# 공부G타임 vs Stackd

The clearest difference is in-app purchases: 공부G타임 at none against Stackd's 1. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Stackd sells 1 one-off in-app purchase. 공부G타임 asks for nothing beyond the download.

## The numbers

| Metric | 공부G타임 | Stackd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 1 MB | 3 MB |
| Requires iOS | 18.4 | **18** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CHUL HYUN LEE](https://appshunter.io/developer/297999549) | [Nene Nakagawa](https://appshunter.io/developer/1821103094) |

## What reviewers say

### 공부G타임

[App page](https://appshunter.io/ios/app/g/id6745181817)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stackd

[App page](https://appshunter.io/ios/app/stackd-study-timer-and-tracker/id6761293821)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stackd Pro | $1.99 | one-time |


## Frequently asked questions

### Is 공부G타임 free?

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

### Is Stackd free?

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

### Do 공부G타임 or Stackd have ads?

Neither 공부G타임 nor Stackd shows ads.

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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.*