# 追星手帳本 vs Study Corgi

追星手帳本 and Study Corgi are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 追星手帳本 sells 3 in-app purchases, starting at $0.99 per month and Study Corgi sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | 追星手帳本 | Study Corgi |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | Every 3 days |
| Size | 20 MB | 141 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [chung man tsang](https://appshunter.io/developer/6811791847) | [Jayden Tran](https://appshunter.io/developer/6813885554) |

## What reviewers say

### 追星手帳本

[App page](https://appshunter.io/ios/app/id6811791845)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro 月費 | $0.99 | per month |
| Pro 年費 | $6.99 | per year |
| 追星手帳 Pro（永久） | $14.99 | one-time |


### Study Corgi

[App page](https://appshunter.io/ios/app/study-corgi-pomodoro-timer/id6813885552)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $4.99 | per month |
| Premium Yearly | $25.99 | per year |
| 1,000 Coins | $0.99 | one-time |
| 3,000 Coins | $2.99 | one-time |
| 8,000 Coins | $6.99 | one-time |
| Premium Lifetime | $45.99 | one-time |


## Frequently asked questions

### Is 追星手帳本 free?

追星手帳本 is free to download, with in-app purchases available.

### Is Study Corgi free?

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

### Do 追星手帳本 or Study Corgi have ads?

Both 追星手帳本 and Study Corgi show ads.

### Which is updated more often, 追星手帳本 or Study Corgi?

追星手帳本 ships an update every 3 days, and Study Corgi every 3 days. Most recently, 追星手帳本 was updated on November 10, 2026 and Study Corgi on November 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*