# Strong Curves vs Sanctuary

The clearest difference is in-app purchases: Strong Curves at none against Sanctuary's 1. Sanctuary's advantage is iOS requirement (13.0 vs 15.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sanctuary sells 1 in-app purchase, starting at $5.99 per month. Strong Curves asks for nothing beyond the download.

Strong Curves ships an update weekly, Sanctuary every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Strong Curves | Sanctuary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/strong-curves/id6469670851/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | Free | — |
| Size | 64 MB | 30 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Booking Board](https://appshunter.io/developer/1698899191) | [Jakob Weise Hellum](https://appshunter.io/developer/1891726576) |

## What reviewers say

### Strong Curves

[App page](https://appshunter.io/ios/app/strong-curves/id6469670851)

This app centralizes your fitness journey, offering class booking, event registration, and personalized training programs. It also features a shop for fitness essentials and allows you to track your progress over time. Get to know the team behind the center with dedicated profiles.

**Highlights:** Class booking and management, Event registration, Personalized training programs, Progress tracking, In-app shop for fitness essentials, Meet the team section

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

**In-app purchases:** none


### Sanctuary

[App page](https://appshunter.io/ios/app/sanctuary/id6761840306)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sanctuary Premium | $5.99 | per month |


## Frequently asked questions

### Is Strong Curves free?

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

### Is Sanctuary free?

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

### Do Strong Curves or Sanctuary have ads?

Neither Strong Curves nor Sanctuary shows ads.

### Which is updated more often, Strong Curves or Sanctuary?

Strong Curves ships an update weekly, and Sanctuary every 4 days. Most recently, Strong Curves was updated on November 3, 2026 and Sanctuary on October 31, 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.*