# FlowState vs studien(스터디언)

The clearest difference is in-app purchases: studien(스터디언) at none against FlowState's 3. FlowState's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, update cadence and ads there is nothing between them.

Both are free to download. FlowState sells 3 in-app purchases, starting at $0.99 per month. studien(스터디언) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 27, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | FlowState | studien(스터디언) |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | — | Free |
| Size | 149 MB | 25 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Taekyu Lee](https://appshunter.io/developer/1663703906) | [Rho changjun](https://appshunter.io/developer/6782855349) |

## What reviewers say

### FlowState

[App page](https://appshunter.io/ios/app/flowstate-ai-timer/id6760279918)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlowState AI Premium - Monthly | $0.99 | per month |
| FlowState AI Premium - Yearly | $7.99 | per year |
| FlowState AI Premium - Lifetime | $19.99 | 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 FlowState free?

FlowState 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 FlowState or studien(스터디언) have ads?

Neither FlowState nor studien(스터디언) shows ads.

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

FlowState ships an update every 2 days, and studien(스터디언) every 2 days. Most recently, FlowState was updated on September 27, 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.*