# TOPIK PassNote vs Skix Echo

The clearest difference is in-app purchases: Skix Echo at none against TOPIK PassNote's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TOPIK PassNote sells 1 one-off in-app purchase. Skix Echo asks for nothing beyond the download.

TOPIK PassNote ships an update every 6 days, Skix Echo every 5 days. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | TOPIK PassNote | Skix Echo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 5 days** |
| Size | 120 MB | 22 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Jinyoung Lee](https://appshunter.io/developer/1880091360) | [SKIX K.K.](https://appshunter.io/developer/6787700517) |

## What reviewers say

### TOPIK PassNote

[App page](https://appshunter.io/ios/app/topik-passnote-korean-test/id6782555807)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium Access | $14.99 | one-time |


### Skix Echo

[App page](https://appshunter.io/ios/app/skix-echo/id6803100267)

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

**In-app purchases:** none


## Frequently asked questions

### Is TOPIK PassNote free?

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

### Is Skix Echo free?

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

### Do TOPIK PassNote or Skix Echo have ads?

Neither TOPIK PassNote nor Skix Echo shows ads.

### Which is updated more often, TOPIK PassNote or Skix Echo?

TOPIK PassNote ships an update every 6 days, and Skix Echo every 5 days. Most recently, TOPIK PassNote was updated on October 16, 2026 and Skix Echo on October 14, 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.*