# PKK vs L4B

The clearest difference is in-app purchases: PKK at none against L4B's 8. L4B's advantage is update cadence (every 4 days vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. L4B sells 8 one-off in-app purchases. PKK asks for nothing beyond the download.

PKK ships an update every 6 weeks, L4B every 4 days. The most recent releases landed on September 27, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | PKK | L4B |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pkk/id6479022692/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 83 MB | 52 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Perfect Gym Solutions Sp. z o.o.](https://appshunter.io/developer/1004382730) | [Mikk Parnaste](https://appshunter.io/developer/6800905409) |

## What reviewers say

### PKK

[App page](https://appshunter.io/ios/app/pkk/id6479022692)

Easily book and manage your fitness classes, join waitlists, and purchase class packages. Track your profile and membership status, and stay updated on new products and services.

**Highlights:** Book classes easily, Manage fitness experience, Join waitlists, Purchase class packages, Check profile and membership, Stay updated on services

**Features:** macOS Compatibility

**In-app purchases:** none


### L4B

[App page](https://appshunter.io/ios/app/l4b/id6800905407)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5-Day Gym Plan (Men) | $59.00 | one-time |
| 3-Day Gym Plan (Men) | $59.00 | one-time |
| 6-Day Gym Plan (Men) | $59.00 | one-time |
| Full Body Gym Plan (Men) | $59.00 | one-time |
| 3-Day Gym Plan (Women) | $59.00 | one-time |
| Booty Focus Gym Plan (Women) | $59.00 | one-time |
| 6-Day Gym Plan (Women) | $59.00 | one-time |
| 5-Day Gym Plan (Women) | $59.00 | one-time |


## Frequently asked questions

### Is PKK free?

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

### Is L4B free?

L4B is free to download, with in-app purchases available.

### Do PKK or L4B have ads?

Neither PKK nor L4B shows ads.

### Which is updated more often, PKK or L4B?

PKK ships an update every 6 weeks, and L4B every 4 days. Most recently, PKK was updated on September 27, 2026 and L4B on September 30, 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.*