# FITNESS 101 멤버십 vs 3BA PostureLab

The clearest difference is in-app purchases: FITNESS 101 멤버십 at none against 3BA PostureLab's 2. FITNESS 101 멤버십 also leads on iOS requirement (12.0 vs 15.0). 3BA PostureLab's advantage is update cadence (every 4 days vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. 3BA PostureLab sells 2 in-app purchases, starting at $17.99 per month. FITNESS 101 멤버십 asks for nothing beyond the download.

FITNESS 101 멤버십 ships an update every 13 months, 3BA PostureLab every 4 days. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | FITNESS 101 멤버십 | 3BA PostureLab |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 11 MB | 107 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [REDBLUE Inc.](https://appshunter.io/developer/1230337235) | [dakyoung woo](https://appshunter.io/developer/6782053848) |

## What reviewers say

### FITNESS 101 멤버십

[App page](https://appshunter.io/ios/app/fitness-101/id1541293149)

Easily book and manage fitness classes and schedules from your smartphone anytime, anywhere. Purchase and track membership passes, and access exclusive trainer tips for a comprehensive fitness journey.

**Highlights:** One-touch booking for various fitness classes, Schedule and usage management, 24/7 mobile membership payment, Exclusive trainer workout tips, Diet management guidance

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

**In-app purchases:** none


### 3BA PostureLab

[App page](https://appshunter.io/ios/app/3ba-posturelab/id6782053846)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UNLIMITED 월간 무제한 | $17.99 | per month |
| BASIC 자세 분석 | $2.99 | one-time |


## Frequently asked questions

### Is FITNESS 101 멤버십 free?

FITNESS 101 멤버십 is free to download, with no in-app purchases.

### Is 3BA PostureLab free?

3BA PostureLab is free to download, with in-app purchases available.

### Do FITNESS 101 멤버십 or 3BA PostureLab have ads?

Neither FITNESS 101 멤버십 nor 3BA PostureLab shows ads.

### Which is updated more often, FITNESS 101 멤버십 or 3BA PostureLab?

FITNESS 101 멤버십 ships an update every 13 months, and 3BA PostureLab every 4 days. Most recently, FITNESS 101 멤버십 was updated on October 24, 2026 and 3BA PostureLab on October 14, 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.*