# NDorphins vs Underground Pilates Studio

The clearest difference is update cadence: NDorphins at every 6 weeks against Underground Pilates Studio's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

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

NDorphins ships an update every 6 weeks, Underground Pilates Studio every 10 months. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | NDorphins | Underground Pilates Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ndorphins/id6590615773/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 10 months |
| Monetization | Free | — |
| Size | 133 MB | 124 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 12+ |
| Developer | [NDORPHINS LLC](https://appshunter.io/developer/1760097099) | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) |

## What reviewers say

### NDorphins

[App page](https://appshunter.io/ios/app/ndorphins/id6590615773)

This fitness app offers personalized workout and meal plans, progress tracking, and direct messaging with coaches. It integrates with wearables and health kits to provide comprehensive insights into your fitness journey.

**Highlights:** Personalized workout plans, Customized meal plans, Progress tracking and analytics, Direct messaging with coaches, Wearable and health kit integration, Hydration and habit tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Underground Pilates Studio

[App page](https://appshunter.io/ios/app/underground-pilates-studio/id6740875130)

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

**In-app purchases:** none


## Frequently asked questions

### Is NDorphins free?

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

### Is Underground Pilates Studio free?

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

### Do NDorphins or Underground Pilates Studio have ads?

Neither NDorphins nor Underground Pilates Studio shows ads.

### Which is updated more often, NDorphins or Underground Pilates Studio?

NDorphins ships an update every 6 weeks, and Underground Pilates Studio every 10 months. Most recently, NDorphins was updated on October 5, 2026 and Underground Pilates Studio on October 7, 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.*