# The Shredquarters vs Underground

The clearest difference is ads: Underground at none against The Shredquarters's shown. The Shredquarters's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.6). On price, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Shredquarters ships an update monthly, Underground every 2 months. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | The Shredquarters | Underground |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free |
| Size | 133 MB | 101 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The Shredquarters Ltd](https://appshunter.io/developer/1494732070) | [Perfect Gym Solutions Sp. z o.o.](https://appshunter.io/developer/1004382730) |

## What reviewers say

### The Shredquarters

[App page](https://appshunter.io/ios/app/the-shredquarters/id1494732071)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Underground

[App page](https://appshunter.io/ios/app/underground-gym/id1633463579)

Easily manage your fitness club experience from your mobile device. Book classes, access your membership details, and enter your club using QR codes. Stay updated with club information and class reminders.

**Highlights:** QR code club entry, Class booking, Membership management, Club information access, Friend invitations, Attendance tracking, Class reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is The Shredquarters free?

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

### Is Underground free?

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

### Do The Shredquarters or Underground have ads?

The Shredquarters shows ads; Underground does not.

### Which is updated more often, The Shredquarters or Underground?

The Shredquarters ships an update monthly, and Underground every 2 months. Most recently, The Shredquarters was updated on October 14, 2026 and Underground on October 25, 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.*