# CarPin vs studien(스터디언)

The clearest difference is in-app purchases: studien(스터디언) at none against CarPin's 9. studien(스터디언) also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On price and device support there is nothing between them.

Both are free to download. CarPin sells 9 one-off in-app purchases. studien(스터디언) asks for nothing beyond the download.

CarPin ships an update every 5 weeks, studien(스터디언) every 2 days. The most recent releases landed on October 9, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | CarPin | studien(스터디언) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | — | Free |
| Size | 12 MB | 25 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [VyxWorks](https://appshunter.io/developer/1180399771) | [Rho changjun](https://appshunter.io/developer/6782855349) |

## What reviewers say

### CarPin

[App page](https://appshunter.io/ios/app/carpin/id6761619520)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunset Drive Theme | $1.99 | one-time |
| Candy Pastel Theme | $1.99 | one-time |
| Forest Camp Theme | $1.99 | one-time |
| Ocean Blue Theme | $1.99 | one-time |
| Gold Luxury Theme | $1.99 | one-time |
| Cyberpunk theme | $1.99 | one-time |
| Mono Clean Theme | $1.99 | one-time |
| Imperial Red Theme | $1.99 | one-time |
| Theme All Access | $8.99 | one-time |


### studien(스터디언)

[App page](https://appshunter.io/ios/app/studien/id6789174316)

This app uses a gamified approach to boost focus and productivity. Track your study sessions with a Pomodoro timer or stopwatch and discover unique planets based on your concentration time. Collect these discoveries in your personal catalog.

**Highlights:** Pomodoro timer with customizable intervals, Stopwatch for flexible time tracking, Gamified planet discovery based on focus time, Personalized planet catalog, Daily goal tracking and progress visualization

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

**In-app purchases:** none


## Frequently asked questions

### Is CarPin free?

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

### Is studien(스터디언) free?

studien(스터디언) is free to download, with no in-app purchases.

### Do CarPin or studien(스터디언) have ads?

CarPin shows ads; studien(스터디언) does not.

### Which is updated more often, CarPin or studien(스터디언)?

CarPin ships an update every 5 weeks, and studien(스터디언) every 2 days. Most recently, CarPin was updated on October 9, 2026 and studien(스터디언) on October 8, 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.*