko free?

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

### Do Phum Electronics or Derm Ko have ads?

Neither Phum Electronics nor Derm Ko shows ads.

### Which is updated more often, Phum Electronics or Derm Ko?

Phum Electronics ships an update every 3 weeks, and Derm Ko every 2 weeks. Most recently, Phum Electronics was updated on September 13, 2026 and Derm Ko on September 7, 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.*