# The Silhouette Method App vs Darwin

The clearest difference is in-app purchases: The Silhouette Method App at none against Darwin's 2. Darwin's advantage is update cadence (every 3 days vs every 4 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Darwin sells 2 in-app purchases, starting at $9.99 per month. The Silhouette Method App asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for The Silhouette Method App against 5.0 for Darwin. Both are backed by a comparable volume of ratings — 8 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

The Silhouette Method App ships an update every 4 months, Darwin every 3 days. The most recent releases landed on September 22, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | The Silhouette Method App | Darwin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (8 ratings)](https://appshunter.io/ios/app/the-silhouette-method-app/id6756787319/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/darwin-adaptive-training/id6790443867/reviews) |
| Number of ratings | **8** | 3 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 121 MB | 55 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Sutra Fitness, Inc.](https://appshunter.io/developer/914371834) | [Darwin Endurance LLC](https://appshunter.io/developer/6790443869) |

## What reviewers say

### The Silhouette Method App

[App page](https://appshunter.io/ios/app/the-silhouette-method-app/id6756787319)

This app offers a variety of low-impact, Pilates-based workouts, including live and on-demand classes. Explore exclusive formats, prenatal/postnatal options, and customizable routines to achieve your fitness goals from anywhere.

**Highlights:** On-demand library with 400+ routines, Live and in-person class booking, Exclusive class formats (Signature, Fire Abs, Slow Sculpt, Barre Elevated, Power Dance Cardio), Prenatal and Postnatal library, Routines filterable by duration (5-50 minutes), Beginner to Advanced levels, Prop-optional workouts

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

**In-app purchases:** none


### Darwin

[App page](https://appshunter.io/ios/app/darwin-adaptive-training/id6790443867)

This app creates personalized weekly training plans for endurance athletes, adapting to your actual performance, sleep, and well-being. It rebuilds your schedule each week, offering clear explanations for adjustments and incorporating race-specific training and fueling targets.

**Highlights:** Weekly plan rebuilding, Adaptive volume and intensity, Race-specific session shaping, Carbohydrate fueling targets, Readiness tracking from health data, Plain-language explanations

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Darwin | $9.99 | per month |
| Darwin | $79.99 | per year |


## Frequently asked questions

### Is The Silhouette Method App free?

The Silhouette Method App is free to download, with no in-app purchases.

### Is Darwin free?

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

### Which has better reviews, The Silhouette Method App or Darwin?

The Silhouette Method App and Darwin are both rated 5.0 out of 5 on the App Store, from 8 and 3 ratings respectively.

### Do The Silhouette Method App or Darwin have ads?

Neither The Silhouette Method App nor Darwin shows ads.

### Which is updated more often, The Silhouette Method App or Darwin?

The Silhouette Method App ships an update every 4 months, and Darwin every 3 days. Most recently, The Silhouette Method App was updated on September 22, 2026 and Darwin on September 19, 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.*