# Plankstar vs 보통의하루 (CommonDay)

The clearest difference is in-app purchases: 보통의하루 (CommonDay) at none against Plankstar's 3. 보통의하루 (CommonDay) also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). On price, device support and iOS requirement there is nothing between them.

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

Plankstar ships an update every 3 months, 보통의하루 (CommonDay) weekly. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Plankstar | 보통의하루 (CommonDay) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/plankstar-plank-workout-timer/id1607941164/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Youngwan Choi](https://appshunter.io/developer/468424676) | [Yeoon&Company Co.,Ltd](https://appshunter.io/developer/1849139314) |

## What reviewers say

### Plankstar

[App page](https://appshunter.io/ios/app/plankstar-plank-workout-timer/id1607941164)

This app helps you track and improve your plank workouts with various timer modes, voice guidance, and detailed statistics. It automatically records your progress and allows you to share achievements. Unlock premium features and remove ads with an in-app purchase.

**Highlights:** Plank timer with goal, max time, and set modes, Voice guidance and sound effects, Automatic workout recording, Workout calendar and statistics, Customizable challenges, Apple Health integration, Social sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $0.99 | per month |
| Annual Premium | $3.99 | per year |
| Lifetime Premium | $19.99 | one-time |


### 보통의하루 (CommonDay)

[App page](https://appshunter.io/ios/app/commonday/id6759367813)

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

**In-app purchases:** none


## Frequently asked questions

### Is Plankstar free?

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

### Is 보통의하루 (CommonDay) free?

보통의하루 (CommonDay) is free to download, with no in-app purchases.

### Do Plankstar or 보통의하루 (CommonDay) have ads?

Plankstar shows ads; 보통의하루 (CommonDay) does not.

### Which is updated more often, Plankstar or 보통의하루 (CommonDay)?

Plankstar ships an update every 3 months, and 보통의하루 (CommonDay) weekly. Most recently, Plankstar was updated on September 17, 2026 and 보통의하루 (CommonDay) on September 18, 2026.

---

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