# TOPIK ONE vs Time Zone Swap

The clearest difference is in-app purchases: Time Zone Swap at none against TOPIK ONE's 2. Time Zone Swap also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. TOPIK ONE sells 2 in-app purchases, starting at $1.99 per month. Time Zone Swap asks for nothing beyond the download.

TOPIK ONE ships an update every 2 months, Time Zone Swap every 3 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | TOPIK ONE | Time Zone Swap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/topik-one/id670590734/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 22 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Andre Graziani](https://appshunter.io/developer/670590737) | [Thi Ngan Ha Pham](https://appshunter.io/developer/6803484106) |

## What reviewers say

### TOPIK ONE

[App page](https://appshunter.io/ios/app/topik-one/id670590734)

Prepare for the Test of Proficiency in Korean (TOPIK) with realistic practice tests. Get instant feedback on your answers and utilize a built-in dictionary to improve your vocabulary. Ideal for intermediate to advanced learners aiming to ace the exam.

**Highlights:** TOPIK-style practice tests, Vocabulary & Grammar practice, Listening comprehension practice, Writing section practice, Instant feedback on answers, Integrated dictionary

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $19.99 | per year |


### Time Zone Swap

[App page](https://appshunter.io/ios/app/time-zone-swap/id6803484104)

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

**In-app purchases:** none


## Frequently asked questions

### Is TOPIK ONE free?

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

### Is Time Zone Swap free?

Time Zone Swap is free to download, with no in-app purchases.

### Do TOPIK ONE or Time Zone Swap have ads?

Neither TOPIK ONE nor Time Zone Swap shows ads.

### Which is updated more often, TOPIK ONE or Time Zone Swap?

TOPIK ONE ships an update every 2 months, and Time Zone Swap every 3 weeks. Most recently, TOPIK ONE was updated on October 23, 2026 and Time Zone Swap on October 25, 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.*